diff options
Diffstat (limited to 'debug/getgroups_chk.c')
| -rw-r--r-- | debug/getgroups_chk.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/debug/getgroups_chk.c b/debug/getgroups_chk.c index c877ddb9ca..8c3d99da7e 100644 --- a/debug/getgroups_chk.c +++ b/debug/getgroups_chk.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. +/* Copyright (C) 2005, 2008 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -23,6 +23,12 @@ int __getgroups_chk (int size, __gid_t list[], size_t listlen) { + if (__builtin_expect (size < 0, 0)) + { + __set_errno (EINVAL); + return -1; + } + if (__builtin_expect (size * sizeof (__gid_t) > listlen, 0)) __chk_fail (); |