Attempt to enable dual-signing in f31

Signed-off-by: Peter Jones <pjones@redhat.com>

0188-Don-t-add-a-class-option-to-menu-entries-generated-f.patch

@@ -0,0 +1,78 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Fri, 4 Oct 2019 16:43:05 +0200
+Subject: [PATCH] Don't add a class option to menu entries generated for
+ ppc64le
+
+For ppc64le a grub config file with menuentry commands is still generated
+even when BLS support is enabled. That's because BLS support was added to
+Petitboot 1.8.0 and any previous version won't be able to parse BLS files.
+
+To make the BLS snippets the source of truth, these are used to generate
+the menuentry commands in the grub config file.
+
+And to keep it consistent across all ppc64le machines regardless of the
+firmware used, the grub config file is also generated for machines with
+OF that use grub2 and would have BLS support.
+
+The BLS snippets created by the kernel package have fields that are used
+to specify the generated menuentry command users and class options. These
+fields are not present in BLS snippets created by OSTree though, so the
+script generating the menuentry commands will add options with an empty
+argument which will lead to grub failing to parse them.
+
+We could check if the field is defined before attempting to add those, but
+since the grub2 blscfg module also supports setting these to variables, it
+could lead to an empty argument even if was defined in the BLS snippet if
+the variable doesn't exist.
+
+So to make more robust, just don't add a class to the menuentry commands
+generated by the script. It's better to not have a class for the menuentry
+than grub2 failing to parse the command and not populating the boot menu.
+
+Resolves: rhbz#1758225
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ util/grub.d/10_linux_bls.in | 10 +---------
+ 1 file changed, 1 insertion(+), 9 deletions(-)
+
+diff --git a/util/grub.d/10_linux_bls.in b/util/grub.d/10_linux_bls.in
+index 1b7536435f1..68fbedf2129 100644
+--- a/util/grub.d/10_linux_bls.in
++++ b/util/grub.d/10_linux_bls.in
+@@ -127,9 +127,7 @@ read_config()
+     initrd=""
+     options=""
+     linux=""
+-    grub_users=""
+     grub_arg=""
+-    grub_class=""
+ 
+     while read -r line
+     do
+@@ -148,15 +146,9 @@ read_config()
+             "options")
+                 options=${value}
+                 ;;
+-            "grub_users")
+-                grub_users=${value}
+-                ;;
+             "grub_arg")
+                 grub_arg=${value}
+                 ;;
+-            "grub_class")
+-                grub_class=${value}
+-                ;;
+         esac
+     done < ${config_file}
+ }
+@@ -180,7 +172,7 @@ populate_menu()
+     for bls in "${files[@]}" ; do
+         read_config "${blsdir}/${bls}.conf"
+ 
+-        menu="${menu}menuentry '${title}' --class ${grub_class} ${grub_arg} --id=${bls} {\n"
++        menu="${menu}menuentry '${title}' ${grub_arg} --id=${bls} {\n"
+         menu="${menu}\t linux ${linux} ${options}\n"
+         if [ -n "${initrd}" ] ; then
+             menu="${menu}\t initrd ${boot_prefix}${initrd}\n"

0189-blscfg-Fix-typo-for-gfxpayload-variable-name.patch

@@ -0,0 +1,28 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Wed, 16 Oct 2019 12:16:32 +0200
+Subject: [PATCH] blscfg: Fix typo for gfxpayload variable name
+
+There was a silly typo when setting the environment variable gfxpayload so
+graphics mode wouldn't be preserved on some machines leading to text mode.
+
+Resolves: rhbz#1706489
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ grub-core/commands/blscfg.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
+index 26dbe873fe4..8c6dd91be10 100644
+--- a/grub-core/commands/blscfg.c
++++ b/grub-core/commands/blscfg.c
+@@ -822,7 +822,7 @@ static void create_entry (struct bls_entry *entry)
+     }
+ 
+   src = grub_xasprintf ("load_video\n"
+-			"set gfx_payload=keep\n"
++			"set gfxpayload=keep\n"
+ 			"insmod gzio\n"
+ 			"linux %s%s%s%s\n"
+ 			"%s",

0190-grub-set-bootflag-Update-comment-about-running-as-ro.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Wed, 13 Nov 2019 12:15:43 +0100
+Subject: [PATCH] grub-set-bootflag: Update comment about running as root
+ through pkexec
+
+We have stopped using pkexec for grub-set-bootflag, instead it is now
+installed suid root, update the comment accordingly.
+
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ util/grub-set-bootflag.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/util/grub-set-bootflag.c b/util/grub-set-bootflag.c
+index 6a79ee67444..65d74ce010f 100644
+--- a/util/grub-set-bootflag.c
++++ b/util/grub-set-bootflag.c
+@@ -18,7 +18,7 @@
+  */
+ 
+ /*
+- * NOTE this gets run by users as root (through pkexec), so this does not
++ * NOTE this gets run by users as root (its suid root), so this does not
+  * use any grub library / util functions to allow for easy auditing.
+  * The grub headers are only included to get certain defines.
+  */

0191-grub-set-bootflag-Write-new-env-to-tmpfile-and-then-.patch

@@ -0,0 +1,152 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Wed, 13 Nov 2019 13:02:01 +0100
+Subject: [PATCH] grub-set-bootflag: Write new env to tmpfile and then rename
+
+Make the grubenv writing code in grub-set-bootflag more robust by
+writing the modified grubenv to a tmpfile first and then renaming the
+tmpfile over the old grubenv (following symlinks).
+
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ util/grub-set-bootflag.c | 87 +++++++++++++++++++++++++++++++++++++++++++-----
+ 1 file changed, 78 insertions(+), 9 deletions(-)
+
+diff --git a/util/grub-set-bootflag.c b/util/grub-set-bootflag.c
+index 65d74ce010f..d1c5e28862b 100644
+--- a/util/grub-set-bootflag.c
++++ b/util/grub-set-bootflag.c
+@@ -28,7 +28,9 @@
+ #include <grub/err.h>
+ #include <grub/lib/envblk.h> /* For GRUB_ENVBLK_DEFCFG define */
+ #include <errno.h>
++#include <limits.h>
+ #include <stdio.h>
++#include <stdlib.h>
+ #include <string.h>
+ #include <unistd.h>
+ 
+@@ -54,8 +56,10 @@ int main(int argc, char *argv[])
+ {
+   /* NOTE buf must be at least the longest bootflag length + 4 bytes */
+   char env[GRUBENV_SIZE + 1], buf[64], *s;
++  /* +1 for 0 termination, +6 for "XXXXXX" in tmp filename */
++  char env_filename[PATH_MAX + 1], tmp_filename[PATH_MAX + 6 + 1];
+   const char *bootflag;
+-  int i, len, ret;
++  int i, fd, len, ret;
+   FILE *f;
+ 
+   if (argc != 2)
+@@ -77,7 +81,32 @@ int main(int argc, char *argv[])
+   bootflag = bootflags[i];
+   len = strlen (bootflag);
+ 
+-  f = fopen (GRUBENV, "r");
++  /*
++   * Really become root. setuid avoids an user killing us, possibly leaking
++   * the tmpfile. setgid avoids the new grubenv's gid being that of the user.
++   */
++  ret = setuid(0);
++  if (ret)
++    {
++      perror ("Error setuid(0) failed");
++      return 1;
++    }
++
++  ret = setgid(0);
++  if (ret)
++    {
++      perror ("Error setgid(0) failed");
++      return 1;
++    }
++
++  /* Canonicalize GRUBENV filename, resolving symlinks, etc. */
++  if (!realpath(GRUBENV, env_filename))
++    {
++      perror ("Error canonicalizing " GRUBENV " filename");
++      return 1;
++    }
++
++  f = fopen (env_filename, "r");
+   if (!f)
+     {
+       perror ("Error opening " GRUBENV " for reading");
+@@ -132,30 +161,70 @@ int main(int argc, char *argv[])
+   snprintf(buf, sizeof(buf), "%s=1\n", bootflag);
+   memcpy(s, buf, len + 3);
+ 
+-  /* "r+", don't truncate so that the diskspace stays reserved */
+-  f = fopen (GRUBENV, "r+");
++
++  /*
++   * Create a tempfile for writing the new env.  Use the canonicalized filename
++   * for the template so that the tmpfile is in the same dir / on same fs.
++   */
++  snprintf(tmp_filename, sizeof(tmp_filename), "%sXXXXXX", env_filename);
++  fd = mkstemp(tmp_filename);
++  if (fd == -1)
++    {
++      perror ("Creating tmpfile failed");
++      return 1;
++    }
++
++  f = fdopen (fd, "w");
+   if (!f)
+     {
+-      perror ("Error opening " GRUBENV " for writing");
++      perror ("Error fdopen of tmpfile failed");
++      unlink(tmp_filename);
+       return 1;     
+     }
+ 
+   ret = fwrite (env, 1, GRUBENV_SIZE, f);
+   if (ret != GRUBENV_SIZE)
+     {
+-      perror ("Error writing to " GRUBENV);
++      perror ("Error writing tmpfile");
++      unlink(tmp_filename);
+       return 1;     
+     }
+ 
+   ret = fflush (f);
+   if (ret)
+     {
+-      perror ("Error flushing " GRUBENV);
++      perror ("Error flushing tmpfile");
++      unlink(tmp_filename);
+       return 1;     
+     }
+ 
+-  fsync (fileno (f));
+-  fclose (f);
++  ret = fsync (fileno (f));
++  if (ret)
++    {
++      perror ("Error syncing tmpfile");
++      unlink(tmp_filename);
++      return 1;
++    }
++
++  ret = fclose (f);
++  if (ret)
++    {
++      perror ("Error closing tmpfile");
++      unlink(tmp_filename);
++      return 1;
++    }
++
++  /*
++   * And finally rename the tmpfile with the new env over the old env, the
++   * linux kernel guarantees that this is atomic (from a syscall pov).
++   */
++  ret = rename(tmp_filename, env_filename);
++  if (ret)
++    {
++      perror ("Error renaming tmpfile to " GRUBENV " failed");
++      unlink(tmp_filename);
++      return 1;
++    }
+ 
+   return 0;
+ }

0192-grub.d-Fix-boot_indeterminate-getting-set-on-boot_su.patch

@@ -0,0 +1,75 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Tue, 26 Nov 2019 09:51:41 +0100
+Subject: [PATCH] grub.d: Fix boot_indeterminate getting set on boot_success=0
+ boot
+
+The "grub.d: Split out boot success reset from menu auto hide script"
+not only moved the code to clear boot_success and boot_indeterminate
+but for some reason also mixed in some broken changes to the
+boot_indeterminate handling.
+
+The boot_indeterminate var is meant to suppress the boot menu after
+a reboot from either a selinux-relabel or offline-updates. These
+2 special boot scenarios do not set boot_success since there is no
+successfull interaction with the user. Instead they increment
+boot_indeterminate, and if it is 1 and only when it is 1, so the
+first reboot after a "special" boot we suppress the menu.
+
+To ensure that we do show the menu if we somehow get stuck in a
+"special" boot loop where we do special-boots without them
+incrementing boot_indeterminate, the code before the
+"grub.d: Split out boot success reset from menu auto hide script"
+commit would increment boot_indeterminate once when it is 1, so that
+even if the "special" boot reboot-loop immediately we would show the
+menu on the next boot.
+
+That commit broke this however, because it not only moves the code,
+it also changes it from only "incrementing" boot_indeterminate once to
+always incrementing it, except when boot_success == 1 (and we reset it).
+
+This broken behavior causes the following problem:
+
+1. Boot a broken kernel, system hangs, power-cycle
+2. boot_success now != 1, so we increment boot_indeterminate from 0
+   (unset!) to 1. User either simply tries again, or makes some changes
+   but the end-result still is a system hang, power-cycle
+3. Now boot_indeterminate==1 so we do not show the menu even though the
+   previous boot failed -> BAD
+
+This commit fixes this by restoring the behavior of setting
+boot_indeterminate to 2 when it was 1 before.
+
+Fixes: "grub.d: Split out boot success reset from menu auto hide script"
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ util/grub.d/10_reset_boot_success.in | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/util/grub.d/10_reset_boot_success.in b/util/grub.d/10_reset_boot_success.in
+index 6c88d933dde..737e1ae5b68 100644
+--- a/util/grub.d/10_reset_boot_success.in
++++ b/util/grub.d/10_reset_boot_success.in
+@@ -6,18 +6,18 @@
+ #
+ # The boot_success var needs to be set to 1 from userspace to mark a boot successful.
+ cat << EOF
+-insmod increment
+ # Hiding the menu is ok if last boot was ok or if this is a first boot attempt to boot the entry
+ if [ "\${boot_success}" = "1" -o "\${boot_indeterminate}" = "1" ]; then
+   set menu_hide_ok=1
+ else
+   set menu_hide_ok=0 
+ fi
+-# Reset boot_indeterminate after a successful boot, increment otherwise
++# Reset boot_indeterminate after a successful boot
+ if [ "\${boot_success}" = "1" ] ; then
+   set boot_indeterminate=0
+-else
+-  increment boot_indeterminate
++# Avoid boot_indeterminate causing the menu to be hidden more then once
++elif [ "\${boot_indeterminate}" = "1" ]; then
++  set boot_indeterminate=2
+ fi
+ # Reset boot_success for current boot 
+ set boot_success=0

0193-10_linux.in-Also-use-GRUB_CMDLINE_LINUX_DEFAULT-to-s.patch

@@ -0,0 +1,45 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Tue, 15 Oct 2019 09:08:25 +0200
+Subject: [PATCH] 10_linux.in: Also use GRUB_CMDLINE_LINUX_DEFAULT to set
+ kernelopts
+
+The GRUB documentation mentions that there are two variables to set the
+linux kernel cmdline: GRUB_CMDLINE_LINUX and GRUB_CMDLINE_LINUX_DEFAULT.
+
+The former is added to all the menuentry commands and the latter is not
+added to the recovery mode menu entries. But the blscfg module doesn't
+populate recovery entries from the BLS snippets, so the values set in the
+GRUB_CMDLINE_LINUX_DEFAULT variable should also be included in kernelopts.
+
+This is needed because the GRUB_CMDLINE_LINUX_DEFAULT option is mentioned
+in the GRUB documentation so users assume that the kernel cmdline options
+can be changed by setting this option and running the grub2-mkconfig tool.
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ util/grub.d/10_linux.in | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
+index 3919b8aff4e..9e015c2c134 100644
+--- a/util/grub.d/10_linux.in
++++ b/util/grub.d/10_linux.in
+@@ -118,7 +118,7 @@ if [ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]; then
+   populate_header_warn
+ 
+   cat << EOF
+-set default_kernelopts="root=${LINUX_ROOT_DEVICE} ro ${GRUB_CMDLINE_LINUX}"
++set default_kernelopts="root=${LINUX_ROOT_DEVICE} ro ${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
+ 
+ insmod blscfg
+ blscfg
+@@ -134,7 +134,7 @@ EOF
+           fi
+       fi
+ 
+-      ${grub_editenv} - set kernelopts="root=${LINUX_ROOT_DEVICE} ro ${GRUB_CMDLINE_LINUX}"
++      ${grub_editenv} - set kernelopts="root=${LINUX_ROOT_DEVICE} ro ${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
+       if [ -n "${GRUB_EARLY_INITRD_LINUX_CUSTOM}" ]; then
+           ${grub_editenv} - set early_initrd="${GRUB_EARLY_INITRD_LINUX_CUSTOM}"
+       fi

0194-Fix-savedefault-with-blscfg.patch

@@ -0,0 +1,50 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Fritz Elfert <fritz@fritz-elfert.de>
+Date: Sun, 12 Jan 2020 22:07:52 +0100
+Subject: [PATCH] Fix savedefault with blscfg
+
+The GRUB_SAVEDEFAULT option was ignored on a BLS configuration. Fix it by
+making the menu entries populated from the BLS files to call savedefault
+if a save_default environment variable has been set to "true".
+
+This variable is set by grub2-mkconfig to the value in GRUB_SAVEDEFAULT.
+---
+ grub-core/commands/blscfg.c | 5 ++++-
+ util/grub.d/10_linux.in     | 4 ++++
+ 2 files changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
+index 8c6dd91be10..f2c1fd0733d 100644
+--- a/grub-core/commands/blscfg.c
++++ b/grub-core/commands/blscfg.c
+@@ -821,11 +821,14 @@ static void create_entry (struct bls_entry *entry)
+       tmp = grub_stpcpy (tmp, "\n");
+     }
+ 
+-  src = grub_xasprintf ("load_video\n"
++  const char *sdval = grub_env_get("save_default");
++  bool savedefault = ((NULL != sdval) && (grub_strcmp(sdval, "true") == 0));
++  src = grub_xasprintf ("%sload_video\n"
+ 			"set gfxpayload=keep\n"
+ 			"insmod gzio\n"
+ 			"linux %s%s%s%s\n"
+ 			"%s",
++			savedefault ? "savedefault\n" : "",
+ 			GRUB_BOOT_DEVICE, clinux, options ? " " : "", options ? options : "",
+ 			initrd ? initrd : "");
+ 
+diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
+index 9e015c2c134..d5319300e04 100644
+--- a/util/grub.d/10_linux.in
++++ b/util/grub.d/10_linux.in
+@@ -138,6 +138,10 @@ EOF
+       if [ -n "${GRUB_EARLY_INITRD_LINUX_CUSTOM}" ]; then
+           ${grub_editenv} - set early_initrd="${GRUB_EARLY_INITRD_LINUX_CUSTOM}"
+       fi
++
++      if [ -n "${GRUB_SAVEDEFAULT}" ]; then
++          ${grub_editenv} - set save_default="${GRUB_SAVEDEFAULT}"
++      fi
+   fi
+ 
+   exit 0

0195-blscfg-add-a-space-char-when-appending-fields-for-va.patch

@@ -0,0 +1,76 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Tue, 26 Nov 2019 09:51:41 +0100
+Subject: [PATCH] blscfg: add a space char when appending fields for variable
+ expansion
+
+The GRUB variables are expanded and replaced by their values before adding
+menu entries, but they didn't include space characters after the values so
+the result was not correct.
+
+For the common case this wasn't a problem but it is if there are variables
+that are part of the values of other variables.
+
+Resolves: rhbz#1669252
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ grub-core/commands/blscfg.c | 31 ++++++++++++++++++-------------
+ 1 file changed, 18 insertions(+), 13 deletions(-)
+
+diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
+index f2c1fd0733d..1504be30e8e 100644
+--- a/grub-core/commands/blscfg.c
++++ b/grub-core/commands/blscfg.c
+@@ -593,26 +593,29 @@ static char **bls_make_list (struct bls_entry *entry, const char *key, int *num)
+ 
+ static char *field_append(bool is_var, char *buffer, char *start, char *end)
+ {
+-  char *temp = grub_strndup(start, end - start + 1);
+-  const char *field = temp;
++  char *tmp = grub_strndup(start, end - start + 1);
++  const char *field = tmp;
++  int term = is_var ? 2 : 1;
+ 
+   if (is_var) {
+-    field = grub_env_get (temp);
++    field = grub_env_get (tmp);
+     if (!field)
+       return buffer;
+   }
+ 
+-  if (!buffer) {
+-    buffer = grub_strdup(field);
+-    if (!buffer)
+-      return NULL;
+-  } else {
+-    buffer = grub_realloc (buffer, grub_strlen(buffer) + grub_strlen(field));
+-    if (!buffer)
+-      return NULL;
++  if (!buffer)
++    buffer = grub_zalloc (grub_strlen(field) + term);
++  else
++    buffer = grub_realloc (buffer, grub_strlen(buffer) + grub_strlen(field) + term);
+ 
+-    grub_stpcpy (buffer + grub_strlen(buffer), field);
+-  }
++  if (!buffer)
++    return NULL;
++
++  tmp = buffer + grub_strlen(buffer);
++  tmp = grub_stpcpy (tmp, field);
++
++  if (is_var)
++      tmp = grub_stpcpy (tmp, " ");
+ 
+   return buffer;
+ }
+@@ -642,6 +645,8 @@ static char *expand_val(char *value)
+ 	buffer = field_append(is_var, buffer, start, end);
+ 	is_var = false;
+ 	start = value;
++	if (*start == ' ')
++	  start++;
+       }
+     }
+ 

0196-blscfg-Add-support-for-sorting-the-plus-higher-than-.patch

@@ -0,0 +1,59 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Mon, 4 Nov 2019 17:33:30 +0100
+Subject: [PATCH] blscfg: Add support for sorting the plus ('+') higher than
+ base version
+
+Handle plus separator. Concept is the same as tilde, except that if one of
+the strings ends (base version), the other is considered as higher version.
+
+A plus character is used for example by the Linux kernel build system to
+denote that is the base version plus some changes on top of it.
+
+Currently for example rpmvercmp("5.3.0", "5.3.0+") will return 0 even when
+the two versions are not the same.
+
+Resolves: rhbz#1767395
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ grub-core/commands/blscfg.c | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
+index 1504be30e8e..286a5b88d12 100644
+--- a/grub-core/commands/blscfg.c
++++ b/grub-core/commands/blscfg.c
+@@ -163,8 +163,8 @@ static int vercmp(const char * a, const char * b)
+ 
+     /* loop through each version segment of str1 and str2 and compare them */
+     while (*one || *two) {
+-	while (*one && !grub_isalnum(*one) && *one != '~') one++;
+-	while (*two && !grub_isalnum(*two) && *two != '~') two++;
++	while (*one && !grub_isalnum(*one) && *one != '~' && *one != '+') one++;
++	while (*two && !grub_isalnum(*two) && *two != '~' && *two != '+') two++;
+ 
+ 	/* handle the tilde separator, it sorts before everything else */
+ 	if (*one == '~' || *two == '~') {
+@@ -175,6 +175,21 @@ static int vercmp(const char * a, const char * b)
+ 	    continue;
+ 	}
+ 
++	/*
++	 * Handle plus separator. Concept is the same as tilde,
++	 * except that if one of the strings ends (base version),
++	 * the other is considered as higher version.
++	 */
++	if (*one == '+' || *two == '+') {
++	    if (!*one) return -1;
++	    if (!*two) return 1;
++	    if (*one != '+') goto_return (1);
++	    if (*two != '+') goto_return (-1);
++	    one++;
++	    two++;
++	    continue;
++	}
++
+ 	/* If we ran to the end of either, we are finished with the loop */
+ 	if (!(*one && *two)) break;
+ 

