Author: davidxu
Date: Wed Sep 29 06:06:58 2010
New Revision: 213257
URL: http://svn.freebsd.org/changeset/base/213257
Log:
Check invalid mutex in _mutex_cv_unlock.
Modified:
head/lib/libthr/thread/thr_mutex.c
Modified: head/lib/libthr/thread/thr_mutex.c
==============================================================================
--- head/lib/libthr/thread/thr_mutex.c Wed Sep 29 02:36:58 2010
(r213256)
+++ head/lib/libthr/thread/thr_mutex.c Wed Sep 29 06:06:58 2010
(r213257)
@@ -636,6 +636,12 @@ _mutex_cv_unlock(pthread_mutex_t *mutex,
struct pthread_mutex *m;
m = *mutex;
+ if (__predict_false(m <= THR_MUTEX_DESTROYED)) {
+ if (m == THR_MUTEX_DESTROYED)
+ return (EINVAL);
+ return (EPERM);
+ }
+
/*
* Check if the running thread is not the owner of the mutex.
*/
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