console: set SFD_CLOEXEC on signal fd

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

console: set SFD_CLOEXEC on signal fd
f5d35f37 · Christian Brauner · a7cc8f78 · f5d35f37
Unverified Commit f5d35f37 authored Dec 31, 2017 by Christian Brauner
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console.c src/lxc/console.c +1 -1

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--- a/src/lxc/console.c
+++ b/src/lxc/console.c
@@ -166,7 +166,7 @@ struct lxc_tty_state *lxc_console_signal_init(int srcfd, int dstfd)
 		goto on_error;
 	}

-	ts->sigfd = signalfd(-1, &mask, 0);
+	ts->sigfd = signalfd(-1, &mask, SFD_CLOEXEC);
 	if (ts->sigfd < 0) {
 		WARN("Failed to create signal fd");
 		sigprocmask(SIG_SETMASK, &ts->oldmask, NULL);