0197-blscfg-Always-use-the-root-variable-to-search-for-BL.patch

@@ -0,0 +1,47 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Tue, 14 Jan 2020 17:41:29 +0100
+Subject: [PATCH] blscfg: Always use the root variable to search for BLS
+ snippets
+
+The boot and root variables are set by grub2-mkconfig to tell GRUB what
+are the devices and partitions used as the EFI System Partition (ESP)
+and to store the /boot directory (or used as the /boot mount point).
+
+But the boot variable is not needed anymore, this was added because the
+blscfg module used to search for the BLS snippets in the ESP, but was
+later changed to always search for the BLS files in /boot even for EFI.
+
+When doing that change, the logic was made backwards and so the boot
+variable is wrongly used for legacy BIOS. This only works because this
+is set to the same value as the root variable.
+
+So the correct thing to do is to always use the root variable to search
+the BLS snippets, since that is set to the partition that stores them.
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ grub-core/commands/blscfg.c | 6 ++----
+ 1 file changed, 2 insertions(+), 4 deletions(-)
+
+diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
+index 286a5b88d12..aa4e624905e 100644
+--- a/grub-core/commands/blscfg.c
++++ b/grub-core/commands/blscfg.c
+@@ -968,14 +968,12 @@ bls_load_entries (const char *path)
+   if (!devid) {
+ #ifdef GRUB_MACHINE_EMU
+     devid = "host";
+-#elif defined(GRUB_MACHINE_EFI)
++#else
+     devid = grub_env_get ("root");
+-#else
+-    devid = grub_env_get ("boot");
+ #endif
+     if (!devid)
+       return grub_error (GRUB_ERR_FILE_NOT_FOUND,
+-			 N_("variable `%s' isn't set"), "boot");
++			 N_("variable `%s' isn't set"), "root");
+   }
+ 
+   grub_dprintf ("blscfg", "opening %s\n", devid);

0198-blscfg-return-NULL-instead-of-a-zero-length-array-in.patch

@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Mon, 16 Mar 2020 13:51:45 +0100
+Subject: [PATCH] blscfg: return NULL instead of a zero-length array in
+ bls_make_list()
+
+The bls_make_list() function returns a list of all the values for a given
+key and if there is none a NULL pointer should be returned. But currently
+is returnin a zero-length array instead.
+
+This makes the callers to wrongly assume that there are values for a key
+and populate wrong menu entries. For example menu entries are populated
+with an initrd command even if there is no initrd fiel in the BLS file.
+
+Resolves: rhbz#1806022
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ grub-core/commands/blscfg.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
+index aa4e624905e..df6947f58cd 100644
+--- a/grub-core/commands/blscfg.c
++++ b/grub-core/commands/blscfg.c
+@@ -600,6 +600,12 @@ static char **bls_make_list (struct bls_entry *entry, const char *key, int *num)
+       list[nlist] = NULL;
+   }
+ 
++  if (!nlist)
++    {
++      grub_free (list);
++      return NULL;
++    }
++
+   if (num)
+     *num = nlist;
+ 

0199-grub-switch-to-blscfg-Update-grub2-binary-in-ESP-for.patch

@@ -0,0 +1,37 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Thu, 26 Mar 2020 15:08:30 +0100
+Subject: [PATCH] grub-switch-to-blscfg: Update grub2 binary in ESP for OSTree
+ systems
+
+The grub2 EFI binary in the ESP isn't updated as a part of an OSTree update
+transaction. So let's make the script to update this and also create a file
+to indicate that the installed version has support for the blscfg module.
+
+Related: rhbz#1751272
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ util/grub-switch-to-blscfg.in | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/util/grub-switch-to-blscfg.in b/util/grub-switch-to-blscfg.in
+index 49b3985fadb..a05a8d98554 100644
+--- a/util/grub-switch-to-blscfg.in
++++ b/util/grub-switch-to-blscfg.in
+@@ -266,6 +266,15 @@ copy_bls() {
+     fi
+ }
+ 
++# The grub2 EFI binary is not copied to the ESP as a part of an ostree
++# transaction. Make sure a grub2 version with BLS support is installed.
++if test -f /run/ostree-booted && test -d /sys/firmware/efi/efivars/; then
++    grub_binary="$(find /usr/lib/ostree-boot/efi/EFI/${EFIDIR}/ -name grub*.efi)"
++    cp ${grub_binary} ${grubdir} || exit 1
++    # Create a hidden file to indicate that grub2 now has BLS support.
++    touch /boot/grub2/.grub2-blscfg-supported
++fi
++
+ GENERATE=0
+ if grep '^GRUB_ENABLE_BLSCFG=.*' "${etcdefaultgrub}" \
+         | grep -vq '^GRUB_ENABLE_BLSCFG="*true"*\s*$' ; then

0200-grub-switch-to-blscfg-Only-mark-GRUB-as-BLS-supporte.patch

@@ -0,0 +1,37 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Thu, 2 Apr 2020 11:07:24 +0200
+Subject: [PATCH] grub-switch-to-blscfg: Only mark GRUB as BLS supported if
+ blsdir isn't set
+
+If the user set the blsdir environemnt variable to a path that is not the
+default where ostree writes the BLS snippets, the blscfg module won't be
+able to parse them and can lead to not having any menu entries on boot.
+
+So to minimize the risk of things going wrong when dropping the 15_ostree
+script used by ostree to create the menu entries, only mark the bootloader
+as BLS supported if the blsdir variable has not been set.
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ util/grub-switch-to-blscfg.in | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/util/grub-switch-to-blscfg.in b/util/grub-switch-to-blscfg.in
+index a05a8d98554..4bbed8e4fe9 100644
+--- a/util/grub-switch-to-blscfg.in
++++ b/util/grub-switch-to-blscfg.in
+@@ -267,8 +267,11 @@ copy_bls() {
+ }
+ 
+ # The grub2 EFI binary is not copied to the ESP as a part of an ostree
+-# transaction. Make sure a grub2 version with BLS support is installed.
+-if test -f /run/ostree-booted && test -d /sys/firmware/efi/efivars/; then
++# transaction. Make sure a grub2 version with BLS support is installed
++# but only do this if the blsdir is not set, to make sure that the BLS
++# parsing module will search for the BLS snippets in the default path.
++if test -f /run/ostree-booted && test -d /sys/firmware/efi/efivars && \
++   ! ${grub_editenv} - list | grep -q blsdir; then
+     grub_binary="$(find /usr/lib/ostree-boot/efi/EFI/${EFIDIR}/ -name grub*.efi)"
+     cp ${grub_binary} ${grubdir} || exit 1
+     # Create a hidden file to indicate that grub2 now has BLS support.

0201-grub-switch-to-blscfg-Use-install-to-copy-GRUB-binar.patch

@@ -0,0 +1,46 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Thu, 16 Apr 2020 18:53:03 +0200
+Subject: [PATCH] grub-switch-to-blscfg: Use install to copy GRUB binary,
+ modules and config
+
+By default the cp command truncates the destination before copying from the
+source, so if interrupted it can lead to a file that's half written.
+
+This behavior can be modified using the --remove-destination option, but is
+usually a better choice to use the install tool for this. So let's do that.
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ util/grub-switch-to-blscfg.in | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/util/grub-switch-to-blscfg.in b/util/grub-switch-to-blscfg.in
+index 4bbed8e4fe9..3333a620c28 100644
+--- a/util/grub-switch-to-blscfg.in
++++ b/util/grub-switch-to-blscfg.in
+@@ -273,7 +273,7 @@ copy_bls() {
+ if test -f /run/ostree-booted && test -d /sys/firmware/efi/efivars && \
+    ! ${grub_editenv} - list | grep -q blsdir; then
+     grub_binary="$(find /usr/lib/ostree-boot/efi/EFI/${EFIDIR}/ -name grub*.efi)"
+-    cp ${grub_binary} ${grubdir} || exit 1
++    install -m 700 ${grub_binary} ${grubdir} || exit 1
+     # Create a hidden file to indicate that grub2 now has BLS support.
+     touch /boot/grub2/.grub2-blscfg-supported
+ fi
+@@ -307,13 +307,13 @@ if [ "${GENERATE}" -eq 1 ] ; then
+ 
+     if [ -n "${mod_dir}" ]; then
+ 	for mod in blscfg increment; do
+-	    cp ${prefix}/lib/grub/${mod_dir}/${mod}.mod ${grubdir}/$mod_dir/ || exit 1
++	    install -m 700 ${prefix}/lib/grub/${mod_dir}/${mod}.mod ${grubdir}/$mod_dir/ || exit 1
+ 	done
+     fi
+ 
+     cp -af "${GRUB_CONFIG_FILE}" "${GRUB_CONFIG_FILE}${backupsuffix}"
+     if ! grub2-mkconfig -o "${GRUB_CONFIG_FILE}" ; then
+-        cp -af "${GRUB_CONFIG_FILE}${backupsuffix}" "${GRUB_CONFIG_FILE}"
++        install -m 700 "${GRUB_CONFIG_FILE}${backupsuffix}" "${GRUB_CONFIG_FILE}"
+         sed -i"${backupsuffix}" \
+             -e 's,^GRUB_ENABLE_BLSCFG=.*,GRUB_ENABLE_BLSCFG=false,' \
+             "${etcdefaultgrub}"

0202-10_linux.in-Enable-BLS-configuration-if-new-kernel-p.patch

@@ -0,0 +1,39 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Thu, 16 Apr 2020 21:11:04 +0200
+Subject: [PATCH] 10_linux.in: Enable BLS configuration if new-kernel-pkg isn't
+ present
+
+Currently if the the GRUB_ENABLE_BLSCFG option in /etc/default/grub hasn't
+been set, the 10_linux script will generate a GRUB configuration that does
+not include the blscfg command to populate the menu entries from BLS files.
+
+But on kernel install the /usr/lib/kernel/install.d/20-grub.install script
+will only add menuentry commands to the GRUB config file if the old grubby
+tool and new-kernel-pkg script are installed.
+
+So a configuration with the GRUB_ENABLE_BLSCFG option will lead to a setup
+where new kernel entries are not added. Make a BLS config the default if
+that option wasn't set and the new-kernel-pkg script is not present.
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ util/grub.d/10_linux.in | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
+index d5319300e04..b99eaa8f203 100644
+--- a/util/grub.d/10_linux.in
++++ b/util/grub.d/10_linux.in
+@@ -96,6 +96,11 @@ cat <<EOF
+ EOF
+ }
+ 
++# Make BLS the default if GRUB_ENABLE_BLSCFG was not set and grubby is not installed.
++if [ -z "${GRUB_ENABLE_BLSCFG}" ] && [ -z "$(which new-kernel-pkg 2> /dev/null)" ]; then
++	  GRUB_ENABLE_BLSCFG="true"
++fi
++
+ if [ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]; then
+   if [ x$dirname = x/ ]; then
+     if [ -z "${prepare_root_cache}" ]; then

0203-envblk-Fix-buffer-overrun-when-attempting-to-shrink-.patch

@@ -0,0 +1,60 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Tue, 12 May 2020 01:00:51 +0200
+Subject: [PATCH] envblk: Fix buffer overrun when attempting to shrink a
+ variable value
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+If an existing variable is set with a value whose length is smaller than
+the current value, a memory corruption can happen due copying padding '#'
+characters outside of the environment block buffer.
+
+This is caused by a wrong calculation of the previous free space position
+after moving backward the characters that followed the old variable value.
+
+That position is calculated to fill the remaining of the buffer with the
+padding '#' characters. But since isn't calculated correctly, it can lead
+to copies outside of the buffer.
+
+The issue can be reproduced by creating a variable with a large value and
+then try to set a new value that is much smaller:
+
+$ grub2-editenv --version
+grub2-editenv (GRUB) 2.04
+
+$ grub2-editenv env create
+
+$ grub2-editenv env set a="$(for i in {1..500}; do var="b$var"; done; echo $var)"
+
+$ wc -c env
+1024 grubenv
+
+$ grub2-editenv env set a="$(for i in {1..50}; do var="b$var"; done; echo $var)"
+malloc(): corrupted top size
+Aborted (core dumped)
+
+$ wc -c env
+0 grubenv
+
+Reported-by: Renaud Métrich <rmetrich@redhat.com>
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+Patch-cc: Daniel Kiper <daniel.kiper@oracle.com>
+---
+ grub-core/lib/envblk.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/grub-core/lib/envblk.c b/grub-core/lib/envblk.c
+index f89d86d4e8d..874506da169 100644
+--- a/grub-core/lib/envblk.c
++++ b/grub-core/lib/envblk.c
+@@ -143,7 +143,7 @@ grub_envblk_set (grub_envblk_t envblk, const char *name, const char *value)
+               /* Move the following characters backward, and fill the new
+                  space with harmless characters.  */
+               grub_memmove (p + vl, p + len, pend - (p + len));
+-              grub_memset (space + len - vl, '#', len - vl);
++              grub_memset (space - (len - vl), '#', len - vl);
+             }
+           else
+             /* Move the following characters forward.  */

0204-Forbid-the-devicetree-command-when-Secure-Boot-is-en.patch

@@ -0,0 +1,71 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Wed, 24 Apr 2019 10:03:04 -0400
+Subject: [PATCH] Forbid the "devicetree" command when Secure Boot is enabled.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+---
+ grub-core/loader/arm/linux.c | 12 ++++++++++++
+ grub-core/loader/efi/fdt.c   | 12 ++++++++++++
+ 2 files changed, 24 insertions(+)
+
+diff --git a/grub-core/loader/arm/linux.c b/grub-core/loader/arm/linux.c
+index b4f609d2d01..5f5723b4b8f 100644
+--- a/grub-core/loader/arm/linux.c
++++ b/grub-core/loader/arm/linux.c
+@@ -28,6 +28,7 @@
+ #include <grub/cpu/linux.h>
+ #include <grub/lib/cmdline.h>
+ #include <grub/linux.h>
++#include <grub/efi/sb.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -467,6 +468,17 @@ grub_cmd_devicetree (grub_command_t cmd __attribute__ ((unused)),
+   if (argc != 1)
+     return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ 
++  if (grub_efi_secure_boot ())
++    {
++#if 0
++      /* This is an error, but grub2-mkconfig still generates a pile of
++       * insmod commands, so emitting it would be mostly just obnoxious. */
++      grub_error (GRUB_ERR_ACCESS_DENIED,
++		  "Secure Boot forbids loading devicetree from %s", filename);
++#endif
++      return 0;
++    }
++
+   dtb = grub_file_open (argv[0]);
+   if (!dtb)
+     return grub_errno;
+diff --git a/grub-core/loader/efi/fdt.c b/grub-core/loader/efi/fdt.c
+index cecd617dccc..2c14a11fa6b 100644
+--- a/grub-core/loader/efi/fdt.c
++++ b/grub-core/loader/efi/fdt.c
+@@ -25,6 +25,7 @@
+ #include <grub/efi/efi.h>
+ #include <grub/efi/fdtload.h>
+ #include <grub/efi/memory.h>
++#include <grub/efi/sb.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -125,6 +126,17 @@ grub_cmd_devicetree (grub_command_t cmd __attribute__ ((unused)),
+       return GRUB_ERR_NONE;
+     }
+ 
++  if (grub_efi_secure_boot ())
++    {
++#if 0
++      /* This is an error, but grub2-mkconfig still generates a pile of
++       * insmod commands, so emitting it would be mostly just obnoxious. */
++      grub_error (GRUB_ERR_ACCESS_DENIED,
++		  "Secure Boot forbids loading devicetree from %s", filename);
++#endif
++      return 0;
++    }
++
+   dtb = grub_file_open (argv[0]);
+   if (!dtb)
+     goto out;

0205-yylex-Make-lexer-fatal-errors-actually-be-fatal.patch

@@ -0,0 +1,67 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Wed, 15 Apr 2020 15:45:02 -0400
+Subject: [PATCH] yylex: Make lexer fatal errors actually be fatal
+
+When presented with a command that can't be tokenized to anything
+smaller than YYLMAX characters, the parser calls YY_FATAL_ERROR(errmsg),
+expecting that will stop further processing, as such:
+
+  #define YY_DO_BEFORE_ACTION \
+        yyg->yytext_ptr = yy_bp; \
+        yyleng = (int) (yy_cp - yy_bp); \
+        yyg->yy_hold_char = *yy_cp; \
+        *yy_cp = '\0'; \
+        if ( yyleng >= YYLMAX ) \
+                YY_FATAL_ERROR( "token too large, exceeds YYLMAX" ); \
+        yy_flex_strncpy( yytext, yyg->yytext_ptr, yyleng + 1 , yyscanner); \
+        yyg->yy_c_buf_p = yy_cp;
+
+The code flex generates expects that YY_FATAL_ERROR() will either return
+for it or do some form of longjmp(), or handle the error in some way at
+least, and so the strncpy() call isn't in an "else" clause, and thus if
+YY_FATAL_ERROR() is *not* actually fatal, it does the call with the
+questionable limit, and predictable results ensue.
+
+Unfortunately, our implementation of YY_FATAL_ERROR() is:
+
+   #define YY_FATAL_ERROR(msg)                     \
+     do {                                          \
+       grub_printf (_("fatal error: %s\n"), _(msg));     \
+     } while (0)
+
+The same pattern exists in yyless(), and similar problems exist in users
+of YY_INPUT(), several places in the main parsing loop,
+yy_get_next_buffer(), yy_load_buffer_state(), yyensure_buffer_stack,
+yy_scan_buffer(), etc.
+
+All of these callers expect YY_FATAL_ERROR() to actually be fatal, and
+the things they do if it returns after calling it are wildly unsafe.
+
+Fixes: CVE-2020-10713
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: 926df817dc8
+---
+ grub-core/script/yylex.l | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/script/yylex.l b/grub-core/script/yylex.l
+index 7b44c37b76f..b7203c82309 100644
+--- a/grub-core/script/yylex.l
++++ b/grub-core/script/yylex.l
+@@ -37,11 +37,11 @@
+ 
+ /* 
+  * As we don't have access to yyscanner, we cannot do much except to
+- * print the fatal error.
++ * print the fatal error and exit.
+  */
+ #define YY_FATAL_ERROR(msg)                     \
+   do {                                          \
+-    grub_printf (_("fatal error: %s\n"), _(msg));     \
++    grub_fatal (_("fatal error: %s\n"), _(msg));\
+   } while (0)
+ 
+ #define COPY(str, hint)                         \

0206-safemath-Add-some-arithmetic-primitives-that-check-f.patch

@@ -0,0 +1,124 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Mon, 15 Jun 2020 10:58:42 -0400
+Subject: [PATCH] safemath: Add some arithmetic primitives that check for
+ overflow
+
+This adds a new header, include/grub/safemath.h, that includes easy to
+use wrappers for __builtin_{add,sub,mul}_overflow() declared like:
+
+  bool OP(a, b, res)
+
+where OP is grub_add, grub_sub or grub_mul. OP() returns true in the
+case where the operation would overflow and res is not modified.
+Otherwise, false is returned and the operation is executed.
+
+These arithmetic primitives require newer compiler versions. So, bump
+these requirements in the INSTALL file too.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: de1c315841a
+---
+ include/grub/compiler.h |  8 ++++++++
+ include/grub/safemath.h | 37 +++++++++++++++++++++++++++++++++++++
+ INSTALL                 | 22 ++--------------------
+ 3 files changed, 47 insertions(+), 20 deletions(-)
+ create mode 100644 include/grub/safemath.h
+
+diff --git a/include/grub/compiler.h b/include/grub/compiler.h
+index 9859ff4cc79..ebafec68957 100644
+--- a/include/grub/compiler.h
++++ b/include/grub/compiler.h
+@@ -48,6 +48,14 @@
+ #  define WARN_UNUSED_RESULT
+ #endif
+ 
++#if defined(__clang__) && defined(__clang_major__) && defined(__clang_minor__)
++#  define CLANG_PREREQ(maj,min) \
++          ((__clang_major__ > (maj)) || \
++	   (__clang_major__ == (maj) && __clang_minor__ >= (min)))
++#else
++#  define CLANG_PREREQ(maj,min) 0
++#endif
++
+ #define UNUSED __attribute__((__unused__))
+ 
+ #endif /* ! GRUB_COMPILER_HEADER */
+diff --git a/include/grub/safemath.h b/include/grub/safemath.h
+new file mode 100644
+index 00000000000..c17b89bba17
+--- /dev/null
++++ b/include/grub/safemath.h
+@@ -0,0 +1,37 @@
++/*
++ *  GRUB  --  GRand Unified Bootloader
++ *  Copyright (C) 2020  Free Software Foundation, Inc.
++ *
++ *  GRUB is free software: you can redistribute it and/or modify
++ *  it under the terms of the GNU General Public License as published by
++ *  the Free Software Foundation, either version 3 of the License, or
++ *  (at your option) any later version.
++ *
++ *  GRUB is distributed in the hope that it will be useful,
++ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
++ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ *  GNU General Public License for more details.
++ *
++ *  You should have received a copy of the GNU General Public License
++ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
++ *
++ *  Arithmetic operations that protect against overflow.
++ */
++
++#ifndef GRUB_SAFEMATH_H
++#define GRUB_SAFEMATH_H 1
++
++#include <grub/compiler.h>
++
++/* These appear in gcc 5.1 and clang 3.8. */
++#if GNUC_PREREQ(5, 1) || CLANG_PREREQ(3, 8)
++
++#define grub_add(a, b, res)	__builtin_add_overflow(a, b, res)
++#define grub_sub(a, b, res)	__builtin_sub_overflow(a, b, res)
++#define grub_mul(a, b, res)	__builtin_mul_overflow(a, b, res)
++
++#else
++#error gcc 5.1 or newer or clang 3.8 or newer is required
++#endif
++
++#endif /* GRUB_SAFEMATH_H */
+diff --git a/INSTALL b/INSTALL
+index f3c20edc844..f8bd9116480 100644
+--- a/INSTALL
++++ b/INSTALL
+@@ -11,27 +11,9 @@ GRUB depends on some software packages installed into your system. If
+ you don't have any of them, please obtain and install them before
+ configuring the GRUB.
+ 
+-* GCC 4.1.3 or later
+-  Note: older versions may work but support is limited
+-
+-  Experimental support for clang 3.3 or later (results in much bigger binaries)
++* GCC 5.1.0 or later
++  Experimental support for clang 3.8.0 or later (results in much bigger binaries)
+   for i386, x86_64, arm (including thumb), arm64, mips(el), powerpc, sparc64
+-  Note: clang 3.2 or later works for i386 and x86_64 targets but results in
+-        much bigger binaries.
+-	earlier versions not tested
+-  Note: clang 3.2 or later works for arm
+-	earlier versions not tested
+-  Note: clang on arm64 is not supported due to
+-	https://llvm.org/bugs/show_bug.cgi?id=26030
+-  Note: clang 3.3 or later works for mips(el)
+-	earlier versions fail to generate .reginfo and hence gprel relocations
+-	fail.
+-  Note: clang 3.2 or later works for powerpc
+-	earlier versions not tested
+-  Note: clang 3.5 or later works for sparc64
+-        earlier versions return "error: unable to interface with target machine"
+-  Note: clang has no support for ia64 and hence you can't compile GRUB
+-	for ia64 with clang
+ * GNU Make
+ * GNU Bison 2.3 or later
+ * GNU gettext 0.17 or later

