Set SA_ONSTACK in zend_sigaction

dunglas · dunglas · commit 8b9f38fc51d5 · 2022-10-12T17:16:17.000+02:00
diff --git a/Zend/zend_signal.c b/Zend/zend_signal.c
@@ -248,7 +248,7 @@ ZEND_API void zend_sigaction(int signo, const struct sigaction *act, struct siga
 		if (SIGG(handlers)[signo-1].handler == (void *) SIG_IGN) {
 			sa.sa_sigaction = (void *) SIG_IGN;
 		} else {
-			sa.sa_flags     = SA_SIGINFO | (act->sa_flags & SA_FLAGS_MASK);
+			sa.sa_flags     = SA_ONSTACK | SA_SIGINFO | (act->sa_flags & SA_FLAGS_MASK);
 			sa.sa_sigaction = zend_signal_handler_defer;
 			sa.sa_mask      = global_sigmask;
 		}

Original file line number	Diff line number	Diff line change
`@@ -248,7 +248,7 @@ ZEND_API void zend_sigaction(int signo, const struct sigaction *act, struct siga`
`248`	`248`	`if (SIGG(handlers)[signo-1].handler == (void *) SIG_IGN) {`
`249`	`249`	`sa.sa_sigaction = (void *) SIG_IGN;`
`250`	`250`	`} else {`
`251`		`- sa.sa_flags = SA_SIGINFO \| (act->sa_flags & SA_FLAGS_MASK);`
	`251`	`+ sa.sa_flags = SA_ONSTACK \| SA_SIGINFO \| (act->sa_flags & SA_FLAGS_MASK);`
`252`	`252`	`sa.sa_sigaction = zend_signal_handler_defer;`
`253`	`253`	`sa.sa_mask = global_sigmask;`
`254`	`254`	`}`