From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 16 Sep 2020 20:11:48 +0000 (+0200)
Subject: nspawn: check return of setsid()
X-Git-Tag: v247-rc1~202^2~4
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=efe426624046089b74b70708e61f304f3cd414a7;p=thirdparty%2Fsystemd.git

nspawn: check return of setsid()

Let's verify that everything works the way we expect it to work, hence
check setsid() return code.
---

diff --git a/src/nspawn/nspawn-stub-pid1.c b/src/nspawn/nspawn-stub-pid1.c
index d86dd23185d..f785a3b2483 100644
--- a/src/nspawn/nspawn-stub-pid1.c
+++ b/src/nspawn/nspawn-stub-pid1.c
@@ -66,7 +66,10 @@ int stub_pid1(sd_id128_t uuid) {
         if (pid == 0) {
                 /* Return in the child */
                 assert_se(sigprocmask(SIG_SETMASK, &oldmask, NULL) >= 0);
-                setsid();
+
+                if (setsid() < 0)
+                        return log_error_errno(errno, "Failed to become session leader in payload process: %m");
+
                 return 0;
         }