0207-calloc-Make-sure-we-always-have-an-overflow-checking.patch

@@ -0,0 +1,240 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Mon, 15 Jun 2020 12:15:29 -0400
+Subject: [PATCH] calloc: Make sure we always have an overflow-checking
+ calloc() available
+
+This tries to make sure that everywhere in this source tree, we always have
+an appropriate version of calloc() (i.e. grub_calloc(), xcalloc(), etc.)
+available, and that they all safely check for overflow and return NULL when
+it would occur.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: 79e51ab7a9a
+---
+ grub-core/kern/emu/misc.c          | 12 ++++++++++++
+ grub-core/kern/emu/mm.c            | 10 ++++++++++
+ grub-core/kern/mm.c                | 40 ++++++++++++++++++++++++++++++++++++++
+ grub-core/lib/libgcrypt_wrap/mem.c | 11 +++++++++--
+ grub-core/lib/posix_wrap/stdlib.h  |  8 +++++++-
+ include/grub/emu/misc.h            |  1 +
+ include/grub/mm.h                  |  6 ++++++
+ 7 files changed, 85 insertions(+), 3 deletions(-)
+
+diff --git a/grub-core/kern/emu/misc.c b/grub-core/kern/emu/misc.c
+index 9367caf763c..0c68e8b3a46 100644
+--- a/grub-core/kern/emu/misc.c
++++ b/grub-core/kern/emu/misc.c
+@@ -84,6 +84,18 @@ grub_util_error (const char *fmt, ...)
+   grub_exit (1);
+ }
+ 
++void *
++xcalloc (grub_size_t nmemb, grub_size_t size)
++{
++  void *p;
++
++  p = calloc (nmemb, size);
++  if (!p)
++    grub_util_error ("%s", _("out of memory"));
++
++  return p;
++}
++
+ void *
+ xmalloc (grub_size_t size)
+ {
+diff --git a/grub-core/kern/emu/mm.c b/grub-core/kern/emu/mm.c
+index f262e95e388..145b01d3719 100644
+--- a/grub-core/kern/emu/mm.c
++++ b/grub-core/kern/emu/mm.c
+@@ -25,6 +25,16 @@
+ #include <string.h>
+ #include <grub/i18n.h>
+ 
++void *
++grub_calloc (grub_size_t nmemb, grub_size_t size)
++{
++  void *ret;
++  ret = calloc (nmemb, size);
++  if (!ret)
++    grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
++  return ret;
++}
++
+ void *
+ grub_malloc (grub_size_t size)
+ {
+diff --git a/grub-core/kern/mm.c b/grub-core/kern/mm.c
+index 002cbfa4f3d..80d0720d005 100644
+--- a/grub-core/kern/mm.c
++++ b/grub-core/kern/mm.c
+@@ -67,8 +67,10 @@
+ #include <grub/dl.h>
+ #include <grub/i18n.h>
+ #include <grub/mm_private.h>
++#include <grub/safemath.h>
+ 
+ #ifdef MM_DEBUG
++# undef grub_calloc
+ # undef grub_malloc
+ # undef grub_zalloc
+ # undef grub_realloc
+@@ -375,6 +377,30 @@ grub_memalign (grub_size_t align, grub_size_t size)
+   return 0;
+ }
+ 
++/*
++ * Allocate NMEMB instances of SIZE bytes and return the pointer, or error on
++ * integer overflow.
++ */
++void *
++grub_calloc (grub_size_t nmemb, grub_size_t size)
++{
++  void *ret;
++  grub_size_t sz = 0;
++
++  if (grub_mul (nmemb, size, &sz))
++    {
++      grub_error (GRUB_ERR_OUT_OF_RANGE, N_("overflow is detected"));
++      return NULL;
++    }
++
++  ret = grub_memalign (0, sz);
++  if (!ret)
++    return NULL;
++
++  grub_memset (ret, 0, sz);
++  return ret;
++}
++
+ /* Allocate SIZE bytes and return the pointer.  */
+ void *
+ grub_malloc (grub_size_t size)
+@@ -561,6 +587,20 @@ grub_mm_dump (unsigned lineno)
+   grub_printf ("\n");
+ }
+ 
++void *
++grub_debug_calloc (const char *file, int line, grub_size_t nmemb, grub_size_t size)
++{
++  void *ptr;
++
++  if (grub_mm_debug)
++    grub_printf ("%s:%d: calloc (0x%" PRIxGRUB_SIZE ", 0x%" PRIxGRUB_SIZE ") = ",
++		 file, line, size);
++  ptr = grub_calloc (nmemb, size);
++  if (grub_mm_debug)
++    grub_printf ("%p\n", ptr);
++  return ptr;
++}
++
+ void *
+ grub_debug_malloc (const char *file, int line, grub_size_t size)
+ {
+diff --git a/grub-core/lib/libgcrypt_wrap/mem.c b/grub-core/lib/libgcrypt_wrap/mem.c
+index beeb661a3c8..74c6eafe525 100644
+--- a/grub-core/lib/libgcrypt_wrap/mem.c
++++ b/grub-core/lib/libgcrypt_wrap/mem.c
+@@ -4,6 +4,7 @@
+ #include <grub/crypto.h>
+ #include <grub/dl.h>
+ #include <grub/env.h>
++#include <grub/safemath.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -36,7 +37,10 @@ void *
+ gcry_xcalloc (size_t n, size_t m)
+ {
+   void *ret;
+-  ret = grub_zalloc (n * m);
++  size_t sz;
++  if (grub_mul (n, m, &sz))
++    grub_fatal ("gcry_xcalloc would overflow");
++  ret = grub_zalloc (sz);
+   if (!ret)
+     grub_fatal ("gcry_xcalloc failed");
+   return ret;
+@@ -56,7 +60,10 @@ void *
+ gcry_xcalloc_secure (size_t n, size_t m)
+ {
+   void *ret;
+-  ret = grub_zalloc (n * m);
++  size_t sz;
++  if (grub_mul (n, m, &sz))
++    grub_fatal ("gcry_xcalloc would overflow");
++  ret = grub_zalloc (sz);
+   if (!ret)
+     grub_fatal ("gcry_xcalloc failed");
+   return ret;
+diff --git a/grub-core/lib/posix_wrap/stdlib.h b/grub-core/lib/posix_wrap/stdlib.h
+index 3b46f47ff50..7a8d385e973 100644
+--- a/grub-core/lib/posix_wrap/stdlib.h
++++ b/grub-core/lib/posix_wrap/stdlib.h
+@@ -21,6 +21,7 @@
+ 
+ #include <grub/mm.h>
+ #include <grub/misc.h>
++#include <grub/safemath.h>
+ 
+ static inline void 
+ free (void *ptr)
+@@ -37,7 +38,12 @@ malloc (grub_size_t size)
+ static inline void *
+ calloc (grub_size_t size, grub_size_t nelem)
+ {
+-  return grub_zalloc (size * nelem);
++  grub_size_t sz;
++
++  if (grub_mul (size, nelem, &sz))
++    return NULL;
++
++  return grub_zalloc (sz);
+ }
+ 
+ static inline void *
+diff --git a/include/grub/emu/misc.h b/include/grub/emu/misc.h
+index 1ca4c78de97..577fdab45fd 100644
+--- a/include/grub/emu/misc.h
++++ b/include/grub/emu/misc.h
+@@ -54,6 +54,7 @@ grub_util_device_is_mapped (const char *dev);
+ #define GRUB_HOST_PRIxLONG_LONG "llx"
+ #endif
+ 
++void * EXPORT_FUNC(xcalloc) (grub_size_t nmemb, grub_size_t size) WARN_UNUSED_RESULT;
+ void * EXPORT_FUNC(xmalloc) (grub_size_t size) WARN_UNUSED_RESULT;
+ void * EXPORT_FUNC(xrealloc) (void *ptr, grub_size_t size) WARN_UNUSED_RESULT;
+ char * EXPORT_FUNC(xstrdup) (const char *str) WARN_UNUSED_RESULT;
+diff --git a/include/grub/mm.h b/include/grub/mm.h
+index 28e2e53eb32..9c38dd3ca5d 100644
+--- a/include/grub/mm.h
++++ b/include/grub/mm.h
+@@ -29,6 +29,7 @@
+ #endif
+ 
+ void grub_mm_init_region (void *addr, grub_size_t size);
++void *EXPORT_FUNC(grub_calloc) (grub_size_t nmemb, grub_size_t size);
+ void *EXPORT_FUNC(grub_malloc) (grub_size_t size);
+ void *EXPORT_FUNC(grub_zalloc) (grub_size_t size);
+ void EXPORT_FUNC(grub_free) (void *ptr);
+@@ -48,6 +49,9 @@ extern int EXPORT_VAR(grub_mm_debug);
+ void grub_mm_dump_free (void);
+ void grub_mm_dump (unsigned lineno);
+ 
++#define grub_calloc(nmemb, size)	\
++  grub_debug_calloc (GRUB_FILE, __LINE__, nmemb, size)
++
+ #define grub_malloc(size)	\
+   grub_debug_malloc (GRUB_FILE, __LINE__, size)
+ 
+@@ -63,6 +67,8 @@ void grub_mm_dump (unsigned lineno);
+ #define grub_free(ptr)	\
+   grub_debug_free (GRUB_FILE, __LINE__, ptr)
+ 
++void *EXPORT_FUNC(grub_debug_calloc) (const char *file, int line,
++				      grub_size_t nmemb, grub_size_t size);
+ void *EXPORT_FUNC(grub_debug_malloc) (const char *file, int line,
+ 				      grub_size_t size);
+ void *EXPORT_FUNC(grub_debug_zalloc) (const char *file, int line,

0210-iso9660-Don-t-leak-memory-on-realloc-failures.patch

@@ -0,0 +1,66 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Sat, 4 Jul 2020 12:25:09 -0400
+Subject: [PATCH] iso9660: Don't leak memory on realloc() failures
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: f2bd30b2fe7
+---
+ grub-core/fs/iso9660.c | 24 ++++++++++++++++++++----
+ 1 file changed, 20 insertions(+), 4 deletions(-)
+
+diff --git a/grub-core/fs/iso9660.c b/grub-core/fs/iso9660.c
+index f45841e2b47..6fc9302bce3 100644
+--- a/grub-core/fs/iso9660.c
++++ b/grub-core/fs/iso9660.c
+@@ -533,14 +533,20 @@ add_part (struct iterate_dir_ctx *ctx,
+ {
+   int size = ctx->symlink ? grub_strlen (ctx->symlink) : 0;
+   grub_size_t sz;
++  char *new;
+ 
+   if (grub_add (size, len2, &sz) ||
+       grub_add (sz, 1, &sz))
+     return;
+ 
+-  ctx->symlink = grub_realloc (ctx->symlink, sz);
+-  if (! ctx->symlink)
+-    return;
++  new = grub_realloc (ctx->symlink, sz);
++  if (!new)
++    {
++      grub_free (ctx->symlink);
++      ctx->symlink = NULL;
++      return;
++    }
++  ctx->symlink = new;
+ 
+   grub_memcpy (ctx->symlink + size, part, len2);
+   ctx->symlink[size + len2] = 0;  
+@@ -634,7 +640,12 @@ susp_iterate_dir (struct grub_iso9660_susp_entry *entry,
+ 		   is the length.  Both are part of the `Component
+ 		   Record'.  */
+ 		if (ctx->symlink && !ctx->was_continue)
+-		  add_part (ctx, "/", 1);
++		  {
++		    add_part (ctx, "/", 1);
++		    if (grub_errno)
++		      return grub_errno;
++		  }
++
+ 		add_part (ctx, (char *) &entry->data[pos + 2],
+ 			  entry->data[pos + 1]);
+ 		ctx->was_continue = (entry->data[pos] & 1);
+@@ -653,6 +664,11 @@ susp_iterate_dir (struct grub_iso9660_susp_entry *entry,
+ 	      add_part (ctx, "/", 1);
+ 	      break;
+ 	    }
++
++	  /* Check if grub_realloc() failed in add_part(). */
++	  if (grub_errno)
++	    return grub_errno;
++
+ 	  /* In pos + 1 the length of the `Component Record' is
+ 	     stored.  */
+ 	  pos += entry->data[pos + 1] + 2;

0211-font-Do-not-load-more-than-one-NAME-section.patch

@@ -0,0 +1,35 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Daniel Kiper <daniel.kiper@oracle.com>
+Date: Tue, 7 Jul 2020 15:36:26 +0200
+Subject: [PATCH] font: Do not load more than one NAME section
+
+The GRUB font file can have one NAME section only. Though if somebody
+crafts a broken font file with many NAME sections and loads it then the
+GRUB leaks memory. So, prevent against that by loading first NAME
+section and failing in controlled way on following one.
+
+Reported-by: Chris Coulson <chris.coulson@canonical.com>
+Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
+Reviewed-by: Jan Setje-Eilers <jan.setjeeilers@oracle.com>
+Upstream-commit-id: 482814113dc
+---
+ grub-core/font/font.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/grub-core/font/font.c b/grub-core/font/font.c
+index d63354fb51b..a7b955a1a74 100644
+--- a/grub-core/font/font.c
++++ b/grub-core/font/font.c
+@@ -532,6 +532,12 @@ grub_font_load (const char *filename)
+       if (grub_memcmp (section.name, FONT_FORMAT_SECTION_NAMES_FONT_NAME,
+ 		       sizeof (FONT_FORMAT_SECTION_NAMES_FONT_NAME) - 1) == 0)
+ 	{
++	  if (font->name != NULL)
++	    {
++	      grub_error (GRUB_ERR_BAD_FONT, "invalid font file: too many NAME sections");
++	      goto fail;
++	    }
++
+ 	  font->name = read_section_as_string (&section);
+ 	  if (!font->name)
+ 	    goto fail;

0212-gfxmenu-Fix-double-free-in-load_image.patch

@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alexey Makhalov <amakhalov@vmware.com>
+Date: Wed, 8 Jul 2020 20:41:56 +0000
+Subject: [PATCH] gfxmenu: Fix double free in load_image()
+
+self->bitmap should be zeroed after free. Otherwise, there is a chance
+to double free (USE_AFTER_FREE) it later in rescale_image().
+
+Fixes: CID 292472
+
+Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: 5d3e84b15a4
+---
+ grub-core/gfxmenu/gui_image.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/grub-core/gfxmenu/gui_image.c b/grub-core/gfxmenu/gui_image.c
+index 29784ed2d9a..6b2e976f16e 100644
+--- a/grub-core/gfxmenu/gui_image.c
++++ b/grub-core/gfxmenu/gui_image.c
+@@ -195,7 +195,10 @@ load_image (grub_gui_image_t self, const char *path)
+     return grub_errno;
+ 
+   if (self->bitmap && (self->bitmap != self->raw_bitmap))
+-    grub_video_bitmap_destroy (self->bitmap);
++    {
++      grub_video_bitmap_destroy (self->bitmap);
++      self->bitmap = 0;
++    }
+   if (self->raw_bitmap)
+     grub_video_bitmap_destroy (self->raw_bitmap);
+ 

0213-xnu-Fix-double-free-in-grub_xnu_devprop_add_property.patch

@@ -0,0 +1,53 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alexey Makhalov <amakhalov@vmware.com>
+Date: Wed, 8 Jul 2020 21:30:43 +0000
+Subject: [PATCH] xnu: Fix double free in grub_xnu_devprop_add_property()
+
+grub_xnu_devprop_add_property() should not free utf8 and utf16 as it get
+allocated and freed in the caller.
+
+Minor improvement: do prop fields initialization after memory allocations.
+
+Fixes: CID 292442, CID 292457, CID 292460, CID 292466
+
+Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: 4d5e2d13519
+---
+ grub-core/loader/i386/xnu.c | 19 +++++++++----------
+ 1 file changed, 9 insertions(+), 10 deletions(-)
+
+diff --git a/grub-core/loader/i386/xnu.c b/grub-core/loader/i386/xnu.c
+index ee0eaadc4ee..c760db30fc0 100644
+--- a/grub-core/loader/i386/xnu.c
++++ b/grub-core/loader/i386/xnu.c
+@@ -262,20 +262,19 @@ grub_xnu_devprop_add_property (struct grub_xnu_devprop_device_descriptor *dev,
+   if (!prop)
+     return grub_errno;
+ 
++  prop->data = grub_malloc (datalen);
++  if (!prop->data)
++    {
++      grub_free (prop);
++      return grub_errno;
++    }
++  grub_memcpy (prop->data, data, datalen);
++
+   prop->name = utf8;
+   prop->name16 = utf16;
+   prop->name16len = utf16len;
+-
+   prop->length = datalen;
+-  prop->data = grub_malloc (prop->length);
+-  if (!prop->data)
+-    {
+-      grub_free (prop->name);
+-      grub_free (prop->name16);
+-      grub_free (prop);
+-      return grub_errno;
+-    }
+-  grub_memcpy (prop->data, data, prop->length);
++
+   grub_list_push (GRUB_AS_LIST_P (&dev->properties),
+ 		  GRUB_AS_LIST (prop));
+   return GRUB_ERR_NONE;

0214-lzma-Make-sure-we-don-t-dereference-past-array.patch

@@ -0,0 +1,49 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Date: Thu, 9 Jul 2020 03:05:23 +0000
+Subject: [PATCH] lzma: Make sure we don't dereference past array
+
+The two dimensional array p->posSlotEncoder[4][64] is being dereferenced
+using the GetLenToPosState() macro which checks if len is less than 5,
+and if so subtracts 2 from it. If len = 0, that is 0 - 2 = 4294967294.
+Obviously we don't want to dereference that far out so we check if the
+position found is greater or equal kNumLenToPosStates (4) and bail out.
+
+N.B.: Upstream LZMA 18.05 and later has this function completely rewritten
+without any history.
+
+Fixes: CID 51526
+
+Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: f91e043bda4
+---
+ grub-core/lib/LzmaEnc.c | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/lib/LzmaEnc.c b/grub-core/lib/LzmaEnc.c
+index f2ec04a8c28..753e56a95e3 100644
+--- a/grub-core/lib/LzmaEnc.c
++++ b/grub-core/lib/LzmaEnc.c
+@@ -1877,13 +1877,19 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize
+       }
+       else
+       {
+-        UInt32 posSlot;
++        UInt32 posSlot, lenToPosState;
+         RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
+         p->state = kMatchNextStates[p->state];
+         LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices);
+         pos -= LZMA_NUM_REPS;
+         GetPosSlot(pos, posSlot);
+-        RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, posSlot);
++        lenToPosState = GetLenToPosState(len);
++        if (lenToPosState >= kNumLenToPosStates)
++        {
++          p->result = SZ_ERROR_DATA;
++          return CheckErrors(p);
++        }
++        RcTree_Encode(&p->rc, p->posSlotEncoder[lenToPosState], kNumPosSlotBits, posSlot);
+ 
+         if (posSlot >= kStartPosModelIndex)
+         {

0215-term-Fix-overflow-on-user-inputs.patch

@@ -0,0 +1,63 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Date: Tue, 7 Jul 2020 15:12:25 -0400
+Subject: [PATCH] term: Fix overflow on user inputs
+
+This requires a very weird input from the serial interface but can cause
+an overflow in input_buf (keys) overwriting the next variable (npending)
+with the user choice:
+
+(pahole output)
+
+struct grub_terminfo_input_state {
+        int                        input_buf[6];         /*     0    24 */
+        int                        npending;             /*    24     4 */ <- CORRUPT
+        ...snip...
+
+The magic string requires causing this is "ESC,O,],0,1,2,q" and we overflow
+npending with "q" (aka increase npending to 161). The simplest fix is to
+just to disallow overwrites input_buf, which exactly what this patch does.
+
+Fixes: CID 292449
+
+Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: 98dfa546777
+---
+ grub-core/term/terminfo.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+diff --git a/grub-core/term/terminfo.c b/grub-core/term/terminfo.c
+index 537a5c0cb0b..44d0b3b19fb 100644
+--- a/grub-core/term/terminfo.c
++++ b/grub-core/term/terminfo.c
+@@ -398,7 +398,7 @@ grub_terminfo_getwh (struct grub_term_output *term)
+ }
+ 
+ static void
+-grub_terminfo_readkey (struct grub_term_input *term, int *keys, int *len,
++grub_terminfo_readkey (struct grub_term_input *term, int *keys, int *len, int max_len,
+ 		       int (*readkey) (struct grub_term_input *term))
+ {
+   int c;
+@@ -414,6 +414,9 @@ grub_terminfo_readkey (struct grub_term_input *term, int *keys, int *len,
+     if (c == -1)						\
+       return;							\
+ 								\
++    if (*len >= max_len)                                       \
++      return;                                                   \
++                                                                \
+     keys[*len] = c;						\
+     (*len)++;							\
+   }
+@@ -602,8 +605,8 @@ grub_terminfo_getkey (struct grub_term_input *termi)
+       return ret;
+     }
+ 
+-  grub_terminfo_readkey (termi, data->input_buf,
+-			 &data->npending, data->readkey);
++  grub_terminfo_readkey (termi, data->input_buf, &data->npending,
++			 GRUB_TERMINFO_READKEY_MAX_LEN, data->readkey);
+ 
+ #if defined(__powerpc__) && defined(GRUB_MACHINE_IEEE1275)
+   if (data->npending == 1 && data->input_buf[0] == GRUB_TERM_ESC

