From 40a80078d24230f668a22df63d866643825486ec Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 26 Sep 2017 17:52:25 +0200
Subject: [PATCH] execute: let's close glibc syslog channels too

Just in case something opened them, let's make sure glibc invalidates
them too.

Thankfully so far no library opened log channels behind our back, at
least as far as I know, hence this is actually a NOP, but let's better
be safe than sorry.
---
 src/core/execute.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/core/execute.c b/src/core/execute.c
index 47d8aa3910..cd4b9f8eb2 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -2464,6 +2464,9 @@ static int exec_child(
         log_forget_fds();
         log_set_open_when_needed(true);
 
+        /* In case anything used libc syslog(), close this here, too */
+        closelog();
+
         n_fds = n_storage_fds + n_socket_fds;
         r = close_remaining_fds(params, runtime, dcreds, user_lookup_fd, socket_fd, fds, n_fds);
         if (r < 0) {