From: Karel Zak <kzak@redhat.com>
Date: Mon, 15 Nov 2021 13:44:02 +0000 (+0100)
Subject: unshare: clear SIGCHLD inherited setting
X-Git-Tag: v2.38-rc1~165
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ec711d72d15626c15a0a4c2dba907452bcb652d0;p=thirdparty%2Futil-linux.git

unshare: clear SIGCHLD inherited setting

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/sys-utils/unshare.c b/sys-utils/unshare.c
index 8e61221da8..3f8287799f 100644
--- a/sys-utils/unshare.c
+++ b/sys-utils/unshare.c
@@ -542,6 +542,9 @@ int main(int argc, char *argv[])
 		errx(EXIT_FAILURE, _("options --monotonic and --boottime require "
 			"unsharing of a time namespace (-t)"));
 
+	/* clear any inherited settings */
+	signal(SIGCHLD, SIG_DFL);
+
 	if (npersists && (unshare_flags & CLONE_NEWNS))
 		bind_ns_files_from_child(&pid_bind, fds);