0216-udf-Fix-memory-leak.patch

@@ -0,0 +1,53 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Date: Tue, 7 Jul 2020 22:02:31 -0400
+Subject: [PATCH] udf: Fix memory leak
+
+Fixes: CID 73796
+
+Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Reviewed-by: Jan Setje-Eilers <jan.setjeeilers@oracle.com>
+Upstream-commit-id: 8da62d8183c
+---
+ grub-core/fs/udf.c | 17 +++++++++++++----
+ 1 file changed, 13 insertions(+), 4 deletions(-)
+
+diff --git a/grub-core/fs/udf.c b/grub-core/fs/udf.c
+index be41b48f913..6670beb5665 100644
+--- a/grub-core/fs/udf.c
++++ b/grub-core/fs/udf.c
+@@ -965,8 +965,10 @@ grub_udf_iterate_dir (grub_fshelp_node_t dir,
+ 	    return 0;
+ 
+           if (grub_udf_read_icb (dir->data, &dirent.icb, child))
+-	    return 0;
+-
++	    {
++	      grub_free (child);
++	      return 0;
++	    }
+           if (dirent.characteristics & GRUB_UDF_FID_CHAR_PARENT)
+ 	    {
+ 	      /* This is the parent directory.  */
+@@ -988,11 +990,18 @@ grub_udf_iterate_dir (grub_fshelp_node_t dir,
+ 				       dirent.file_ident_length,
+ 				       (char *) raw))
+ 		  != dirent.file_ident_length)
+-		return 0;
++		{
++		  grub_free (child);
++		  return 0;
++		}
+ 
+ 	      filename = read_string (raw, dirent.file_ident_length, 0);
+ 	      if (!filename)
+-		grub_print_error ();
++		{
++		  /* As the hook won't get called. */
++		  grub_free (child);
++		  grub_print_error ();
++		}
+ 
+ 	      if (filename && hook (filename, type, child, hook_data))
+ 		{

0217-multiboot2-Fix-memory-leak-if-grub_create_loader_cmd.patch

@@ -0,0 +1,44 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Date: Fri, 26 Jun 2020 10:51:43 -0400
+Subject: [PATCH] multiboot2: Fix memory leak if grub_create_loader_cmdline()
+ fails
+
+Fixes: CID 292468
+
+Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: cd6760b6289
+---
+ grub-core/loader/multiboot_mbi2.c | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/loader/multiboot_mbi2.c b/grub-core/loader/multiboot_mbi2.c
+index 54078455e2f..47d4c6f0977 100644
+--- a/grub-core/loader/multiboot_mbi2.c
++++ b/grub-core/loader/multiboot_mbi2.c
+@@ -1089,6 +1089,7 @@ grub_multiboot2_add_module (grub_addr_t start, grub_size_t size,
+ {
+   struct module *newmod;
+   grub_size_t len = 0;
++  grub_err_t err;
+ 
+   newmod = grub_malloc (sizeof (*newmod));
+   if (!newmod)
+@@ -1107,8 +1108,14 @@ grub_multiboot2_add_module (grub_addr_t start, grub_size_t size,
+   newmod->cmdline_size = len;
+   total_modcmd += ALIGN_UP (len, MULTIBOOT_TAG_ALIGN);
+ 
+-  grub_create_loader_cmdline (argc, argv, newmod->cmdline,
+-			      newmod->cmdline_size);
++  err = grub_create_loader_cmdline (argc, argv, newmod->cmdline,
++				    newmod->cmdline_size);
++  if (err)
++    {
++      grub_free (newmod->cmdline);
++      grub_free (newmod);
++      return err;
++    }
+ 
+   if (modules_last)
+     modules_last->next = newmod;

0218-tftp-Do-not-use-priority-queue.patch

@@ -0,0 +1,278 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alexey Makhalov <amakhalov@vmware.com>
+Date: Thu, 9 Jul 2020 08:10:40 +0000
+Subject: [PATCH] tftp: Do not use priority queue
+
+There is not need to reassemble the order of blocks. Per RFC 1350,
+server must wait for the ACK, before sending next block. Data packets
+can be served immediately without putting them to priority queue.
+
+Logic to handle incoming packet is this:
+  - if packet block id equal to expected block id, then
+    process the packet,
+  - if packet block id is less than expected - this is retransmit
+    of old packet, then ACK it and drop the packet,
+  - if packet block id is more than expected - that shouldn't
+    happen, just drop the packet.
+
+It makes the tftp receive path code simpler, smaller and faster.
+As a benefit, this change fixes CID# 73624 and CID# 96690, caused
+by following while loop:
+
+  while (cmp_block (grub_be_to_cpu16 (tftph->u.data.block), data->block + 1) == 0)
+
+where tftph pointer is not moving from one iteration to another, causing
+to serve same packet again. Luckily, double serving didn't happen due to
+data->block++ during the first iteration.
+
+Fixes: CID 73624, CID 96690
+
+Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: 8316694c4f7
+---
+ grub-core/net/tftp.c | 162 ++++++++++++++++-----------------------------------
+ 1 file changed, 50 insertions(+), 112 deletions(-)
+
+diff --git a/grub-core/net/tftp.c b/grub-core/net/tftp.c
+index e267af354f4..c2df3d7f6ab 100644
+--- a/grub-core/net/tftp.c
++++ b/grub-core/net/tftp.c
+@@ -25,7 +25,6 @@
+ #include <grub/mm.h>
+ #include <grub/dl.h>
+ #include <grub/file.h>
+-#include <grub/priority_queue.h>
+ #include <grub/i18n.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+@@ -106,31 +105,8 @@ typedef struct tftp_data
+   int have_oack;
+   struct grub_error_saved save_err;
+   grub_net_udp_socket_t sock;
+-  grub_priority_queue_t pq;
+ } *tftp_data_t;
+ 
+-static int
+-cmp_block (grub_uint16_t a, grub_uint16_t b)
+-{
+-  grub_int16_t i = (grub_int16_t) (a - b);
+-  if (i > 0)
+-    return +1;
+-  if (i < 0)
+-    return -1;
+-  return 0;
+-}
+-
+-static int
+-cmp (const void *a__, const void *b__)
+-{
+-  struct grub_net_buff *a_ = *(struct grub_net_buff **) a__;
+-  struct grub_net_buff *b_ = *(struct grub_net_buff **) b__;
+-  struct tftphdr *a = (struct tftphdr *) a_->data;
+-  struct tftphdr *b = (struct tftphdr *) b_->data;
+-  /* We want the first elements to be on top.  */
+-  return -cmp_block (grub_be_to_cpu16 (a->u.data.block), grub_be_to_cpu16 (b->u.data.block));
+-}
+-
+ static grub_err_t
+ ack (tftp_data_t data, grub_uint64_t block)
+ {
+@@ -207,73 +183,60 @@ tftp_receive (grub_net_udp_socket_t sock __attribute__ ((unused)),
+ 	  return GRUB_ERR_NONE;
+ 	}
+ 
+-      err = grub_priority_queue_push (data->pq, &nb);
+-      if (err)
+-	return err;
++      /* Ack old/retransmitted block. */
++      if (grub_be_to_cpu16 (tftph->u.data.block) < data->block + 1)
++	ack (data, grub_be_to_cpu16 (tftph->u.data.block));
++      /* Ignore unexpected block. */
++      else if (grub_be_to_cpu16 (tftph->u.data.block) > data->block + 1)
++	grub_dprintf ("tftp", "TFTP unexpected block # %d\n", tftph->u.data.block);
++      else
++	{
++	  unsigned size;
+ 
+-      {
+-	struct grub_net_buff **nb_top_p, *nb_top;
+-	while (1)
+-	  {
+-	    nb_top_p = grub_priority_queue_top (data->pq);
+-	    if (!nb_top_p)
+-	      return GRUB_ERR_NONE;
+-	    nb_top = *nb_top_p;
+-	    tftph = (struct tftphdr *) nb_top->data;
+-	    if (cmp_block (grub_be_to_cpu16 (tftph->u.data.block), data->block + 1) >= 0)
+-	      break;
+-	    ack (data, grub_be_to_cpu16 (tftph->u.data.block));
+-	    grub_netbuff_free (nb_top);
+-	    grub_priority_queue_pop (data->pq);
+-	  }
+-	while (cmp_block (grub_be_to_cpu16 (tftph->u.data.block), data->block + 1) == 0)
+-	  {
+-	    unsigned size;
+-
+-	    grub_priority_queue_pop (data->pq);
+-
+-	    if (file->device->net->packs.count < 50)
++	  if (file->device->net->packs.count < 50)
++	    {
+ 	      err = ack (data, data->block + 1);
+-	    else
+-	      {
+-		file->device->net->stall = 1;
+-		err = 0;
+-	      }
+-	    if (err)
+-	      return err;
++	      if (err)
++		return err;
++	    }
++	  else
++	    file->device->net->stall = 1;
+ 
+-	    err = grub_netbuff_pull (nb_top, sizeof (tftph->opcode) +
+-				     sizeof (tftph->u.data.block));
+-	    if (err)
+-	      return err;
+-	    size = nb_top->tail - nb_top->data;
++	  err = grub_netbuff_pull (nb, sizeof (tftph->opcode) +
++				   sizeof (tftph->u.data.block));
++	  if (err)
++	    return err;
++	  size = nb->tail - nb->data;
+ 
+-	    data->block++;
+-	    if (size < data->block_size)
+-	      {
+-		if (data->ack_sent < data->block)
+-		  ack (data, data->block);
+-		file->device->net->eof = 1;
+-		file->device->net->stall = 1;
+-		grub_net_udp_close (data->sock);
+-		data->sock = NULL;
+-	      }
+-	    /* Prevent garbage in broken cards. Is it still necessary
+-	       given that IP implementation has been fixed?
+-	     */
+-	    if (size > data->block_size)
+-	      {
+-		err = grub_netbuff_unput (nb_top, size - data->block_size);
+-		if (err)
+-		  return err;
+-	      }
+-	    /* If there is data, puts packet in socket list. */
+-	    if ((nb_top->tail - nb_top->data) > 0)
+-	      grub_net_put_packet (&file->device->net->packs, nb_top);
+-	    else
+-	      grub_netbuff_free (nb_top);
+-	  }
+-      }
++	  data->block++;
++	  if (size < data->block_size)
++	    {
++	      if (data->ack_sent < data->block)
++		ack (data, data->block);
++	      file->device->net->eof = 1;
++	      file->device->net->stall = 1;
++	      grub_net_udp_close (data->sock);
++	      data->sock = NULL;
++	    }
++	  /*
++	   * Prevent garbage in broken cards. Is it still necessary
++	   * given that IP implementation has been fixed?
++	   */
++	  if (size > data->block_size)
++	    {
++	      err = grub_netbuff_unput (nb, size - data->block_size);
++	      if (err)
++		return err;
++	    }
++	  /* If there is data, puts packet in socket list. */
++	  if ((nb->tail - nb->data) > 0)
++	    {
++	      grub_net_put_packet (&file->device->net->packs, nb);
++	      /* Do not free nb. */
++	      return GRUB_ERR_NONE;
++	    }
++	}
++      grub_netbuff_free (nb);
+       return GRUB_ERR_NONE;
+     case TFTP_ERROR:
+       data->have_oack = 1;
+@@ -287,19 +250,6 @@ tftp_receive (grub_net_udp_socket_t sock __attribute__ ((unused)),
+     }
+ }
+ 
+-static void
+-destroy_pq (tftp_data_t data)
+-{
+-  struct grub_net_buff **nb_p;
+-  while ((nb_p = grub_priority_queue_top (data->pq)))
+-    {
+-      grub_netbuff_free (*nb_p);
+-      grub_priority_queue_pop (data->pq);
+-    }
+-
+-  grub_priority_queue_destroy (data->pq);
+-}
+-
+ /* Create a normalized copy of the filename.
+    Compress any string of consecutive forward slashes to a single forward
+    slash. */
+@@ -395,13 +345,6 @@ tftp_open (struct grub_file *file, const char *filename)
+   file->not_easily_seekable = 1;
+   file->data = data;
+ 
+-  data->pq = grub_priority_queue_new (sizeof (struct grub_net_buff *), cmp);
+-  if (!data->pq)
+-    {
+-      grub_free (data);
+-      return grub_errno;
+-    }
+-
+   grub_dprintf("tftp", "resolving address for %s\n", file->device->net->server);
+   err = grub_net_resolve_address (file->device->net->server, &addr);
+   if (err)
+@@ -410,7 +353,6 @@ tftp_open (struct grub_file *file, const char *filename)
+       grub_dprintf ("tftp", "file_size is %llu, block_size is %llu\n",
+ 		    (unsigned long long)data->file_size,
+ 		    (unsigned long long)data->block_size);
+-      destroy_pq (data);
+       grub_free (data);
+       return err;
+     }
+@@ -422,7 +364,6 @@ tftp_open (struct grub_file *file, const char *filename)
+   if (!data->sock)
+     {
+       grub_dprintf("tftp", "connection failed\n");
+-      destroy_pq (data);
+       grub_free (data);
+       return grub_errno;
+     }
+@@ -436,7 +377,6 @@ tftp_open (struct grub_file *file, const char *filename)
+       if (err)
+ 	{
+ 	  grub_net_udp_close (data->sock);
+-	  destroy_pq (data);
+ 	  grub_free (data);
+ 	  return err;
+ 	}
+@@ -453,7 +393,6 @@ tftp_open (struct grub_file *file, const char *filename)
+   if (grub_errno)
+     {
+       grub_net_udp_close (data->sock);
+-      destroy_pq (data);
+       grub_free (data);
+       return grub_errno;
+     }
+@@ -496,7 +435,6 @@ tftp_close (struct grub_file *file)
+ 	grub_print_error ();
+       grub_net_udp_close (data->sock);
+     }
+-  destroy_pq (data);
+   grub_free (data);
+   return GRUB_ERR_NONE;
+ }

0219-multiboot2-Set-min-address-for-mbi-allocation-to-0x1.patch

@@ -0,0 +1,44 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Lukasz Hawrylko <lukasz.hawrylko@linux.intel.com>
+Date: Mon, 16 Dec 2019 11:15:55 +0100
+Subject: [PATCH] multiboot2: Set min address for mbi allocation to 0x1000
+
+In some cases GRUB2 allocates multiboot2 structure at 0 address, that is
+a confusing behavior. Consumers of that structure can have internal NULL-checks
+that will throw an error when get a pointer to data allocated at address 0.
+To prevent that, define min address for mbi allocation on x86 and x86_64
+platforms.
+
+Signed-off-by: Lukasz Hawrylko <lukasz.hawrylko@linux.intel.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: 0f3f5b7c13f
+---
+ grub-core/loader/multiboot_mbi2.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/grub-core/loader/multiboot_mbi2.c b/grub-core/loader/multiboot_mbi2.c
+index 47d4c6f0977..797870b6138 100644
+--- a/grub-core/loader/multiboot_mbi2.c
++++ b/grub-core/loader/multiboot_mbi2.c
+@@ -49,6 +49,12 @@
+ #define HAS_VGA_TEXT 0
+ #endif
+ 
++#if defined (__i386__) || defined (__x86_64__)
++#define MBI_MIN_ADDR 0x1000
++#else
++#define MBI_MIN_ADDR 0
++#endif
++
+ struct module
+ {
+   struct module *next;
+@@ -747,7 +753,7 @@ grub_multiboot2_make_mbi (grub_uint32_t *target)
+   COMPILE_TIME_ASSERT (MULTIBOOT_TAG_ALIGN % sizeof (grub_properly_aligned_t) == 0);
+ 
+   err = grub_relocator_alloc_chunk_align (grub_multiboot2_relocator, &ch,
+-					  0, 0xffffffff - bufsize,
++					  MBI_MIN_ADDR, 0xffffffff - bufsize,
+ 					  bufsize, MULTIBOOT_TAG_ALIGN,
+ 					  GRUB_RELOCATOR_PREFERENCE_NONE, 1);
+   if (err)

0220-relocator-Protect-grub_relocator_alloc_chunk_addr-in.patch

@@ -0,0 +1,147 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alexey Makhalov <amakhalov@vmware.com>
+Date: Wed, 15 Jul 2020 06:42:37 +0000
+Subject: [PATCH] relocator: Protect grub_relocator_alloc_chunk_addr() input
+ args against integer underflow/overflow
+
+Use arithmetic macros from safemath.h to accomplish it. In this commit,
+I didn't want to be too paranoid to check every possible math equation
+for overflow/underflow. Only obvious places (with non zero chance of
+overflow/underflow) were refactored.
+
+Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: ebb15735f10
+---
+ grub-core/loader/i386/linux.c    |  9 +++++++--
+ grub-core/loader/i386/pc/linux.c |  9 +++++++--
+ grub-core/loader/i386/xen.c      | 12 ++++++++++--
+ grub-core/loader/xnu.c           | 11 +++++++----
+ 4 files changed, 31 insertions(+), 10 deletions(-)
+
+diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c
+index 76304f05700..b4a30f607fa 100644
+--- a/grub-core/loader/i386/linux.c
++++ b/grub-core/loader/i386/linux.c
+@@ -37,6 +37,7 @@
+ #include <grub/linux.h>
+ #include <grub/efi/sb.h>
+ #include <grub/tpm.h>
++#include <grub/safemath.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -593,9 +594,13 @@ grub_linux_boot (void)
+ 
+   {
+     grub_relocator_chunk_t ch;
++    grub_size_t sz;
++
++    if (grub_add (ctx.real_size, efi_mmap_size, &sz))
++      return GRUB_ERR_OUT_OF_RANGE;
++
+     err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+-					   ctx.real_mode_target,
+-					   (ctx.real_size + efi_mmap_size));
++					   ctx.real_mode_target, sz);
+     if (err)
+      return err;
+     real_mode_mem = get_virtual_current_address (ch);
+diff --git a/grub-core/loader/i386/pc/linux.c b/grub-core/loader/i386/pc/linux.c
+index 783a3cd93bc..540891371f9 100644
+--- a/grub-core/loader/i386/pc/linux.c
++++ b/grub-core/loader/i386/pc/linux.c
+@@ -36,6 +36,7 @@
+ #include <grub/lib/cmdline.h>
+ #include <grub/linux.h>
+ #include <grub/efi/sb.h>
++#include <grub/safemath.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -231,8 +232,12 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+     setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS;
+ 
+   real_size = setup_sects << GRUB_DISK_SECTOR_BITS;
+-  grub_linux16_prot_size = grub_file_size (file)
+-    - real_size - GRUB_DISK_SECTOR_SIZE;
++  if (grub_sub (grub_file_size (file), real_size, &grub_linux16_prot_size) ||
++      grub_sub (grub_linux16_prot_size, GRUB_DISK_SECTOR_SIZE, &grub_linux16_prot_size))
++    {
++      grub_error (GRUB_ERR_OUT_OF_RANGE, N_("overflow is detected"));
++      goto fail;
++    }
+ 
+   if (! grub_linux_is_bzimage
+       && GRUB_LINUX_ZIMAGE_ADDR + grub_linux16_prot_size
+diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
+index 3073f64d5e5..85b93347b25 100644
+--- a/grub-core/loader/i386/xen.c
++++ b/grub-core/loader/i386/xen.c
+@@ -40,6 +40,7 @@
+ #include <grub/xen_file.h>
+ #include <grub/linux.h>
+ #include <grub/i386/memory.h>
++#include <grub/safemath.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -635,6 +636,7 @@ grub_cmd_xen (grub_command_t cmd __attribute__ ((unused)),
+   grub_relocator_chunk_t ch;
+   grub_addr_t kern_start;
+   grub_addr_t kern_end;
++  grub_size_t sz;
+ 
+   if (argc == 0)
+     return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+@@ -699,8 +701,14 @@ grub_cmd_xen (grub_command_t cmd __attribute__ ((unused)),
+ 
+   xen_state.max_addr = ALIGN_UP (kern_end, PAGE_SIZE);
+ 
+-  err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch, kern_start,
+-					 kern_end - kern_start);
++
++  if (grub_sub (kern_end, kern_start, &sz))
++    {
++      err = GRUB_ERR_OUT_OF_RANGE;
++      goto fail;
++    }
++
++  err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch, kern_start, sz);
+   if (err)
+     goto fail;
+   kern_chunk_src = get_virtual_current_address (ch);
+diff --git a/grub-core/loader/xnu.c b/grub-core/loader/xnu.c
+index dc7d5409e1e..2bf02489bad 100644
+--- a/grub-core/loader/xnu.c
++++ b/grub-core/loader/xnu.c
+@@ -34,6 +34,7 @@
+ #include <grub/env.h>
+ #include <grub/i18n.h>
+ #include <grub/efi/sb.h>
++#include <grub/safemath.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -59,15 +60,17 @@ grub_xnu_heap_malloc (int size, void **src, grub_addr_t *target)
+ {
+   grub_err_t err;
+   grub_relocator_chunk_t ch;
++  grub_addr_t tgt;
++
++  if (grub_add (grub_xnu_heap_target_start, grub_xnu_heap_size, &tgt))
++    return GRUB_ERR_OUT_OF_RANGE;
+   
+-  err = grub_relocator_alloc_chunk_addr (grub_xnu_relocator, &ch,
+-					 grub_xnu_heap_target_start
+-					 + grub_xnu_heap_size, size);
++  err = grub_relocator_alloc_chunk_addr (grub_xnu_relocator, &ch, tgt, size);
+   if (err)
+     return err;
+ 
+   *src = get_virtual_current_address (ch);
+-  *target = grub_xnu_heap_target_start + grub_xnu_heap_size;
++  *target = tgt;
+   grub_xnu_heap_size += size;
+   grub_dprintf ("xnu", "val=%p\n", *src);
+   return GRUB_ERR_NONE;

