diff options
Diffstat (limited to 'debug/fortify_fail.c')
| -rw-r--r-- | debug/fortify_fail.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/debug/fortify_fail.c b/debug/fortify_fail.c index c90d384..a0777ae 100644 --- a/debug/fortify_fail.c +++ b/debug/fortify_fail.c @@ -24,13 +24,17 @@ extern char **__libc_argv attribute_hidden; void __attribute__ ((noreturn)) internal_function -__fortify_fail_abort (_Bool do_backtrace, const char *msg) +__fortify_fail_abort (_Bool need_backtrace, const char *msg) { - /* The loop is added only to keep gcc happy. */ + /* The loop is added only to keep gcc happy. Don't pass down + __libc_argv[0] if we aren't doing backtrace since __libc_argv[0] + may point to the corrupted stack. */ while (1) - __libc_message (do_backtrace ? (do_abort | do_backtrace) : do_abort, + __libc_message (need_backtrace ? (do_abort | do_backtrace) : do_abort, "*** %s ***: %s terminated\n", - msg, __libc_argv[0] ?: "<unknown>"); + msg, + (need_backtrace && __libc_argv[0] != NULL + ? __libc_argv[0] : "<unknown>")); } void |