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Message-ID: <20241217131514.3366368-1-lihua.zhao.cn@windriver.com>
Date: Tue, 17 Dec 2024 21:15:14 +0800
From: <lihua.zhao.cn@...driver.com>
To: <musl@...ts.openwall.com>
CC: <lihua.zhao.cn@...driver.com>
Subject: [PATCH] signal: check sigpause() input parameter
From: Lihua Zhao <lihua.zhao.cn@...driver.com>
---
src/signal/sigpause.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/signal/sigpause.c b/src/signal/sigpause.c
index 363d2fec..a3644792 100644
--- a/src/signal/sigpause.c
+++ b/src/signal/sigpause.c
@@ -1,8 +1,13 @@
#include <signal.h>
+#include <errno.h>
int sigpause(int sig)
{
sigset_t mask;
+ if (sig < 1 || sig >= _NSIG - 1) {
+ errno = EINVAL;
+ return -1;
+ }
sigprocmask(0, 0, &mask);
sigdelset(&mask, sig);
return sigsuspend(&mask);
--
2.43.0
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