0221-relocator-Protect-grub_relocator_alloc_chunk_align-m.patch

@@ -0,0 +1,335 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alexey Makhalov <amakhalov@vmware.com>
+Date: Wed, 8 Jul 2020 01:44:38 +0000
+Subject: [PATCH] relocator: Protect grub_relocator_alloc_chunk_align()
+ max_addr against integer underflow
+
+This commit introduces integer underflow mitigation in max_addr calculation
+in grub_relocator_alloc_chunk_align() invocation.
+
+It consists of 2 fixes:
+  1. Introduced grub_relocator_alloc_chunk_align_safe() wrapper function to perform
+     sanity check for min/max and size values, and to make safe invocation of
+     grub_relocator_alloc_chunk_align() with validated max_addr value. Replace all
+     invocations such as grub_relocator_alloc_chunk_align(..., min_addr, max_addr - size, size, ...)
+     by grub_relocator_alloc_chunk_align_safe(..., min_addr, max_addr, size, ...).
+  2. Introduced UP_TO_TOP32(s) macro for the cases where max_addr is 32-bit top
+     address (0xffffffff - size + 1) or similar.
+
+Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: 10498c8ba17
+---
+ grub-core/lib/i386/relocator.c        | 28 +++++++++++-----------------
+ grub-core/lib/mips/relocator.c        |  6 ++----
+ grub-core/lib/powerpc/relocator.c     |  6 ++----
+ grub-core/lib/x86_64/efi/relocator.c  |  7 +++----
+ grub-core/loader/i386/linux.c         |  5 ++---
+ grub-core/loader/i386/multiboot_mbi.c |  7 +++----
+ grub-core/loader/i386/pc/linux.c      |  6 ++----
+ grub-core/loader/mips/linux.c         |  9 +++------
+ grub-core/loader/multiboot.c          |  2 +-
+ grub-core/loader/multiboot_elfxx.c    | 10 +++++-----
+ grub-core/loader/multiboot_mbi2.c     | 10 +++++-----
+ grub-core/loader/xnu_resume.c         |  2 +-
+ include/grub/relocator.h              | 29 +++++++++++++++++++++++++++++
+ 13 files changed, 69 insertions(+), 58 deletions(-)
+
+diff --git a/grub-core/lib/i386/relocator.c b/grub-core/lib/i386/relocator.c
+index 71dd4f0ab0c..34cbe834fa3 100644
+--- a/grub-core/lib/i386/relocator.c
++++ b/grub-core/lib/i386/relocator.c
+@@ -83,11 +83,10 @@ grub_relocator32_boot (struct grub_relocator *rel,
+   /* Specific memory range due to Global Descriptor Table for use by payload
+      that we will store in returned chunk.  The address range and preference
+      are based on "THE LINUX/x86 BOOT PROTOCOL" specification.  */
+-  err = grub_relocator_alloc_chunk_align (rel, &ch, 0x1000,
+-					  0x9a000 - RELOCATOR_SIZEOF (32),
+-					  RELOCATOR_SIZEOF (32), 16,
+-					  GRUB_RELOCATOR_PREFERENCE_LOW,
+-					  avoid_efi_bootservices);
++  err = grub_relocator_alloc_chunk_align_safe (rel, &ch, 0x1000, 0x9a000,
++					       RELOCATOR_SIZEOF (32), 16,
++					       GRUB_RELOCATOR_PREFERENCE_LOW,
++					       avoid_efi_bootservices);
+   if (err)
+     return err;
+ 
+@@ -125,13 +124,10 @@ grub_relocator16_boot (struct grub_relocator *rel,
+   grub_relocator_chunk_t ch;
+ 
+   /* Put it higher than the byte it checks for A20 check.  */
+-  err = grub_relocator_alloc_chunk_align (rel, &ch, 0x8010,
+-					  0xa0000 - RELOCATOR_SIZEOF (16)
+-					  - GRUB_RELOCATOR16_STACK_SIZE,
+-					  RELOCATOR_SIZEOF (16)
+-					  + GRUB_RELOCATOR16_STACK_SIZE, 16,
+-					  GRUB_RELOCATOR_PREFERENCE_NONE,
+-					  0);
++  err = grub_relocator_alloc_chunk_align_safe (rel, &ch, 0x8010, 0xa0000,
++					       RELOCATOR_SIZEOF (16) +
++					       GRUB_RELOCATOR16_STACK_SIZE, 16,
++					       GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+   if (err)
+     return err;
+ 
+@@ -183,11 +179,9 @@ grub_relocator64_boot (struct grub_relocator *rel,
+   void *relst;
+   grub_relocator_chunk_t ch;
+ 
+-  err = grub_relocator_alloc_chunk_align (rel, &ch, min_addr,
+-					  max_addr - RELOCATOR_SIZEOF (64),
+-					  RELOCATOR_SIZEOF (64), 16,
+-					  GRUB_RELOCATOR_PREFERENCE_NONE,
+-					  0);
++  err = grub_relocator_alloc_chunk_align_safe (rel, &ch, min_addr, max_addr,
++					       RELOCATOR_SIZEOF (64), 16,
++					       GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+   if (err)
+     return err;
+ 
+diff --git a/grub-core/lib/mips/relocator.c b/grub-core/lib/mips/relocator.c
+index 9d5f49cb93a..743b213e695 100644
+--- a/grub-core/lib/mips/relocator.c
++++ b/grub-core/lib/mips/relocator.c
+@@ -120,10 +120,8 @@ grub_relocator32_boot (struct grub_relocator *rel,
+   unsigned i;
+   grub_addr_t vtarget;
+ 
+-  err = grub_relocator_alloc_chunk_align (rel, &ch, 0,
+-					  (0xffffffff - stateset_size)
+-					  + 1, stateset_size,
+-					  sizeof (grub_uint32_t),
++  err = grub_relocator_alloc_chunk_align (rel, &ch, 0, UP_TO_TOP32 (stateset_size),
++					  stateset_size, sizeof (grub_uint32_t),
+ 					  GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+   if (err)
+     return err;
+diff --git a/grub-core/lib/powerpc/relocator.c b/grub-core/lib/powerpc/relocator.c
+index bdf2b111be7..8ffb8b68683 100644
+--- a/grub-core/lib/powerpc/relocator.c
++++ b/grub-core/lib/powerpc/relocator.c
+@@ -115,10 +115,8 @@ grub_relocator32_boot (struct grub_relocator *rel,
+   unsigned i;
+   grub_relocator_chunk_t ch;
+ 
+-  err = grub_relocator_alloc_chunk_align (rel, &ch, 0,
+-					  (0xffffffff - stateset_size)
+-					  + 1, stateset_size,
+-					  sizeof (grub_uint32_t),
++  err = grub_relocator_alloc_chunk_align (rel, &ch, 0, UP_TO_TOP32 (stateset_size),
++					  stateset_size, sizeof (grub_uint32_t),
+ 					  GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+   if (err)
+     return err;
+diff --git a/grub-core/lib/x86_64/efi/relocator.c b/grub-core/lib/x86_64/efi/relocator.c
+index 3caef7a4021..7d200a125ee 100644
+--- a/grub-core/lib/x86_64/efi/relocator.c
++++ b/grub-core/lib/x86_64/efi/relocator.c
+@@ -50,10 +50,9 @@ grub_relocator64_efi_boot (struct grub_relocator *rel,
+    * 64-bit relocator code may live above 4 GiB quite well.
+    * However, I do not want ask for problems. Just in case.
+    */
+-  err = grub_relocator_alloc_chunk_align (rel, &ch, 0,
+-					  0x100000000 - RELOCATOR_SIZEOF (64_efi),
+-					  RELOCATOR_SIZEOF (64_efi), 16,
+-					  GRUB_RELOCATOR_PREFERENCE_NONE, 1);
++  err = grub_relocator_alloc_chunk_align_safe (rel, &ch, 0, 0x100000000,
++					       RELOCATOR_SIZEOF (64_efi), 16,
++					       GRUB_RELOCATOR_PREFERENCE_NONE, 1);
+   if (err)
+     return err;
+ 
+diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c
+index b4a30f607fa..191f1631e88 100644
+--- a/grub-core/loader/i386/linux.c
++++ b/grub-core/loader/i386/linux.c
+@@ -231,9 +231,8 @@ allocate_pages (grub_size_t prot_size, grub_size_t *align,
+ 	for (; err && *align + 1 > min_align; (*align)--)
+ 	  {
+ 	    grub_errno = GRUB_ERR_NONE;
+-	    err = grub_relocator_alloc_chunk_align (relocator, &ch,
+-						    0x1000000,
+-						    0xffffffff & ~prot_size,
++	    err = grub_relocator_alloc_chunk_align (relocator, &ch, 0x1000000,
++						    UP_TO_TOP32 (prot_size),
+ 						    prot_size, 1 << *align,
+ 						    GRUB_RELOCATOR_PREFERENCE_LOW,
+ 						    1);
+diff --git a/grub-core/loader/i386/multiboot_mbi.c b/grub-core/loader/i386/multiboot_mbi.c
+index ca85358f771..9d3466d6ace 100644
+--- a/grub-core/loader/i386/multiboot_mbi.c
++++ b/grub-core/loader/i386/multiboot_mbi.c
+@@ -470,10 +470,9 @@ grub_multiboot_make_mbi (grub_uint32_t *target)
+ 
+   bufsize = grub_multiboot_get_mbi_size ();
+ 
+-  err = grub_relocator_alloc_chunk_align (grub_multiboot_relocator, &ch,
+-					  0x10000, 0xa0000 - bufsize,
+-					  bufsize, 4,
+-					  GRUB_RELOCATOR_PREFERENCE_NONE, 0);
++  err = grub_relocator_alloc_chunk_align_safe (grub_multiboot_relocator, &ch,
++					       0x10000, 0xa0000, bufsize, 4,
++					       GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+   if (err)
+     return err;
+   ptrorig = get_virtual_current_address (ch);
+diff --git a/grub-core/loader/i386/pc/linux.c b/grub-core/loader/i386/pc/linux.c
+index 540891371f9..63736fae950 100644
+--- a/grub-core/loader/i386/pc/linux.c
++++ b/grub-core/loader/i386/pc/linux.c
+@@ -460,10 +460,8 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ 
+   {
+     grub_relocator_chunk_t ch;
+-    err = grub_relocator_alloc_chunk_align (relocator, &ch,
+-					    addr_min, addr_max - size,
+-					    size, 0x1000,
+-					    GRUB_RELOCATOR_PREFERENCE_HIGH, 0);
++    err = grub_relocator_alloc_chunk_align_safe (relocator, &ch, addr_min, addr_max, size,
++						 0x1000, GRUB_RELOCATOR_PREFERENCE_HIGH, 0);
+     if (err)
+       return err;
+     initrd_chunk = get_virtual_current_address (ch);
+diff --git a/grub-core/loader/mips/linux.c b/grub-core/loader/mips/linux.c
+index 5f383be3d07..27c1db84a44 100644
+--- a/grub-core/loader/mips/linux.c
++++ b/grub-core/loader/mips/linux.c
+@@ -434,12 +434,9 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+   {
+     grub_relocator_chunk_t ch;
+ 
+-    err = grub_relocator_alloc_chunk_align (relocator, &ch,
+-					    (target_addr & 0x1fffffff)
+-					    + linux_size + 0x10000,
+-					    (0x10000000 - size),
+-					    size, 0x10000,
+-					    GRUB_RELOCATOR_PREFERENCE_NONE, 0);
++    err = grub_relocator_alloc_chunk_align_safe (relocator, &ch, (target_addr & 0x1fffffff) +
++						 linux_size + 0x10000, 0x10000000, size,
++						 0x10000, GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+ 
+     if (err)
+       goto fail;
+diff --git a/grub-core/loader/multiboot.c b/grub-core/loader/multiboot.c
+index 9a8dae5565b..f455e803910 100644
+--- a/grub-core/loader/multiboot.c
++++ b/grub-core/loader/multiboot.c
+@@ -407,7 +407,7 @@ grub_cmd_module (grub_command_t cmd __attribute__ ((unused)),
+   {
+     grub_relocator_chunk_t ch;
+     err = grub_relocator_alloc_chunk_align (GRUB_MULTIBOOT (relocator), &ch,
+-					    lowest_addr, (0xffffffff - size) + 1,
++					    lowest_addr, UP_TO_TOP32 (size),
+ 					    size, MULTIBOOT_MOD_ALIGN,
+ 					    GRUB_RELOCATOR_PREFERENCE_NONE, 1);
+     if (err)
+diff --git a/grub-core/loader/multiboot_elfxx.c b/grub-core/loader/multiboot_elfxx.c
+index cc6853692a8..f2318e0d165 100644
+--- a/grub-core/loader/multiboot_elfxx.c
++++ b/grub-core/loader/multiboot_elfxx.c
+@@ -109,10 +109,10 @@ CONCAT(grub_multiboot_load_elf, XX) (mbi_load_data_t *mld)
+       if (load_size > mld->max_addr || mld->min_addr > mld->max_addr - load_size)
+ 	return grub_error (GRUB_ERR_BAD_OS, "invalid min/max address and/or load size");
+ 
+-      err = grub_relocator_alloc_chunk_align (GRUB_MULTIBOOT (relocator), &ch,
+-					      mld->min_addr, mld->max_addr - load_size,
+-					      load_size, mld->align ? mld->align : 1,
+-					      mld->preference, mld->avoid_efi_boot_services);
++      err = grub_relocator_alloc_chunk_align_safe (GRUB_MULTIBOOT (relocator), &ch,
++						   mld->min_addr, mld->max_addr,
++						   load_size, mld->align ? mld->align : 1,
++						   mld->preference, mld->avoid_efi_boot_services);
+ 
+       if (err)
+         {
+@@ -256,7 +256,7 @@ CONCAT(grub_multiboot_load_elf, XX) (mbi_load_data_t *mld)
+ 	    continue;
+ 
+ 	  err = grub_relocator_alloc_chunk_align (GRUB_MULTIBOOT (relocator), &ch, 0,
+-						  (0xffffffff - sh->sh_size) + 1,
++						  UP_TO_TOP32 (sh->sh_size),
+ 						  sh->sh_size, sh->sh_addralign,
+ 						  GRUB_RELOCATOR_PREFERENCE_NONE,
+ 						  mld->avoid_efi_boot_services);
+diff --git a/grub-core/loader/multiboot_mbi2.c b/grub-core/loader/multiboot_mbi2.c
+index 797870b6138..0185c2ab894 100644
+--- a/grub-core/loader/multiboot_mbi2.c
++++ b/grub-core/loader/multiboot_mbi2.c
+@@ -304,10 +304,10 @@ grub_multiboot2_load (grub_file_t file, const char *filename)
+ 	      return grub_error (GRUB_ERR_BAD_OS, "invalid min/max address and/or load size");
+ 	    }
+ 
+-	  err = grub_relocator_alloc_chunk_align (grub_multiboot2_relocator, &ch,
+-						  mld.min_addr, mld.max_addr - code_size,
+-						  code_size, mld.align ? mld.align : 1,
+-						  mld.preference, keep_bs);
++	  err = grub_relocator_alloc_chunk_align_safe (grub_multiboot2_relocator, &ch,
++						       mld.min_addr, mld.max_addr,
++						       code_size, mld.align ? mld.align : 1,
++						       mld.preference, keep_bs);
+ 	}
+       else
+ 	err = grub_relocator_alloc_chunk_addr (grub_multiboot2_relocator,
+@@ -753,7 +753,7 @@ grub_multiboot2_make_mbi (grub_uint32_t *target)
+   COMPILE_TIME_ASSERT (MULTIBOOT_TAG_ALIGN % sizeof (grub_properly_aligned_t) == 0);
+ 
+   err = grub_relocator_alloc_chunk_align (grub_multiboot2_relocator, &ch,
+-					  MBI_MIN_ADDR, 0xffffffff - bufsize,
++					  MBI_MIN_ADDR, UP_TO_TOP32 (bufsize),
+ 					  bufsize, MULTIBOOT_TAG_ALIGN,
+ 					  GRUB_RELOCATOR_PREFERENCE_NONE, 1);
+   if (err)
+diff --git a/grub-core/loader/xnu_resume.c b/grub-core/loader/xnu_resume.c
+index 534a74438b2..99119558d21 100644
+--- a/grub-core/loader/xnu_resume.c
++++ b/grub-core/loader/xnu_resume.c
+@@ -129,7 +129,7 @@ grub_xnu_resume (char *imagename)
+   {
+     grub_relocator_chunk_t ch;
+     err = grub_relocator_alloc_chunk_align (grub_xnu_relocator, &ch, 0,
+-					    (0xffffffff - hibhead.image_size) + 1,
++					    UP_TO_TOP32 (hibhead.image_size),
+ 					    hibhead.image_size,
+ 					    GRUB_XNU_PAGESIZE,
+ 					    GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+diff --git a/include/grub/relocator.h b/include/grub/relocator.h
+index 24d8672d22c..1b3bdd92ac6 100644
+--- a/include/grub/relocator.h
++++ b/include/grub/relocator.h
+@@ -49,6 +49,35 @@ grub_relocator_alloc_chunk_align (struct grub_relocator *rel,
+ 				  int preference,
+ 				  int avoid_efi_boot_services);
+ 
++/*
++ * Wrapper for grub_relocator_alloc_chunk_align() with purpose of
++ * protecting against integer underflow.
++ *
++ * Compare to its callee, max_addr has different meaning here.
++ * It covers entire chunk and not just start address of the chunk.
++ */
++static inline grub_err_t
++grub_relocator_alloc_chunk_align_safe (struct grub_relocator *rel,
++				       grub_relocator_chunk_t *out,
++				       grub_phys_addr_t min_addr,
++				       grub_phys_addr_t max_addr,
++				       grub_size_t size, grub_size_t align,
++				       int preference,
++				       int avoid_efi_boot_services)
++{
++  /* Sanity check and ensure following equation (max_addr - size) is safe. */
++  if (max_addr < size || (max_addr - size) < min_addr)
++    return GRUB_ERR_OUT_OF_RANGE;
++
++  return grub_relocator_alloc_chunk_align (rel, out, min_addr,
++					   max_addr - size,
++					   size, align, preference,
++					   avoid_efi_boot_services);
++}
++
++/* Top 32-bit address minus s bytes and plus 1 byte. */
++#define UP_TO_TOP32(s)	((~(s) & 0xffffffff) + 1)
++
+ #define GRUB_RELOCATOR_PREFERENCE_NONE 0
+ #define GRUB_RELOCATOR_PREFERENCE_LOW 1
+ #define GRUB_RELOCATOR_PREFERENCE_HIGH 2

0222-script-Remove-unused-fields-from-grub_script_functio.patch

@@ -0,0 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Chris Coulson <chris.coulson@canonical.com>
+Date: Fri, 10 Jul 2020 11:21:14 +0100
+Subject: [PATCH] script: Remove unused fields from grub_script_function struct
+
+Signed-off-by: Chris Coulson <chris.coulson@canonical.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: d04089c8e52
+---
+ include/grub/script_sh.h | 5 -----
+ 1 file changed, 5 deletions(-)
+
+diff --git a/include/grub/script_sh.h b/include/grub/script_sh.h
+index 360c2be1f05..b382bcf09bc 100644
+--- a/include/grub/script_sh.h
++++ b/include/grub/script_sh.h
+@@ -359,13 +359,8 @@ struct grub_script_function
+   /* The script function.  */
+   struct grub_script *func;
+ 
+-  /* The flags.  */
+-  unsigned flags;
+-
+   /* The next element.  */
+   struct grub_script_function *next;
+-
+-  int references;
+ };
+ typedef struct grub_script_function *grub_script_function_t;
+ 

0223-script-Avoid-a-use-after-free-when-redefining-a-func.patch

@@ -0,0 +1,105 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Chris Coulson <chris.coulson@canonical.com>
+Date: Fri, 10 Jul 2020 14:41:45 +0100
+Subject: [PATCH] script: Avoid a use-after-free when redefining a function
+ during execution
+
+Defining a new function with the same name as a previously defined
+function causes the grub_script and associated resources for the
+previous function to be freed. If the previous function is currently
+executing when a function with the same name is defined, this results
+in use-after-frees when processing subsequent commands in the original
+function.
+
+Instead, reject a new function definition if it has the same name as
+a previously defined function, and that function is currently being
+executed. Although a behavioural change, this should be backwards
+compatible with existing configurations because they can't be
+dependent on the current behaviour without being broken.
+
+Signed-off-by: Chris Coulson <chris.coulson@canonical.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: f6253a1f540
+---
+ grub-core/script/execute.c  |  2 ++
+ grub-core/script/function.c | 16 +++++++++++++---
+ include/grub/script_sh.h    |  2 ++
+ grub-core/script/parser.y   |  3 ++-
+ 4 files changed, 19 insertions(+), 4 deletions(-)
+
+diff --git a/grub-core/script/execute.c b/grub-core/script/execute.c
+index 528ddfd36f0..a1aadb9ee05 100644
+--- a/grub-core/script/execute.c
++++ b/grub-core/script/execute.c
+@@ -872,7 +872,9 @@ grub_script_function_call (grub_script_function_t func, int argc, char **args)
+   old_scope = scope;
+   scope = &new_scope;
+ 
++  func->executing++;
+   ret = grub_script_execute (func->func);
++  func->executing--;
+ 
+   function_return = 0;
+   active_loops = loops;
+diff --git a/grub-core/script/function.c b/grub-core/script/function.c
+index d36655e510f..3aad04bf9dd 100644
+--- a/grub-core/script/function.c
++++ b/grub-core/script/function.c
+@@ -34,6 +34,7 @@ grub_script_function_create (struct grub_script_arg *functionname_arg,
+   func = (grub_script_function_t) grub_malloc (sizeof (*func));
+   if (! func)
+     return 0;
++  func->executing = 0;
+ 
+   func->name = grub_strdup (functionname_arg->str);
+   if (! func->name)
+@@ -60,10 +61,19 @@ grub_script_function_create (struct grub_script_arg *functionname_arg,
+       grub_script_function_t q;
+ 
+       q = *p;
+-      grub_script_free (q->func);
+-      q->func = cmd;
+       grub_free (func);
+-      func = q;
++      if (q->executing > 0)
++        {
++          grub_error (GRUB_ERR_BAD_ARGUMENT,
++		      N_("attempt to redefine a function being executed"));
++          func = NULL;
++        }
++      else
++        {
++          grub_script_free (q->func);
++          q->func = cmd;
++          func = q;
++        }
+     }
+   else
+     {
+diff --git a/include/grub/script_sh.h b/include/grub/script_sh.h
+index b382bcf09bc..6c48e075122 100644
+--- a/include/grub/script_sh.h
++++ b/include/grub/script_sh.h
+@@ -361,6 +361,8 @@ struct grub_script_function
+ 
+   /* The next element.  */
+   struct grub_script_function *next;
++
++  unsigned executing;
+ };
+ typedef struct grub_script_function *grub_script_function_t;
+ 
+diff --git a/grub-core/script/parser.y b/grub-core/script/parser.y
+index 4f0ab8319e3..f80b86b6f15 100644
+--- a/grub-core/script/parser.y
++++ b/grub-core/script/parser.y
+@@ -289,7 +289,8 @@ function: "function" "name"
+ 	      grub_script_mem_free (state->func_mem);
+ 	    else {
+ 	      script->children = state->scripts;
+-	      grub_script_function_create ($2, script);
++	      if (!grub_script_function_create ($2, script))
++		grub_script_free (script);
+ 	    }
+ 
+ 	    state->scripts = $<scripts>3;

