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| author | Paul Pluzhnikov <ppluzhnikov@google.com> | 2012-05-02 14:35:30 -0700 |
|---|---|---|
| committer | Paul Pluzhnikov <ppluzhnikov@google.com> | 2012-05-02 14:35:30 -0700 |
| commit | 171a70b4c0173533f6f803ec6bc8c2ed910cc468 (patch) | |
| tree | fa625901840c68756b5e4f86e6373c28b6b9d43e /elf/dl-sysdep.c | |
| parent | ff8a695b6d740e45b9e4b7ca454cdbca4f04ed7a (diff) | |
| download | glibc-171a70b4c0173533f6f803ec6bc8c2ed910cc468.tar.gz glibc-171a70b4c0173533f6f803ec6bc8c2ed910cc468.tar.xz glibc-171a70b4c0173533f6f803ec6bc8c2ed910cc468.zip | |
For PR 14055, add bounds check to _dl_show_auxv().
Diffstat (limited to 'elf/dl-sysdep.c')
| -rw-r--r-- | elf/dl-sysdep.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c index 1cb4460a02..ea505a646f 100644 --- a/elf/dl-sysdep.c +++ b/elf/dl-sysdep.c @@ -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); |