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For PR 14055, add bounds check to _dl_show_auxv().

This commit is contained in:
Paul Pluzhnikov 2012-05-02 14:35:30 -07:00
parent ff8a695b6d
commit 171a70b4c0
3 changed files with 10 additions and 3 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2012-05-02 Paul Pluzhnikov <ppluzhnikov@google.com>
[BZ #14055]
* elf/dl-sysdep.c (_dl_show_auxv): Add bounds check.
2012-05-02 Andreas Jaeger <aj@suse.de>
* math/Makefile (CPPFLAGS-test-ildoubl.c): Add -frounding-math

2
NEWS
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@ -23,7 +23,7 @@ Version 2.16
13873, 13879, 13883, 13886, 13892, 13895, 13908, 13910, 13911, 13912,
13913, 13915, 13916, 13917, 13918, 13919, 13920, 13921, 13924, 13926,
13927, 13928, 13938, 13941, 13942, 13963, 13967, 13970, 13973, 14027,
14033, 14034, 14040
14033, 14034, 14040, 14055
* ISO C11 support:

6
elf/dl-sysdep.c
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@ -1,5 +1,5 @@
/* Operating system support for run-time dynamic linker. Generic Unix version.
Copyright (C) 1995-1998,2000-2008,2009,2010
Copyright (C) 1995-1998,2000-2010,2012
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@ -303,7 +303,9 @@ _dl_show_auxv (void)
};
unsigned int idx = (unsigned int) (av->a_type - 2);
if ((unsigned int) av->a_type < 2u || auxvars[idx].form == ignore)
if ((unsigned int) av->a_type < 2u
|| (idx < sizeof (auxvars) / sizeof (auxvars[0])
&& auxvars[idx].form == ignore))
continue;
assert (AT_NULL == 0);