0224-relocator-Fix-grub_relocator_alloc_chunk_align-top-m.patch

@@ -0,0 +1,43 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alexey Makhalov <amakhalov@vmware.com>
+Date: Fri, 17 Jul 2020 05:17:26 +0000
+Subject: [PATCH] relocator: Fix grub_relocator_alloc_chunk_align() top memory
+ allocation
+
+Current implementation of grub_relocator_alloc_chunk_align()
+does not allow allocation of the top byte.
+
+Assuming input args are:
+  max_addr = 0xfffff000;
+  size = 0x1000;
+
+And this is valid. But following overflow protection will
+unnecessarily move max_addr one byte down (to 0xffffefff):
+  if (max_addr > ~size)
+    max_addr = ~size;
+
+~size + 1 will fix the situation. In addition, check size
+for non zero to do not zero max_addr.
+
+Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Upstream-commit-id: ab80a97eb1f
+---
+ grub-core/lib/relocator.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/lib/relocator.c b/grub-core/lib/relocator.c
+index 5847aac3643..f2c1944c28d 100644
+--- a/grub-core/lib/relocator.c
++++ b/grub-core/lib/relocator.c
+@@ -1386,8 +1386,8 @@ grub_relocator_alloc_chunk_align (struct grub_relocator *rel,
+   };
+   grub_addr_t min_addr2 = 0, max_addr2;
+ 
+-  if (max_addr > ~size)
+-    max_addr = ~size;
++  if (size && (max_addr > ~size))
++    max_addr = ~size + 1;
+ 
+ #ifdef GRUB_MACHINE_PCBIOS
+   if (min_addr < 0x1000)

0225-hfsplus-fix-two-more-overflows.patch

@@ -0,0 +1,54 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Sun, 19 Jul 2020 14:43:31 -0400
+Subject: [PATCH] hfsplus: fix two more overflows
+
+Both node->size and node->namelen come from the supplied filesystem,
+which may be user-supplied.  We can't trust them for the math unless we
+know they don't overflow; making sure they go through calloc() first
+will give us that.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
+Upstream-commit-id: b4915078903
+---
+ grub-core/fs/hfsplus.c | 11 ++++++++---
+ 1 file changed, 8 insertions(+), 3 deletions(-)
+
+diff --git a/grub-core/fs/hfsplus.c b/grub-core/fs/hfsplus.c
+index db8ee7afc5d..6ceea039b65 100644
+--- a/grub-core/fs/hfsplus.c
++++ b/grub-core/fs/hfsplus.c
+@@ -31,6 +31,7 @@
+ #include <grub/hfs.h>
+ #include <grub/charset.h>
+ #include <grub/hfsplus.h>
++#include <grub/safemath.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -475,8 +476,12 @@ grub_hfsplus_read_symlink (grub_fshelp_node_t node)
+ {
+   char *symlink;
+   grub_ssize_t numread;
++  grub_size_t sz = node->size;
+ 
+-  symlink = grub_malloc (node->size + 1);
++  if (grub_add (sz, 1, &sz))
++    return NULL;
++
++  symlink = grub_malloc (sz);
+   if (!symlink)
+     return 0;
+ 
+@@ -715,8 +720,8 @@ list_nodes (void *record, void *hook_arg)
+   if (type == GRUB_FSHELP_UNKNOWN)
+     return 0;
+ 
+-  filename = grub_malloc (grub_be_to_cpu16 (catkey->namelen)
+-			  * GRUB_MAX_UTF8_PER_UTF16 + 1);
++  filename = grub_calloc (grub_be_to_cpu16 (catkey->namelen),
++			  GRUB_MAX_UTF8_PER_UTF16 + 1);
+   if (! filename)
+     return 0;
+ 

0226-lvm-fix-two-more-potential-data-dependent-alloc-over.patch

@@ -0,0 +1,108 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Sun, 19 Jul 2020 15:48:20 -0400
+Subject: [PATCH] lvm: fix two more potential data-dependent alloc overflows
+
+It appears to be possible to make a (possibly invalid) lvm PV with a
+metadata size field that overflows our type when adding it to the
+address we've allocated.  Even if it doesn't, it may be possible to do
+so with the math using the outcome of that as an operand.  Check them
+both.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
+Upstream-commit-id: 45ec6046ea0
+---
+ grub-core/disk/lvm.c | 47 +++++++++++++++++++++++++++++++++++++++--------
+ 1 file changed, 39 insertions(+), 8 deletions(-)
+
+diff --git a/grub-core/disk/lvm.c b/grub-core/disk/lvm.c
+index 8e76d1ae121..cca8ec668ba 100644
+--- a/grub-core/disk/lvm.c
++++ b/grub-core/disk/lvm.c
+@@ -25,6 +25,7 @@
+ #include <grub/lvm.h>
+ #include <grub/partition.h>
+ #include <grub/i18n.h>
++#include <grub/safemath.h>
+ 
+ #ifdef GRUB_UTIL
+ #include <grub/emu/misc.h>
+@@ -102,10 +103,11 @@ grub_lvm_detect (grub_disk_t disk,
+ {
+   grub_err_t err;
+   grub_uint64_t mda_offset, mda_size;
++  grub_size_t ptr;
+   char buf[GRUB_LVM_LABEL_SIZE];
+   char vg_id[GRUB_LVM_ID_STRLEN+1];
+   char pv_id[GRUB_LVM_ID_STRLEN+1];
+-  char *metadatabuf, *vgname;
++  char *metadatabuf, *mda_end, *vgname;
+   const char *p, *q;
+   struct grub_lvm_label_header *lh = (struct grub_lvm_label_header *) buf;
+   struct grub_lvm_pv_header *pvh;
+@@ -206,19 +208,31 @@ grub_lvm_detect (grub_disk_t disk,
+ 		   grub_le_to_cpu64 (rlocn->size) -
+ 		   grub_le_to_cpu64 (mdah->size));
+     }
+-  p = q = metadatabuf + grub_le_to_cpu64 (rlocn->offset);
+ 
+-  while (*q != ' ' && q < metadatabuf + mda_size)
+-    q++;
+-
+-  if (q == metadatabuf + mda_size)
++  if (grub_add ((grub_size_t)metadatabuf,
++		(grub_size_t)grub_le_to_cpu64 (rlocn->offset),
++		&ptr))
+     {
++error_parsing_metadata:
+ #ifdef GRUB_UTIL
+       grub_util_info ("error parsing metadata");
+ #endif
+       goto fail2;
+     }
+ 
++  p = q = (char *)ptr;
++
++  if (grub_add ((grub_size_t)metadatabuf, (grub_size_t)mda_size, &ptr))
++    goto error_parsing_metadata;
++
++  mda_end = (char *)ptr;
++
++  while (*q != ' ' && q < mda_end)
++    q++;
++
++  if (q == mda_end)
++    goto error_parsing_metadata;
++
+   vgname_len = q - p;
+   vgname = grub_malloc (vgname_len + 1);
+   if (!vgname)
+@@ -368,8 +382,25 @@ grub_lvm_detect (grub_disk_t disk,
+ 	      {
+ 		const char *iptr;
+ 		char *optr;
+-		lv->fullname = grub_malloc (sizeof ("lvm/") - 1 + 2 * vgname_len
+-					    + 1 + 2 * s + 1);
++
++		/* this is kind of hard to read with our safe (but rather
++		 * baroque) math primatives, but it boils down to:
++		 *
++		 * sz0 = vgname_len * 2 + 1
++		 *       + s * 2 + 1
++		 *       + sizeof ("lvm/") - 1;
++		 */
++		grub_size_t sz0 = vgname_len, sz1 = s;
++
++		if (grub_mul (sz0, 2, &sz0) ||
++		    grub_add (sz0, 1, &sz0) ||
++		    grub_mul (sz1, 2, &sz1) ||
++		    grub_add (sz1, 1, &sz1) ||
++		    grub_add (sz0, sz1, &sz0) ||
++		    grub_add (sz0, sizeof ("lvm/") - 1, &sz0))
++		  goto lvs_fail;
++
++		lv->fullname = grub_malloc (sz0);
+ 		if (!lv->fullname)
+ 		  goto lvs_fail;
+ 

0227-emu-make-grub_free-NULL-safe.patch

@@ -0,0 +1,31 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Sun, 19 Jul 2020 16:08:08 -0400
+Subject: [PATCH] emu: make grub_free(NULL) safe
+
+The grub_free() implementation in kern/mm.c safely handles NULL
+pointers, and code at many places depends on this.  We don't know that
+the same is true on all host OSes, so we need to handle the same
+behavior in grub-emu's implementation.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
+Upstream-commit-id: 96bb109e658
+---
+ grub-core/kern/emu/mm.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/grub-core/kern/emu/mm.c b/grub-core/kern/emu/mm.c
+index 145b01d3719..4d1046a219e 100644
+--- a/grub-core/kern/emu/mm.c
++++ b/grub-core/kern/emu/mm.c
+@@ -60,7 +60,8 @@ grub_zalloc (grub_size_t size)
+ void
+ grub_free (void *ptr)
+ {
+-  free (ptr);
++  if (ptr)
++    free (ptr);
+ }
+ 
+ void *

0228-efi-fix-some-malformed-device-path-arithmetic-errors.patch

@@ -0,0 +1,248 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Sun, 19 Jul 2020 16:53:27 -0400
+Subject: [PATCH] efi: fix some malformed device path arithmetic errors.
+
+Several places we take the length of a device path and subtract 4 from
+it, without ever checking that it's >= 4.  There are also cases where
+this kind of malformation will result in unpredictable iteration,
+including treating the length from one dp node as the type in the next
+node.  These are all errors, no matter where the data comes from.
+
+This patch adds a checking macro, GRUB_EFI_DEVICE_PATH_VALID(), which
+can be used in several places, and makes GRUB_EFI_NEXT_DEVICE_PATH()
+return NULL and GRUB_EFI_END_ENTIRE_DEVICE_PATH() evaluate as true when
+the length is too small.  Additionally, it makes several places in the
+code check for and return errors in these cases.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+Upstream-commit-id: 23e68a83990
+---
+ grub-core/kern/efi/efi.c           | 67 ++++++++++++++++++++++++++++++++------
+ grub-core/loader/efi/chainloader.c | 19 +++++++++--
+ grub-core/loader/i386/xnu.c        |  9 ++---
+ include/grub/efi/api.h             | 14 +++++---
+ 4 files changed, 88 insertions(+), 21 deletions(-)
+
+diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c
+index 5cc4d8f84ed..969d13dd3f8 100644
+--- a/grub-core/kern/efi/efi.c
++++ b/grub-core/kern/efi/efi.c
+@@ -347,7 +347,7 @@ grub_efi_get_filename (grub_efi_device_path_t *dp0)
+ 
+   dp = dp0;
+ 
+-  while (1)
++  while (dp)
+     {
+       grub_efi_uint8_t type = GRUB_EFI_DEVICE_PATH_TYPE (dp);
+       grub_efi_uint8_t subtype = GRUB_EFI_DEVICE_PATH_SUBTYPE (dp);
+@@ -357,9 +357,15 @@ grub_efi_get_filename (grub_efi_device_path_t *dp0)
+       if (type == GRUB_EFI_MEDIA_DEVICE_PATH_TYPE
+ 	       && subtype == GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE)
+ 	{
+-	  grub_efi_uint16_t len;
+-	  len = ((GRUB_EFI_DEVICE_PATH_LENGTH (dp) - 4)
+-		 / sizeof (grub_efi_char16_t));
++	  grub_efi_uint16_t len = GRUB_EFI_DEVICE_PATH_LENGTH (dp);
++
++	  if (len < 4)
++	    {
++	      grub_error (GRUB_ERR_OUT_OF_RANGE,
++			  "malformed EFI Device Path node has length=%d", len);
++	      return NULL;
++	    }
++	  len = (len - 4) / sizeof (grub_efi_char16_t);
+ 	  filesize += GRUB_MAX_UTF8_PER_UTF16 * len + 2;
+ 	}
+ 
+@@ -375,7 +381,7 @@ grub_efi_get_filename (grub_efi_device_path_t *dp0)
+   if (!name)
+     return NULL;
+ 
+-  while (1)
++  while (dp)
+     {
+       grub_efi_uint8_t type = GRUB_EFI_DEVICE_PATH_TYPE (dp);
+       grub_efi_uint8_t subtype = GRUB_EFI_DEVICE_PATH_SUBTYPE (dp);
+@@ -391,8 +397,15 @@ grub_efi_get_filename (grub_efi_device_path_t *dp0)
+ 
+ 	  *p++ = '/';
+ 
+-	  len = ((GRUB_EFI_DEVICE_PATH_LENGTH (dp) - 4)
+-		 / sizeof (grub_efi_char16_t));
++	  len = GRUB_EFI_DEVICE_PATH_LENGTH (dp);
++	  if (len < 4)
++	    {
++	      grub_error (GRUB_ERR_OUT_OF_RANGE,
++			  "malformed EFI Device Path node has length=%d", len);
++	      return NULL;
++	    }
++
++	  len = (len - 4) / sizeof (grub_efi_char16_t);
+ 	  fp = (grub_efi_file_path_device_path_t *) dp;
+ 	  /* According to EFI spec Path Name is NULL terminated */
+ 	  while (len > 0 && fp->path_name[len - 1] == 0)
+@@ -467,7 +480,26 @@ grub_efi_duplicate_device_path (const grub_efi_device_path_t *dp)
+        ;
+        p = GRUB_EFI_NEXT_DEVICE_PATH (p))
+     {
+-      total_size += GRUB_EFI_DEVICE_PATH_LENGTH (p);
++      grub_size_t len = GRUB_EFI_DEVICE_PATH_LENGTH (p);
++
++      /*
++       * In the event that we find a node that's completely garbage, for
++       * example if we get to 0x7f 0x01 0x02 0x00 ... (EndInstance with a size
++       * of 2), GRUB_EFI_END_ENTIRE_DEVICE_PATH() will be true and
++       * GRUB_EFI_NEXT_DEVICE_PATH() will return NULL, so we won't continue,
++       * and neither should our consumers, but there won't be any error raised
++       * even though the device path is junk.
++       *
++       * This keeps us from passing junk down back to our caller.
++       */
++      if (len < 4)
++	{
++	  grub_error (GRUB_ERR_OUT_OF_RANGE,
++		      "malformed EFI Device Path node has length=%d", len);
++	  return NULL;
++	}
++
++      total_size += len;
+       if (GRUB_EFI_END_ENTIRE_DEVICE_PATH (p))
+ 	break;
+     }
+@@ -512,7 +544,7 @@ dump_vendor_path (const char *type, grub_efi_vendor_device_path_t *vendor)
+ void
+ grub_efi_print_device_path (grub_efi_device_path_t *dp)
+ {
+-  while (1)
++  while (GRUB_EFI_DEVICE_PATH_VALID (dp))
+     {
+       grub_efi_uint8_t type = GRUB_EFI_DEVICE_PATH_TYPE (dp);
+       grub_efi_uint8_t subtype = GRUB_EFI_DEVICE_PATH_SUBTYPE (dp);
+@@ -984,7 +1016,11 @@ grub_efi_compare_device_paths (const grub_efi_device_path_t *dp1,
+     /* Return non-zero.  */
+     return 1;
+ 
+-  while (1)
++  if (dp1 == dp2)
++    return 0;
++
++  while (GRUB_EFI_DEVICE_PATH_VALID (dp1)
++	 && GRUB_EFI_DEVICE_PATH_VALID (dp2))
+     {
+       grub_efi_uint8_t type1, type2;
+       grub_efi_uint8_t subtype1, subtype2;
+@@ -1020,5 +1056,16 @@ grub_efi_compare_device_paths (const grub_efi_device_path_t *dp1,
+       dp2 = (grub_efi_device_path_t *) ((char *) dp2 + len2);
+     }
+ 
++  /*
++   * There's no "right" answer here, but we probably don't want to call a valid
++   * dp and an invalid dp equal, so pick one way or the other.
++   */
++  if (GRUB_EFI_DEVICE_PATH_VALID (dp1) &&
++      !GRUB_EFI_DEVICE_PATH_VALID (dp2))
++    return 1;
++  else if (!GRUB_EFI_DEVICE_PATH_VALID (dp1) &&
++	   GRUB_EFI_DEVICE_PATH_VALID (dp2))
++    return -1;
++
+   return 0;
+ }
+diff --git a/grub-core/loader/efi/chainloader.c b/grub-core/loader/efi/chainloader.c
+index 2da119ad513..c2411b6dab2 100644
+--- a/grub-core/loader/efi/chainloader.c
++++ b/grub-core/loader/efi/chainloader.c
+@@ -125,6 +125,12 @@ copy_file_path (grub_efi_file_path_device_path_t *fp,
+   fp->header.type = GRUB_EFI_MEDIA_DEVICE_PATH_TYPE;
+   fp->header.subtype = GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE;
+ 
++  if (!GRUB_EFI_DEVICE_PATH_VALID ((grub_efi_device_path_t *)fp))
++    {
++      grub_error (GRUB_ERR_BAD_ARGUMENT, "EFI Device Path is invalid");
++      return;
++    }
++
+   path_name = grub_calloc (len, GRUB_MAX_UTF16_PER_UTF8 * sizeof (*path_name));
+   if (!path_name)
+     return;
+@@ -164,9 +170,18 @@ make_file_path (grub_efi_device_path_t *dp, const char *filename)
+ 
+   size = 0;
+   d = dp;
+-  while (1)
++  while (d)
+     {
+-      size += GRUB_EFI_DEVICE_PATH_LENGTH (d);
++      grub_size_t len = GRUB_EFI_DEVICE_PATH_LENGTH (d);
++
++      if (len < 4)
++	{
++	  grub_error (GRUB_ERR_OUT_OF_RANGE,
++		      "malformed EFI Device Path node has length=%d", len);
++	  return NULL;
++	}
++
++      size += len;
+       if ((GRUB_EFI_END_ENTIRE_DEVICE_PATH (d)))
+ 	break;
+       d = GRUB_EFI_NEXT_DEVICE_PATH (d);
+diff --git a/grub-core/loader/i386/xnu.c b/grub-core/loader/i386/xnu.c
+index c760db30fc0..44f7ebfa2b6 100644
+--- a/grub-core/loader/i386/xnu.c
++++ b/grub-core/loader/i386/xnu.c
+@@ -515,14 +515,15 @@ grub_cmd_devprop_load (grub_command_t cmd __attribute__ ((unused)),
+ 
+       devhead = buf;
+       buf = devhead + 1;
+-      dpstart = buf;
++      dp = dpstart = buf;
+ 
+-      do
++      while (GRUB_EFI_DEVICE_PATH_VALID (dp) && buf < bufend)
+ 	{
+-	  dp = buf;
+ 	  buf = (char *) buf + GRUB_EFI_DEVICE_PATH_LENGTH (dp);
++	  if (GRUB_EFI_END_ENTIRE_DEVICE_PATH (dp))
++	    break;
++	  dp = buf;
+ 	}
+-      while (!GRUB_EFI_END_ENTIRE_DEVICE_PATH (dp) && buf < bufend);
+ 
+       dev = grub_xnu_devprop_add_device (dpstart, (char *) buf
+ 					 - (char *) dpstart);
+diff --git a/include/grub/efi/api.h b/include/grub/efi/api.h
+index 0c15cffa23c..3bff70d1c0e 100644
+--- a/include/grub/efi/api.h
++++ b/include/grub/efi/api.h
+@@ -666,6 +666,7 @@ typedef struct grub_efi_device_path grub_efi_device_path_protocol_t;
+ #define GRUB_EFI_DEVICE_PATH_TYPE(dp)		((dp)->type & 0x7f)
+ #define GRUB_EFI_DEVICE_PATH_SUBTYPE(dp)	((dp)->subtype)
+ #define GRUB_EFI_DEVICE_PATH_LENGTH(dp)		((dp)->length)
++#define GRUB_EFI_DEVICE_PATH_VALID(dp)		((dp) != NULL && GRUB_EFI_DEVICE_PATH_LENGTH (dp) >= 4)
+ 
+ /* The End of Device Path nodes.  */
+ #define GRUB_EFI_END_DEVICE_PATH_TYPE			(0xff & 0x7f)
+@@ -674,13 +675,16 @@ typedef struct grub_efi_device_path grub_efi_device_path_protocol_t;
+ #define GRUB_EFI_END_THIS_DEVICE_PATH_SUBTYPE		0x01
+ 
+ #define GRUB_EFI_END_ENTIRE_DEVICE_PATH(dp)	\
+-  (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_END_DEVICE_PATH_TYPE \
+-   && (GRUB_EFI_DEVICE_PATH_SUBTYPE (dp) \
+-       == GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE))
++  (!GRUB_EFI_DEVICE_PATH_VALID (dp) || \
++   (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_END_DEVICE_PATH_TYPE \
++    && (GRUB_EFI_DEVICE_PATH_SUBTYPE (dp) \
++	== GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE)))
+ 
+ #define GRUB_EFI_NEXT_DEVICE_PATH(dp)	\
+-  ((grub_efi_device_path_t *) ((char *) (dp) \
+-                               + GRUB_EFI_DEVICE_PATH_LENGTH (dp)))
++  (GRUB_EFI_DEVICE_PATH_VALID (dp) \
++   ? ((grub_efi_device_path_t *) \
++      ((char *) (dp) + GRUB_EFI_DEVICE_PATH_LENGTH (dp))) \
++   : NULL)
+ 
+ /* Hardware Device Path.  */
+ #define GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE		1

