From 8aa4e2d6856d1eed699b30ccca6163f8e501e183 Mon Sep 17 00:00:00 2001 From: davidxu Date: Mon, 7 Jul 2003 04:28:23 +0000 Subject: Avoid accessing user provided parameters in critical region. Reviewed by: deischen --- lib/libpthread/thread/thr_sigpending.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'lib/libpthread/thread/thr_sigpending.c') diff --git a/lib/libpthread/thread/thr_sigpending.c b/lib/libpthread/thread/thr_sigpending.c index 1b9b502..1edf01f 100644 --- a/lib/libpthread/thread/thr_sigpending.c +++ b/lib/libpthread/thread/thr_sigpending.c @@ -46,6 +46,7 @@ _sigpending(sigset_t *set) { struct pthread *curthread = _get_curthread(); kse_critical_t crit; + sigset_t sigset; int ret = 0; /* Check for a null signal set pointer: */ @@ -59,12 +60,13 @@ _sigpending(sigset_t *set) crit = _kse_critical_enter(); KSE_SCHED_LOCK(curthread->kse, curthread->kseg); - *set = curthread->sigpend; + sigset = curthread->sigpend; KSE_SCHED_UNLOCK(curthread->kse, curthread->kseg); KSE_LOCK_ACQUIRE(curthread->kse, &_thread_signal_lock); - SIGSETOR(*set, _thr_proc_sigpending); + SIGSETOR(sigset, _thr_proc_sigpending); KSE_LOCK_RELEASE(curthread->kse, &_thread_signal_lock); _kse_critical_leave(crit); + *set = sigset; } /* Return the completion status: */ return (ret); -- cgit v1.1