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authorPaul Pluzhnikov <ppluzhnikov@google.com>2012-05-02 14:35:30 -0700
committerPaul Pluzhnikov <ppluzhnikov@google.com>2012-05-02 14:35:30 -0700
commit171a70b4c0173533f6f803ec6bc8c2ed910cc468 (patch)
treefa625901840c68756b5e4f86e6373c28b6b9d43e /elf/dl-sysdep.c
parentff8a695b6d740e45b9e4b7ca454cdbca4f04ed7a (diff)
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For PR 14055, add bounds check to _dl_show_auxv().
Diffstat (limited to 'elf/dl-sysdep.c')
-rw-r--r--elf/dl-sysdep.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c
index 1cb4460..ea505a6 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);