0229-Fix-a-regression-caused-by-efi-fix-some-malformed-de.patch

@@ -0,0 +1,85 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Chris Coulson <chris.coulson@canonical.com>
+Date: Wed, 22 Jul 2020 17:06:04 +0100
+Subject: [PATCH] Fix a regression caused by "efi: fix some malformed device
+ path arithmetic errors"
+
+This commit introduced a bogus check inside copy_file_path to
+determine whether the destination grub_efi_file_path_device_path_t
+was valid before anything was copied to it. Depending on the
+contents of the heap buffer, this check could fail which would
+result in copy_file_path returning early.
+
+Without any error propagated to the caller, make_file_path would
+then try to advance the invalid device path node with
+GRUB_EFI_NEXT_DEVICE_PATH, which would also fail, returning a NULL
+pointer that would subsequently be dereferenced.
+
+Remove the bogus check, and also propagate errors from copy_file_path.
+---
+ grub-core/loader/efi/chainloader.c | 26 ++++++++++++++------------
+ 1 file changed, 14 insertions(+), 12 deletions(-)
+
+diff --git a/grub-core/loader/efi/chainloader.c b/grub-core/loader/efi/chainloader.c
+index c2411b6dab2..8b99cf23e9d 100644
+--- a/grub-core/loader/efi/chainloader.c
++++ b/grub-core/loader/efi/chainloader.c
+@@ -115,7 +115,7 @@ grub_chainloader_boot (void)
+   return grub_errno;
+ }
+ 
+-static void
++static grub_err_t
+ copy_file_path (grub_efi_file_path_device_path_t *fp,
+ 		const char *str, grub_efi_uint16_t len)
+ {
+@@ -125,15 +125,9 @@ copy_file_path (grub_efi_file_path_device_path_t *fp,
+   fp->header.type = GRUB_EFI_MEDIA_DEVICE_PATH_TYPE;
+   fp->header.subtype = GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE;
+ 
+-  if (!GRUB_EFI_DEVICE_PATH_VALID ((grub_efi_device_path_t *)fp))
+-    {
+-      grub_error (GRUB_ERR_BAD_ARGUMENT, "EFI Device Path is invalid");
+-      return;
+-    }
+-
+   path_name = grub_calloc (len, GRUB_MAX_UTF16_PER_UTF8 * sizeof (*path_name));
+   if (!path_name)
+-    return;
++    return grub_error (GRUB_ERR_OUT_OF_MEMORY, "failed to allocate path buffer");
+ 
+   size = grub_utf8_to_utf16 (path_name, len * GRUB_MAX_UTF16_PER_UTF8,
+ 			     (const grub_uint8_t *) str, len, 0);
+@@ -145,6 +139,8 @@ copy_file_path (grub_efi_file_path_device_path_t *fp,
+   /* File Path is NULL terminated */
+   fp->path_name[size++] = '\0';
+   fp->header.length = size * sizeof (grub_efi_char16_t) + sizeof (*fp);
++  grub_free (path_name);
++  return GRUB_ERR_NONE;
+ }
+ 
+ static grub_efi_device_path_t *
+@@ -202,13 +198,19 @@ make_file_path (grub_efi_device_path_t *dp, const char *filename)
+   /* Fill the file path for the directory.  */
+   d = (grub_efi_device_path_t *) ((char *) file_path
+ 				  + ((char *) d - (char *) dp));
+-  copy_file_path ((grub_efi_file_path_device_path_t *) d,
+-		  dir_start, dir_end - dir_start);
++  if (copy_file_path ((grub_efi_file_path_device_path_t *) d,
++		      dir_start, dir_end - dir_start) != GRUB_ERR_NONE)
++    {
++    fail:
++      grub_free (file_path);
++      return 0;
++    }
+ 
+   /* Fill the file path for the file.  */
+   d = GRUB_EFI_NEXT_DEVICE_PATH (d);
+-  copy_file_path ((grub_efi_file_path_device_path_t *) d,
+-		  dir_end + 1, grub_strlen (dir_end + 1));
++  if (copy_file_path ((grub_efi_file_path_device_path_t *) d,
++		      dir_end + 1, grub_strlen (dir_end + 1)) != GRUB_ERR_NONE)
++    goto fail;
+ 
+   /* Fill the end of device path nodes.  */
+   d = GRUB_EFI_NEXT_DEVICE_PATH (d);

0230-efi-Fix-use-after-free-in-halt-reboot-path.patch

@@ -0,0 +1,162 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alexey Makhalov <amakhalov@vmware.com>
+Date: Mon, 20 Jul 2020 23:03:05 +0000
+Subject: [PATCH] efi: Fix use-after-free in halt/reboot path
+
+commit 92bfc33db984 ("efi: Free malloc regions on exit")
+introduced memory freeing in grub_efi_fini(), which is
+used not only by exit path but by halt/reboot one as well.
+As result of memory freeing, code and data regions used by
+modules, such as halt, reboot, acpi (used by halt) also got
+freed. After return to module code, CPU executes, filled
+by UEFI firmware (tested with edk2), 0xAFAFAFAF pattern as
+a code. Which leads to #UD exception later.
+
+grub> halt
+!!!! X64 Exception Type - 06(#UD - Invalid Opcode)  CPU Apic ID - 00000000 !!!!
+RIP  - 0000000003F4EC28, CS  - 0000000000000038, RFLAGS - 0000000000200246
+RAX  - 0000000000000000, RCX - 00000000061DA188, RDX - 0A74C0854DC35D41
+RBX  - 0000000003E10E08, RSP - 0000000007F0F860, RBP - 0000000000000000
+RSI  - 00000000064DB768, RDI - 000000000832C5C3
+R8   - 0000000000000002, R9  - 0000000000000000, R10 - 00000000061E2E52
+R11  - 0000000000000020, R12 - 0000000003EE5C1F, R13 - 00000000061E0FF4
+R14  - 0000000003E10D80, R15 - 00000000061E2F60
+DS   - 0000000000000030, ES  - 0000000000000030, FS  - 0000000000000030
+GS   - 0000000000000030, SS  - 0000000000000030
+CR0  - 0000000080010033, CR2 - 0000000000000000, CR3 - 0000000007C01000
+CR4  - 0000000000000668, CR8 - 0000000000000000
+DR0  - 0000000000000000, DR1 - 0000000000000000, DR2 - 0000000000000000
+DR3  - 0000000000000000, DR6 - 00000000FFFF0FF0, DR7 - 0000000000000400
+GDTR - 00000000079EEA98 0000000000000047, LDTR - 0000000000000000
+IDTR - 0000000007598018 0000000000000FFF,   TR - 0000000000000000
+FXSAVE_STATE - 0000000007F0F4C0
+
+Proposal here is to continue to free allocated memory for
+exit boot services path but keep it for halt/reboot path
+as it won't be much security concern here.
+Introduced GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY
+loader flag to be used by efi halt/reboot path.
+
+Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
+Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
+---
+ grub-core/kern/arm/efi/init.c   | 3 +++
+ grub-core/kern/arm64/efi/init.c | 3 +++
+ grub-core/kern/efi/efi.c        | 3 ++-
+ grub-core/kern/efi/init.c       | 1 -
+ grub-core/kern/i386/efi/init.c  | 9 +++++++--
+ grub-core/kern/ia64/efi/init.c  | 9 +++++++--
+ grub-core/lib/efi/halt.c        | 3 ++-
+ include/grub/loader.h           | 1 +
+ 8 files changed, 25 insertions(+), 7 deletions(-)
+
+diff --git a/grub-core/kern/arm/efi/init.c b/grub-core/kern/arm/efi/init.c
+index 06df60e2f0e..40c3b467fc6 100644
+--- a/grub-core/kern/arm/efi/init.c
++++ b/grub-core/kern/arm/efi/init.c
+@@ -71,4 +71,7 @@ grub_machine_fini (int flags)
+   efi_call_1 (b->close_event, tmr_evt);
+ 
+   grub_efi_fini ();
++
++  if (!(flags & GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY))
++    grub_efi_memory_fini ();
+ }
+diff --git a/grub-core/kern/arm64/efi/init.c b/grub-core/kern/arm64/efi/init.c
+index 6224999ec9c..5010caefd66 100644
+--- a/grub-core/kern/arm64/efi/init.c
++++ b/grub-core/kern/arm64/efi/init.c
+@@ -57,4 +57,7 @@ grub_machine_fini (int flags)
+     return;
+ 
+   grub_efi_fini ();
++
++  if (!(flags & GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY))
++    grub_efi_memory_fini ();
+ }
+diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c
+index 969d13dd3f8..1a52bdacac5 100644
+--- a/grub-core/kern/efi/efi.c
++++ b/grub-core/kern/efi/efi.c
+@@ -157,7 +157,8 @@ grub_efi_get_loaded_image (grub_efi_handle_t image_handle)
+ void
+ grub_reboot (void)
+ {
+-  grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
++  grub_machine_fini (GRUB_LOADER_FLAG_NORETURN |
++		     GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY);
+   efi_call_4 (grub_efi_system_table->runtime_services->reset_system,
+               GRUB_EFI_RESET_COLD, GRUB_EFI_SUCCESS, 0, NULL);
+   for (;;) ;
+diff --git a/grub-core/kern/efi/init.c b/grub-core/kern/efi/init.c
+index d1afa3af11e..2ffb5205dda 100644
+--- a/grub-core/kern/efi/init.c
++++ b/grub-core/kern/efi/init.c
+@@ -131,5 +131,4 @@ grub_efi_fini (void)
+ {
+   grub_efidisk_fini ();
+   grub_console_fini ();
+-  grub_efi_memory_fini ();
+ }
+diff --git a/grub-core/kern/i386/efi/init.c b/grub-core/kern/i386/efi/init.c
+index a28316cc640..46476e27eae 100644
+--- a/grub-core/kern/i386/efi/init.c
++++ b/grub-core/kern/i386/efi/init.c
+@@ -38,6 +38,11 @@ grub_machine_init (void)
+ void
+ grub_machine_fini (int flags)
+ {
+-  if (flags & GRUB_LOADER_FLAG_NORETURN)
+-    grub_efi_fini ();
++  if (!(flags & GRUB_LOADER_FLAG_NORETURN))
++    return;
++
++  grub_efi_fini ();
++
++  if (!(flags & GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY))
++    grub_efi_memory_fini ();
+ }
+diff --git a/grub-core/kern/ia64/efi/init.c b/grub-core/kern/ia64/efi/init.c
+index b5ecbd09121..f1965571b1d 100644
+--- a/grub-core/kern/ia64/efi/init.c
++++ b/grub-core/kern/ia64/efi/init.c
+@@ -70,6 +70,11 @@ grub_machine_init (void)
+ void
+ grub_machine_fini (int flags)
+ {
+-  if (flags & GRUB_LOADER_FLAG_NORETURN)
+-    grub_efi_fini ();
++  if (!(flags & GRUB_LOADER_FLAG_NORETURN))
++    return;
++
++  grub_efi_fini ();
++
++  if (!(flags & GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY))
++    grub_efi_memory_fini ();
+ }
+diff --git a/grub-core/lib/efi/halt.c b/grub-core/lib/efi/halt.c
+index e9441c844ac..a69a77681e3 100644
+--- a/grub-core/lib/efi/halt.c
++++ b/grub-core/lib/efi/halt.c
+@@ -28,7 +28,8 @@
+ void
+ grub_halt (void)
+ {
+-  grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
++  grub_machine_fini (GRUB_LOADER_FLAG_NORETURN |
++		     GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY);
+ #if !defined(__ia64__) && !defined(__arm__) && !defined(__aarch64__)
+   grub_acpi_halt ();
+ #endif
+diff --git a/include/grub/loader.h b/include/grub/loader.h
+index 7f82a499fd9..b208642821b 100644
+--- a/include/grub/loader.h
++++ b/include/grub/loader.h
+@@ -33,6 +33,7 @@ enum
+ {
+   GRUB_LOADER_FLAG_NORETURN = 1,
+   GRUB_LOADER_FLAG_PXE_NOT_UNLOAD = 2,
++  GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY = 4,
+ };
+ 
+ void EXPORT_FUNC (grub_loader_set) (grub_err_t (*boot) (void),

0231-efi-dhcp-fix-some-allocation-error-checking.patch

@@ -0,0 +1,37 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Sun, 19 Jul 2020 17:11:06 -0400
+Subject: [PATCH] efi+dhcp: fix some allocation error checking.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+---
+ grub-core/net/efi/dhcp.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+diff --git a/grub-core/net/efi/dhcp.c b/grub-core/net/efi/dhcp.c
+index dbef63d8c08..e5c79b748b0 100644
+--- a/grub-core/net/efi/dhcp.c
++++ b/grub-core/net/efi/dhcp.c
+@@ -80,7 +80,7 @@ grub_efi_dhcp4_parse_dns (grub_efi_dhcp4_protocol_t *dhcp4, grub_efi_dhcp4_packe
+   if (status != GRUB_EFI_BUFFER_TOO_SMALL)
+     return NULL;
+ 
+-  option_list = grub_malloc (option_count * sizeof(*option_list));
++  option_list = grub_calloc (option_count, sizeof(*option_list));
+   if (!option_list)
+     return NULL;
+ 
+@@ -360,8 +360,11 @@ grub_cmd_efi_bootp6 (struct grub_command *cmd __attribute__ ((unused)),
+ 
+ 	if (status == GRUB_EFI_BUFFER_TOO_SMALL && count)
+ 	  {
+-	    options = grub_malloc (count * sizeof(*options));
+-	    status = efi_call_4 (dev->dhcp6->parse, dev->dhcp6, mode.ia->reply_packet, &count, options);
++	    options = grub_calloc (count, sizeof(*options));
++	    if (options)
++	      status = efi_call_4 (dev->dhcp6->parse, dev->dhcp6, mode.ia->reply_packet, &count, options);
++	    else
++	      status = GRUB_EFI_OUT_OF_RESOURCES;
+ 	  }
+ 
+ 	if (status != GRUB_EFI_SUCCESS)

0232-efi-http-fix-some-allocation-error-checking.patch

@@ -0,0 +1,39 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Sun, 19 Jul 2020 17:14:15 -0400
+Subject: [PATCH] efi+http: fix some allocation error checking.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+---
+ grub-core/net/efi/http.c | 11 +++++++----
+ 1 file changed, 7 insertions(+), 4 deletions(-)
+
+diff --git a/grub-core/net/efi/http.c b/grub-core/net/efi/http.c
+index de351b2cd03..c56231105e4 100644
+--- a/grub-core/net/efi/http.c
++++ b/grub-core/net/efi/http.c
+@@ -392,8 +392,8 @@ grub_efihttp_open (struct grub_efi_net_device *dev,
+ 		  int type)
+ {
+   grub_err_t err;
+-  grub_off_t size;
+-  char *buf;
++  grub_off_t size = 0;
++  char *buf = NULL;
+   char *file_name = NULL;
+   const char *http_path;
+ 
+@@ -421,8 +421,11 @@ grub_efihttp_open (struct grub_efi_net_device *dev,
+       return err;
+     }
+ 
+-  buf = grub_malloc (size);
+-  efihttp_read (dev, buf, size);
++  if (size)
++    {
++      buf = grub_malloc (size);
++      efihttp_read (dev, buf, size);
++    }
+ 
+   file->size = size;
+   file->data = buf;

0233-efi-ip-46-_config.c-fix-some-potential-allocation-ov.patch

@@ -0,0 +1,127 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Sun, 19 Jul 2020 17:27:00 -0400
+Subject: [PATCH] efi/ip[46]_config.c: fix some potential allocation overflows
+
+In theory all of this data comes from the firmware stack and it should
+be safe, but it's better to be paranoid.
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+---
+ grub-core/net/efi/ip4_config.c | 25 ++++++++++++++++++-------
+ grub-core/net/efi/ip6_config.c | 13 ++++++++++---
+ 2 files changed, 28 insertions(+), 10 deletions(-)
+
+diff --git a/grub-core/net/efi/ip4_config.c b/grub-core/net/efi/ip4_config.c
+index 38e2a04747a..000bb47ace8 100644
+--- a/grub-core/net/efi/ip4_config.c
++++ b/grub-core/net/efi/ip4_config.c
+@@ -4,15 +4,20 @@
+ #include <grub/misc.h>
+ #include <grub/net/efi.h>
+ #include <grub/charset.h>
++#include <grub/safemath.h>
+ 
+ char *
+ grub_efi_hw_address_to_string (grub_efi_uint32_t hw_address_size, grub_efi_mac_address_t hw_address)
+ {
+   char *hw_addr, *p;
+-  int sz, s;
+-  int i;
++  grub_size_t sz, s, i;
+ 
+-  sz = (int)hw_address_size * (sizeof ("XX:") - 1) + 1;
++  if (grub_mul (hw_address_size, sizeof ("XX:") - 1, &sz) ||
++      grub_add (sz, 1, &sz))
++    {
++      grub_errno = GRUB_ERR_OUT_OF_RANGE;
++      return NULL;
++    }
+ 
+   hw_addr = grub_malloc (sz);
+   if (!hw_addr)
+@@ -20,7 +25,7 @@ grub_efi_hw_address_to_string (grub_efi_uint32_t hw_address_size, grub_efi_mac_a
+ 
+   p = hw_addr;
+   s = sz;
+-  for (i = 0; i < (int)hw_address_size; i++)
++  for (i = 0; i < hw_address_size; i++)
+     {
+       grub_snprintf (p, sz, "%02x:", hw_address[i]);
+       p +=  sizeof ("XX:") - 1;
+@@ -227,14 +232,20 @@ grub_efi_ip4_interface_route_table (struct grub_efi_net_device *dev)
+ {
+   grub_efi_ip4_config2_interface_info_t *interface_info;
+   char **ret;
+-  int i, id;
++  int id;
++  grub_size_t i, nmemb;
+ 
+   interface_info = efi_ip4_config_interface_info (dev->ip4_config);
+   if (!interface_info)
+     return NULL;
+ 
+-  ret = grub_malloc (sizeof (*ret) * (interface_info->route_table_size + 1));
++  if (grub_add (interface_info->route_table_size, 1, &nmemb))
++    {
++      grub_errno = GRUB_ERR_OUT_OF_RANGE;
++      return NULL;
++    }
+ 
++  ret = grub_calloc (nmemb, sizeof (*ret));
+   if (!ret)
+     {
+       grub_free (interface_info);
+@@ -242,7 +253,7 @@ grub_efi_ip4_interface_route_table (struct grub_efi_net_device *dev)
+     }
+ 
+   id = 0;
+-  for (i = 0; i < (int)interface_info->route_table_size; i++)
++  for (i = 0; i < interface_info->route_table_size; i++)
+     {
+       char *subnet, *gateway, *mask;
+       grub_uint32_t u32_subnet, u32_gateway;
+diff --git a/grub-core/net/efi/ip6_config.c b/grub-core/net/efi/ip6_config.c
+index e0e00c23d21..1c5415d7185 100644
+--- a/grub-core/net/efi/ip6_config.c
++++ b/grub-core/net/efi/ip6_config.c
+@@ -3,6 +3,7 @@
+ #include <grub/misc.h>
+ #include <grub/net/efi.h>
+ #include <grub/charset.h>
++#include <grub/safemath.h>
+ 
+ char *
+ grub_efi_ip6_address_to_string (grub_efi_pxe_ipv6_address_t *address)
+@@ -228,14 +229,20 @@ grub_efi_ip6_interface_route_table (struct grub_efi_net_device *dev)
+ {
+   grub_efi_ip6_config_interface_info_t *interface_info;
+   char **ret;
+-  int i, id;
++  int id;
++  grub_size_t i, nmemb;
+ 
+   interface_info = efi_ip6_config_interface_info (dev->ip6_config);
+   if (!interface_info)
+     return NULL;
+ 
+-  ret = grub_malloc (sizeof (*ret) * (interface_info->route_count + 1));
++  if (grub_add (interface_info->route_count, 1, &nmemb))
++    {
++      grub_errno = GRUB_ERR_OUT_OF_RANGE;
++      return NULL;
++    }
+ 
++  ret = grub_calloc (nmemb, sizeof (*ret));
+   if (!ret)
+     {
+       grub_free (interface_info);
+@@ -243,7 +250,7 @@ grub_efi_ip6_interface_route_table (struct grub_efi_net_device *dev)
+     }
+ 
+   id = 0;
+-  for (i = 0; i < (int)interface_info->route_count ; i++)
++  for (i = 0; i < interface_info->route_count ; i++)
+     {
+       char *gateway, *destination;
+       grub_uint64_t u64_gateway[2];

0234-efilinux-Fix-integer-overflows-in-grub_cmd_initrd.patch

@@ -0,0 +1,48 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Colin Watson <cjwatson@debian.org>
+Date: Fri, 24 Jul 2020 17:18:09 +0100
+Subject: [PATCH] efilinux: Fix integer overflows in grub_cmd_initrd
+
+These could be triggered by an extremely large number of arguments to
+the initrd command on 32-bit architectures, or a crafted filesystem with
+very large files on any architecture.
+
+Signed-off-by: Colin Watson <cjwatson@debian.org>
+---
+ grub-core/loader/i386/efi/linux.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
+index 65d1b5cc034..2bd6663625d 100644
+--- a/grub-core/loader/i386/efi/linux.c
++++ b/grub-core/loader/i386/efi/linux.c
+@@ -29,6 +29,7 @@
+ #include <grub/efi/linux.h>
+ #include <grub/tpm.h>
+ #include <grub/cpu/efi/memory.h>
++#include <grub/safemath.h>
+ 
+ GRUB_MOD_LICENSE ("GPLv3+");
+ 
+@@ -207,7 +208,7 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+       goto fail;
+     }
+ 
+-  files = grub_zalloc (argc * sizeof (files[0]));
++  files = grub_calloc (argc, sizeof (files[0]));
+   if (!files)
+     goto fail;
+ 
+@@ -218,7 +219,11 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+       if (! files[i])
+         goto fail;
+       nfiles++;
+-      size += ALIGN_UP (grub_file_size (files[i]), 4);
++      if (grub_add (size, ALIGN_UP (grub_file_size (files[i]), 4), &size))
++	{
++	  grub_error (GRUB_ERR_OUT_OF_RANGE, N_("overflow is detected"));
++	  goto fail;
++	}
+     }
+ 
+   initrd_mem = kernel_alloc(size, N_("can't allocate initrd"));

0235-linux-loader-avoid-overflow-on-initrd-size-calculati.patch

@@ -0,0 +1,25 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Peter Jones <pjones@redhat.com>
+Date: Fri, 24 Jul 2020 13:57:27 -0400
+Subject: [PATCH] linux loader: avoid overflow on initrd size calculation
+
+Signed-off-by: Peter Jones <pjones@redhat.com>
+---
+ grub-core/loader/linux.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/loader/linux.c b/grub-core/loader/linux.c
+index c2c7cfcd0fd..61a2e144db0 100644
+--- a/grub-core/loader/linux.c
++++ b/grub-core/loader/linux.c
+@@ -152,8 +152,8 @@ grub_initrd_init (int argc, char *argv[],
+   initrd_ctx->nfiles = 0;
+   initrd_ctx->components = 0;
+ 
+-  initrd_ctx->components = grub_zalloc (argc
+-					* sizeof (initrd_ctx->components[0]));
++  initrd_ctx->components = grub_calloc (argc,
++					sizeof (initrd_ctx->components[0]));
+   if (!initrd_ctx->components)
+     return grub_errno;
+ 

