[Bug sanitizer/80166] SANITIZER_INTERCEPT_GETGROUPS modifies list when size is 0 Out-of-bounds write

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80166

--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Thu Apr  6 13:42:24 2017
New Revision: 246730

URL: https://gcc.gnu.org/viewcvs?rev=246730&root=gcc&view=rev
Log:
Cherry-pick upstream r299036 from libsanitizer (PR sanitizer/80166).

2017-04-06  Martin Liska  <mliska@suse.cz>

        PR sanitizer/80166
        * sanitizer_common/sanitizer_common_interceptors.inc (INTERCEPTOR):
        Cherry-pick upstream r299036.
2017-04-06  Martin Liska  <mliska@suse.cz>

        PR sanitizer/80166
        * gcc.dg/asan/pr80166.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/asan/pr80166.c
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/libsanitizer/ChangeLog
    trunk/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc