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3 commits

Author SHA1 Message Date
Petr Machata
ce0735fffc Fix memory errors when %%p is used in printf 2015-04-16 13:40:06 +02:00
Petr Machata
ba87e2d283 Fix 1064406 - [abrt] ltrace: allocate_integer(): ltrace killed by SIGABRT 2014-02-13 16:07:31 +01:00
Petr Machata
58fc61d440 Properly check rindex call over pathname for NULL-ness 2014-01-15 18:08:05 +01:00
4 changed files with 120 additions and 1 deletions

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@ -0,0 +1,20 @@
diff -up ltrace-0.7.2/proc.c\~ ltrace-0.7.2/proc.c
--- ltrace-0.7.2/proc.c~ 2014-02-13 12:16:33.000000000 +0100
+++ ltrace-0.7.2/proc.c 2014-02-13 15:44:25.000000000 +0100
@@ -194,9 +197,11 @@ process_init(struct process *proc, const
goto fail;
}
- if (proc->leader != proc)
- return 0;
- if (process_init_main(proc) < 0) {
+ if (proc->leader != proc) {
+ proc->e_machine = proc->leader->e_machine;
+ proc->e_class = proc->leader->e_class;
+ get_arch_dep(proc);
+ } else if (process_init_main(proc) < 0) {
process_bare_destroy(proc, 0);
goto fail;
}
Diff finished. Thu Feb 13 15:50:21 2014

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@ -0,0 +1,29 @@
From aafb00b7d7751049b99cac3953b5021e4f474ac4 Mon Sep 17 00:00:00 2001
From: Petr Machata <pmachata@redhat.com>
Date: Tue, 8 Jan 2013 18:12:07 +0100
Subject: [PATCH] Don't add 1 to potentially NULL pointer comming from rindex
---
ltrace-elf.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/ltrace-elf.c b/ltrace-elf.c
index 1d0f769..29c204f 100644
--- a/ltrace-elf.c
+++ b/ltrace-elf.c
@@ -889,8 +889,10 @@ read_module(struct library *lib, struct process *proc,
goto fail;
library_set_soname(lib, soname, 1);
} else {
- const char *soname = rindex(lib->pathname, '/') + 1;
- if (soname == NULL)
+ const char *soname = rindex(lib->pathname, '/');
+ if (soname != NULL)
+ soname += 1;
+ else
soname = lib->pathname;
library_set_soname(lib, soname, 0);
}
--
1.7.6.5

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@ -0,0 +1,44 @@
From cae76962c7e0ec6119952addb36d1cf8d19f5228 Mon Sep 17 00:00:00 2001
From: Peter Wu <lekensteyn@gmail.com>
Date: Thu, 26 Sep 2013 00:55:57 +0200
Subject: [PATCH] Prevent freeing static-alloc'd memory for %p and %n in printf
The following code caused ltrace 0.7.3-1 to crash on Arch Linux because
an invalid pointer was passed to free():
printf("%p", &whatever);
In printf.c, the elt_info pointer was always a statically allocated
memory address from type_get_simple():
115 if (format_type == ARGTYPE_ARRAY ||
format_type == ARGTYPE_POINTER)
116 elt_info = type_get_simple(elt_type);
Therefore, do not assert that the caller form_next_param owns the
elt_info pointer.
Originally reported at
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=724253
Signed-off-by: Peter Wu <lekensteyn@gmail.com>
---
printf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/printf.c b/printf.c
index 9051d71..52b212c 100644
--- a/printf.c
+++ b/printf.c
@@ -168,7 +168,7 @@ form_next_param(struct param_enum *self,
type_init_pointer(infop, array, 1);
} else if (format_type == ARGTYPE_POINTER) {
- type_init_pointer(infop, elt_info, 1);
+ type_init_pointer(infop, elt_info, 0);
} else {
*infop = *type_get_simple(format_type);
--
2.1.0

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@ -1,7 +1,7 @@
Summary: Tracks runtime library calls from dynamically linked executables
Name: ltrace
Version: 0.7.2
Release: 7%{?dist}
Release: 10%{?dist}
URL: http://ltrace.alioth.debian.org/
License: GPLv2+
Group: Development/Debuggers
@ -27,6 +27,15 @@ Patch2: ltrace-0.7.2-unused-typedef.patch
# s390 set_instruction_pointer: Set highest bit in 31-bit tracer
Patch3: ltrace-0.7.2-s390-set_instruction_pointer.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=1044766
Patch4: ltrace-0.7.2-rindex_NULL.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=1064406
Patch5: ltrace-0.7.2-e_machine.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=1212314
Patch6: ltrace-0.7.2-static-free.patch
%description
Ltrace is a debugging program which runs a specified command until the
command exits. While the command is executing, ltrace intercepts and
@ -43,6 +52,9 @@ execution of processes.
%patch1 -p1
%patch2 -p1
%patch3 -p1
%patch4 -p1
%patch5 -p1
%patch6 -p1
%build
autoreconf -i
@ -68,6 +80,20 @@ echo ====================TESTING END=====================
%config(noreplace) %{_sysconfdir}/ltrace.conf
%changelog
* Thu Apr 16 2015 Petr Machata <pmachata@redhat.com> - 0.7.2-10
- Add an upstream patch that fixes memory errors when %%p is used in a
formatting string in printf-like calls.
(ltrace-0.7.2-static-free.patch)
* Thu Feb 13 2014 Petr Machata <pmachata@redhat.com> - 0.7.2-9
- Add an upstream patch that fixes missed initialization of some
fields in struct process after atteching to a multi-threaded
process. (ltrace-0.7.2-e_machine.patch)
* Wed Jan 15 2014 Petr Machata <pmachata@redhat.com> - 0.7.2-8
- Add an upstream patch for proper checking of rindex call over
pathname for NULL-ness. (ltrace-0.7.2-rindex_NULL.patch)
* Wed Aug 7 2013 Ville Skyttä <ville.skytta@iki.fi> - 0.7.2-7
- Install docs to %%{_pkgdocdir} where available (#992149).