0236-linuxefi-fail-kernel-validation-without-shim-protoco.patch

@@ -0,0 +1,97 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Dimitri John Ledkov <xnox@ubuntu.com>
+Date: Wed, 22 Jul 2020 11:31:43 +0100
+Subject: [PATCH] linuxefi: fail kernel validation without shim protocol.
+
+If certificates that signed grub are installed into db, grub can be
+booted directly. It will then boot any kernel without signature
+validation. The booted kernel will think it was booted in secureboot
+mode and will implement lockdown, yet it could have been tampered.
+
+This version of the patch skips calling verification, when booted
+without secureboot. And is indented with gnu ident.
+
+CVE-2020-15705
+
+Reported-by: Mathieu Trudel-Lapierre <cyphermox@ubuntu.com>
+Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
+---
+ grub-core/loader/arm64/linux.c     | 12 ++++++++----
+ grub-core/loader/efi/chainloader.c |  1 +
+ grub-core/loader/efi/linux.c       |  1 +
+ grub-core/loader/i386/efi/linux.c  | 13 ++++++++-----
+ 4 files changed, 18 insertions(+), 9 deletions(-)
+
+diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c
+index 628b320618c..e8ce560a2d2 100644
+--- a/grub-core/loader/arm64/linux.c
++++ b/grub-core/loader/arm64/linux.c
+@@ -381,11 +381,15 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+ 
+   grub_dprintf ("linux", "kernel @ %p\n", kernel_addr);
+ 
+-  rc = grub_linuxefi_secure_validate (kernel_addr, kernel_size);
+-  if (rc < 0)
++  if (grub_efi_secure_boot ())
+     {
+-      grub_error (GRUB_ERR_INVALID_COMMAND, N_("%s has invalid signature"), argv[0]);
+-      goto fail;
++      rc = grub_linuxefi_secure_validate (kernel_addr, kernel_size);
++      if (rc <= 0)
++	{
++	  grub_error (GRUB_ERR_INVALID_COMMAND,
++		      N_("%s has invalid signature"), argv[0]);
++	  goto fail;
++	}
+     }
+ 
+   pe = (void *)((unsigned long)kernel_addr + lh.hdr_offset);
+diff --git a/grub-core/loader/efi/chainloader.c b/grub-core/loader/efi/chainloader.c
+index 8b99cf23e9d..a93edc975cd 100644
+--- a/grub-core/loader/efi/chainloader.c
++++ b/grub-core/loader/efi/chainloader.c
+@@ -1079,6 +1079,7 @@ grub_cmd_chainloader (grub_command_t cmd __attribute__ ((unused)),
+ 
+       return 0;
+     }
++  // -1 fall-through to fail
+ 
+ fail:
+   if (dev)
+diff --git a/grub-core/loader/efi/linux.c b/grub-core/loader/efi/linux.c
+index b56ea0bc041..5f326eb4f53 100644
+--- a/grub-core/loader/efi/linux.c
++++ b/grub-core/loader/efi/linux.c
+@@ -33,6 +33,7 @@ struct grub_efi_shim_lock
+ };
+ typedef struct grub_efi_shim_lock grub_efi_shim_lock_t;
+ 
++// Returns 1 on success, -1 on error, 0 when not available
+ int
+ grub_linuxefi_secure_validate (void *data, grub_uint32_t size)
+ {
+diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
+index 2bd6663625d..cc6a503adb1 100644
+--- a/grub-core/loader/i386/efi/linux.c
++++ b/grub-core/loader/i386/efi/linux.c
+@@ -313,12 +313,15 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+   grub_tpm_measure (kernel, filelen, GRUB_BINARY_PCR, "grub_linuxefi", "Kernel");
+   grub_print_error();
+ 
+-  rc = grub_linuxefi_secure_validate (kernel, filelen);
+-  if (rc < 0)
++  if (grub_efi_secure_boot ())
+     {
+-      grub_error (GRUB_ERR_INVALID_COMMAND, N_("%s has invalid signature"),
+-		  argv[0]);
+-      goto fail;
++      rc = grub_linuxefi_secure_validate (kernel, filelen);
++      if (rc <= 0)
++	{
++	  grub_error (GRUB_ERR_INVALID_COMMAND,
++		      N_("%s has invalid signature"), argv[0]);
++	  goto fail;
++	}
+     }
+ 
+   lh = (struct linux_i386_kernel_header *)kernel;

0237-linux-Fix-integer-overflows-in-initrd-size-handling.patch

@@ -0,0 +1,166 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Colin Watson <cjwatson@debian.org>
+Date: Sat, 25 Jul 2020 12:15:37 +0100
+Subject: [PATCH] linux: Fix integer overflows in initrd size handling
+
+These could be triggered by a crafted filesystem with very large files.
+
+Fixes: CVE-2020-15707
+
+Signed-off-by: Colin Watson <cjwatson@debian.org>
+Reviewed-by: Jan Setje-Eilers <jan.setjeeilers@oracle.com>
+---
+ grub-core/loader/linux.c | 75 ++++++++++++++++++++++++++++++++++--------------
+ 1 file changed, 54 insertions(+), 21 deletions(-)
+
+diff --git a/grub-core/loader/linux.c b/grub-core/loader/linux.c
+index 61a2e144db0..49d2948644e 100644
+--- a/grub-core/loader/linux.c
++++ b/grub-core/loader/linux.c
+@@ -5,6 +5,7 @@
+ #include <grub/file.h>
+ #include <grub/mm.h>
+ #include <grub/tpm.h>
++#include <grub/safemath.h>
+ 
+ struct newc_head
+ {
+@@ -99,13 +100,13 @@ free_dir (struct dir *root)
+   grub_free (root);
+ }
+ 
+-static grub_size_t
++static grub_err_t
+ insert_dir (const char *name, struct dir **root,
+-	    grub_uint8_t *ptr)
++	    grub_uint8_t *ptr, grub_size_t *size)
+ {
+   struct dir *cur, **head = root;
+   const char *cb, *ce = name;
+-  grub_size_t size = 0;
++  *size = 0;
+   while (1)
+     {
+       for (cb = ce; *cb == '/'; cb++);
+@@ -131,14 +132,22 @@ insert_dir (const char *name, struct dir **root,
+ 	      ptr = make_header (ptr, name, ce - name,
+ 				 040777, 0);
+ 	    }
+-	  size += ALIGN_UP ((ce - (char *) name)
+-			    + sizeof (struct newc_head), 4);
++	  if (grub_add (*size,
++		        ALIGN_UP ((ce - (char *) name)
++				  + sizeof (struct newc_head), 4),
++			size))
++	    {
++	      grub_error (GRUB_ERR_OUT_OF_RANGE, N_("overflow is detected"));
++	      grub_free (n->name);
++	      grub_free (n);
++	      return grub_errno;
++	    }
+ 	  *head = n;
+ 	  cur = n;
+ 	}
+       root = &cur->next;
+     }
+-  return size;
++  return GRUB_ERR_NONE;
+ }
+ 
+ grub_err_t
+@@ -174,27 +183,33 @@ grub_initrd_init (int argc, char *argv[],
+ 	  eptr = grub_strchr (ptr, ':');
+ 	  if (eptr)
+ 	    {
+-	      grub_file_filter_disable_compression ();
++	      grub_size_t dir_size, name_len;
++
+ 	      initrd_ctx->components[i].newc_name = grub_strndup (ptr, eptr - ptr);
+-	      if (!initrd_ctx->components[i].newc_name)
++	      if (!initrd_ctx->components[i].newc_name ||
++		  insert_dir (initrd_ctx->components[i].newc_name, &root, 0,
++			      &dir_size))
+ 		{
+ 		  grub_initrd_close (initrd_ctx);
+ 		  return grub_errno;
+ 		}
+-	      initrd_ctx->size
+-		+= ALIGN_UP (sizeof (struct newc_head)
+-			    + grub_strlen (initrd_ctx->components[i].newc_name),
+-			     4);
+-	      initrd_ctx->size += insert_dir (initrd_ctx->components[i].newc_name,
+-					      &root, 0);
++	      name_len = grub_strlen (initrd_ctx->components[i].newc_name);
++	      if (grub_add (initrd_ctx->size,
++			    ALIGN_UP (sizeof (struct newc_head) + name_len, 4),
++			    &initrd_ctx->size) ||
++		  grub_add (initrd_ctx->size, dir_size, &initrd_ctx->size))
++		goto overflow;
+ 	      newc = 1;
+ 	      fname = eptr + 1;
+ 	    }
+ 	}
+       else if (newc)
+ 	{
+-	  initrd_ctx->size += ALIGN_UP (sizeof (struct newc_head)
+-					+ sizeof ("TRAILER!!!") - 1, 4);
++	  if (grub_add (initrd_ctx->size,
++			ALIGN_UP (sizeof (struct newc_head)
++				  + sizeof ("TRAILER!!!") - 1, 4),
++			&initrd_ctx->size))
++	    goto overflow;
+ 	  free_dir (root);
+ 	  root = 0;
+ 	  newc = 0;
+@@ -209,19 +224,29 @@ grub_initrd_init (int argc, char *argv[],
+       initrd_ctx->nfiles++;
+       initrd_ctx->components[i].size
+ 	= grub_file_size (initrd_ctx->components[i].file);
+-      initrd_ctx->size += initrd_ctx->components[i].size;
++      if (grub_add (initrd_ctx->size, initrd_ctx->components[i].size,
++		    &initrd_ctx->size))
++	goto overflow;
+     }
+ 
+   if (newc)
+     {
+       initrd_ctx->size = ALIGN_UP (initrd_ctx->size, 4);
+-      initrd_ctx->size += ALIGN_UP (sizeof (struct newc_head)
+-				    + sizeof ("TRAILER!!!") - 1, 4);
++      if (grub_add (initrd_ctx->size,
++		    ALIGN_UP (sizeof (struct newc_head)
++			      + sizeof ("TRAILER!!!") - 1, 4),
++		    &initrd_ctx->size))
++	goto overflow;
+       free_dir (root);
+       root = 0;
+     }
+   
+   return GRUB_ERR_NONE;
++
++overflow:
++  free_dir (root);
++  grub_initrd_close (initrd_ctx);
++  return grub_error (GRUB_ERR_OUT_OF_RANGE, N_("overflow is detected"));
+ }
+ 
+ grub_size_t
+@@ -262,8 +287,16 @@ grub_initrd_load (struct grub_linux_initrd_context *initrd_ctx,
+ 
+       if (initrd_ctx->components[i].newc_name)
+ 	{
+-	  ptr += insert_dir (initrd_ctx->components[i].newc_name,
+-			     &root, ptr);
++	  grub_size_t dir_size;
++
++	  if (insert_dir (initrd_ctx->components[i].newc_name, &root, ptr,
++			  &dir_size))
++	    {
++	      free_dir (root);
++	      grub_initrd_close (initrd_ctx);
++	      return grub_errno;
++	    }
++	  ptr += dir_size;
+ 	  ptr = make_header (ptr, initrd_ctx->components[i].newc_name,
+ 			     grub_strlen (initrd_ctx->components[i].newc_name),
+ 			     0100777,

99-grub-mkconfig.install

@@ -4,10 +4,30 @@ if ! [[ $KERNEL_INSTALL_MACHINE_ID ]]; then
     exit 0
 fi
 
-ARCH=$(uname -m)
+# PV and PVH Xen DomU guests boot with pygrub that doesn't have BLS support,
+# also Xen Dom0 use the menuentries from 20_linux_xen and not the ones from
+# 10_linux. So BLS support needs to be disabled for both Xen Dom0 and DomU.
+if [[ -e /sys/hypervisor/type ]] && grep -q "^xen$" /sys/hypervisor/type; then
+    RUN_MKCONFIG=true
+    DISABLE_BLS=true
+fi
 
-# Is only needed for ppc64* since we can't assume a BLS capable bootloader there
-if [[ $ARCH != "ppc64" && $ARCH != "ppc64le" ]]; then
+ARCH=$(uname -m)
+# Older ppc64le OPAL firmware don't have BLS support so grub2-mkconfig has to
+# be run to generate a GRUB config file that contains menuentry commands.
+if [[ $ARCH = "ppc64le" ]]; then
+    RUN_MKCONFIG=true
+fi
+
+if [[ $DISABLE_BLS = "true" ]]; then
+    if grep -q '^GRUB_ENABLE_BLSCFG="*true"*\s*$' /etc/default/grub; then
+	sed -i 's/^GRUB_ENABLE_BLSCFG=.*/GRUB_ENABLE_BLSCFG=false/' /etc/default/grub
+    fi
+fi
+
+# A traditional grub configuration file needs to be generated only in the case when
+# the bootloaders are not capable of populating a menu entry from the BLS fragments.
+if [[ $RUN_MKCONFIG != "true" ]]; then
     exit 0
 fi
 

grub.macros

@@ -373,8 +373,13 @@ done								\
 	-p /EFI/%{efi_vendor} -d grub-core ${GRUB_MODULES}	\
 %{4}./grub-mkimage -O %{1} -o %{3}.orig				\\\
 	-p /EFI/BOOT -d grub-core ${GRUB_MODULES}		\
-%{expand:%%{pesign -s -i %%{2}.orig -o %%{2} -a %%{5} -c %%{6} -n %%{7}}}	\
-%{expand:%%{pesign -s -i %%{3}.orig -o %%{3} -a %%{5} -c %%{6} -n %%{7}}}	\
+%{expand:%%define ___pesign_client_cert %{?___pesign_client_cert}%{!?___pesign_client_cert:%{__pesign_client_cert}}} \
+%{?__pesign_client_cert:%{expand:%%define __pesign_client_cert %{___pesign_client_cert}}} \
+%{expand:%%{pesign -s -i %%{2}.orig -o %%{2}.onesig -a %%{5} -c %%{6} -n %%{7}}}	\
+%{expand:%%{pesign -s -i %%{3}.orig -o %%{3}.onesig -a %%{5} -c %%{6} -n %%{7}}}	\
+%{expand:%%define __pesign_client_cert grub2-signer} \
+%{expand:%%{pesign -s -i %%{2}.onesig -o %%{2} -a %%{5} -c %%{6} -n %%{7}}}	\
+%{expand:%%{pesign -s -i %%{3}.onesig -o %%{3} -a %%{5} -c %%{6} -n %%{7}}}	\
 %{nil}
 %else
 %define mkimage()						\

grub.patches

@@ -185,3 +185,53 @@ Patch0184: 0184-arm-Move-trampolines-into-code-section.patch
 Patch0185: 0185-arm-Align-section-alignment-with-manual-relocation-o.patch
 Patch0186: 0186-grub-core-loader-efi-fdt.c-Do-not-copy-random-memory.patch
 Patch0187: 0187-linux-efi-arm-fdt-break-FDT-extra-allocation-space-o.patch
+Patch0188: 0188-Don-t-add-a-class-option-to-menu-entries-generated-f.patch
+Patch0189: 0189-blscfg-Fix-typo-for-gfxpayload-variable-name.patch
+Patch0190: 0190-grub-set-bootflag-Update-comment-about-running-as-ro.patch
+Patch0191: 0191-grub-set-bootflag-Write-new-env-to-tmpfile-and-then-.patch
+Patch0192: 0192-grub.d-Fix-boot_indeterminate-getting-set-on-boot_su.patch
+Patch0193: 0193-10_linux.in-Also-use-GRUB_CMDLINE_LINUX_DEFAULT-to-s.patch
+Patch0194: 0194-Fix-savedefault-with-blscfg.patch
+Patch0195: 0195-blscfg-add-a-space-char-when-appending-fields-for-va.patch
+Patch0196: 0196-blscfg-Add-support-for-sorting-the-plus-higher-than-.patch
+Patch0197: 0197-blscfg-Always-use-the-root-variable-to-search-for-BL.patch
+Patch0198: 0198-blscfg-return-NULL-instead-of-a-zero-length-array-in.patch
+Patch0199: 0199-grub-switch-to-blscfg-Update-grub2-binary-in-ESP-for.patch
+Patch0200: 0200-grub-switch-to-blscfg-Only-mark-GRUB-as-BLS-supporte.patch
+Patch0201: 0201-grub-switch-to-blscfg-Use-install-to-copy-GRUB-binar.patch
+Patch0202: 0202-10_linux.in-Enable-BLS-configuration-if-new-kernel-p.patch
+Patch0203: 0203-envblk-Fix-buffer-overrun-when-attempting-to-shrink-.patch
+Patch0204: 0204-Forbid-the-devicetree-command-when-Secure-Boot-is-en.patch
+Patch0205: 0205-yylex-Make-lexer-fatal-errors-actually-be-fatal.patch
+Patch0206: 0206-safemath-Add-some-arithmetic-primitives-that-check-f.patch
+Patch0207: 0207-calloc-Make-sure-we-always-have-an-overflow-checking.patch
+Patch0208: 0208-calloc-Use-calloc-at-most-places.patch
+Patch0209: 0209-malloc-Use-overflow-checking-primitives-where-we-do-.patch
+Patch0210: 0210-iso9660-Don-t-leak-memory-on-realloc-failures.patch
+Patch0211: 0211-font-Do-not-load-more-than-one-NAME-section.patch
+Patch0212: 0212-gfxmenu-Fix-double-free-in-load_image.patch
+Patch0213: 0213-xnu-Fix-double-free-in-grub_xnu_devprop_add_property.patch
+Patch0214: 0214-lzma-Make-sure-we-don-t-dereference-past-array.patch
+Patch0215: 0215-term-Fix-overflow-on-user-inputs.patch
+Patch0216: 0216-udf-Fix-memory-leak.patch
+Patch0217: 0217-multiboot2-Fix-memory-leak-if-grub_create_loader_cmd.patch
+Patch0218: 0218-tftp-Do-not-use-priority-queue.patch
+Patch0219: 0219-multiboot2-Set-min-address-for-mbi-allocation-to-0x1.patch
+Patch0220: 0220-relocator-Protect-grub_relocator_alloc_chunk_addr-in.patch
+Patch0221: 0221-relocator-Protect-grub_relocator_alloc_chunk_align-m.patch
+Patch0222: 0222-script-Remove-unused-fields-from-grub_script_functio.patch
+Patch0223: 0223-script-Avoid-a-use-after-free-when-redefining-a-func.patch
+Patch0224: 0224-relocator-Fix-grub_relocator_alloc_chunk_align-top-m.patch
+Patch0225: 0225-hfsplus-fix-two-more-overflows.patch
+Patch0226: 0226-lvm-fix-two-more-potential-data-dependent-alloc-over.patch
+Patch0227: 0227-emu-make-grub_free-NULL-safe.patch
+Patch0228: 0228-efi-fix-some-malformed-device-path-arithmetic-errors.patch
+Patch0229: 0229-Fix-a-regression-caused-by-efi-fix-some-malformed-de.patch
+Patch0230: 0230-efi-Fix-use-after-free-in-halt-reboot-path.patch
+Patch0231: 0231-efi-dhcp-fix-some-allocation-error-checking.patch
+Patch0232: 0232-efi-http-fix-some-allocation-error-checking.patch
+Patch0233: 0233-efi-ip-46-_config.c-fix-some-potential-allocation-ov.patch
+Patch0234: 0234-efilinux-Fix-integer-overflows-in-grub_cmd_initrd.patch
+Patch0235: 0235-linux-loader-avoid-overflow-on-initrd-size-calculati.patch
+Patch0236: 0236-linuxefi-fail-kernel-validation-without-shim-protoco.patch
+Patch0237: 0237-linux-Fix-integer-overflows-in-initrd-size-handling.patch

grub2.spec

@@ -7,7 +7,7 @@
 Name:		grub2
 Epoch:		1
 Version:	2.02
-Release:	97%{?dist}
+Release:	110%{?dist}
 Summary:	Bootloader with support for Linux, Multiboot and more
 License:	GPLv3+
 URL:		http://www.gnu.org/software/grub/
@@ -518,6 +518,70 @@ rm -r /boot/grub2.tmp/ || :
 %endif
 
 %changelog
+* Mon Aug 10 2020 Peter Jones <pjones@redhat.com> - 2.02-110
+- Attempt to enable dual-signing in f31
+
+* Wed Jul 29 2020 Peter Jones <pjones@redhat.com> - 2.02-110
+- "Minor" bug fixes
+  CVE-2020-10713
+  CVE-2020-14308
+  CVE-2020-14309
+  CVE-2020-14310
+  CVE-2020-14311
+  CVE-2020-15705
+  CVE-2020-15706
+  CVE-2020-15707
+
+* Tue May 12 2020 Javier Martinez Canillas <javierm@redhat.com> - 2.02-109
+- Fix grub2-editenv segfault when attempting to shrink a variable
+
+* Thu Apr 16 2020 Javier Martinez Canillas <javierm@redhat.com> - 2.02-108
+- Make the grub-switch-to-blscfg and 10_linux scripts more robust
+
+* Thu Apr 02 2020 Javier Martinez Canillas <javierm@redhat.com> - 2.02-107
+- grub-switch-to-blscfg: Update grub2 binary in ESP for OSTree systems
+  Related: rhbz#1751272
+
+* Tue Mar 17 2020 Javier Martinez Canillas <javierm@redhat.com> - 2.02-106
+- Fix menu entries having an unneeded initrd command and other BLS fixes
+  Resolves: rhbz#1806022
+
+* Mon Jan 13 2020 Javier Martinez Canillas <javierm@redhat.com> - 2.02-105
+- 10_linux.in: Also use GRUB_CMDLINE_LINUX_DEFAULT to set kernelopts
+- Make the blscfg module honour the GRUB_SAVEDEFAULT option
+  Resolves: rhbz#1704926
+
+* Thu Dec 05 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.02-104
+- Drop patch fixing a corner case in BLS variable expansion
+  Related: rhbz#1779611
+
+* Wed Nov 27 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.02-103
+- blscfg: add a space char when appending fields for variable expansion
+- grub.d: Fix boot_indeterminate getting set on boot_success=0 boot
+
+* Tue Nov 26 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.02-102
+- grub-set-bootflag: Write new env to tmpfile and then rename (hdegoede)
+  Resolves: CVE-2019-14865
+  Resolves: rhbz#1776580
+
+* Wed Oct 16 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.02-101
+- 99-grub-mkconfig: Also disable BLS usage for Xen Dom0 hosts
+  Resolves: rhbz#1761799
+- blscfg: Fix typo for gfxpayload variable name
+  Resolves: rhbz#1706489
+
+* Thu Oct 10 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.02-100
+- 99-grub-mkconfig: Fix script condition to exit and remove ppc64 BE check
+  Related: rhbz#1703700
+
+* Wed Oct 09 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.02-99
+- 99-grub-mkconfig: Disable BLS usage for Xen DomU guests
+  Resolves: rhbz#1703700
+
+* Fri Oct 04 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.02-98
+- Don't add a class option to menu entries generated for ppc64le
+  Resolves: rhbz#1758225
+
 * Wed Aug 07 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.02-97
 - Include regexp module in EFI builds