fix null pointer dereference introduced in last sigprocmask commit

96f21974 · Rich Felker · eee150f3 · 96f21974
隐藏空白更改
内联并排

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src/signal/sigprocmask.c src/signal/sigprocmask.c +1 -1

未找到文件。
--- a/src/signal/sigprocmask.c
+++ b/src/signal/sigprocmask.c
@@ -12,7 +12,7 @@ int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
 {
 	sigset_t tmp;
 	/* Disallow blocking thread control signals */
-	if (how != SIG_UNBLOCK) {
+	if (set && how != SIG_UNBLOCK) {
 		tmp = *set;
 		set = &tmp;
 		sigdelset(&tmp, SIGCANCEL);