From f1ee066840eea748ad4074ac2bc859bb897953b9 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Fri, 2 Sep 2022 18:35:03 +0200 Subject: [PATCH] log: don't attempt to duplicate closed fd MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit if the console fd is not open we shouldn#t try to move it out of the 0…2 range. Fixes: #24535 Alternative-for: #24537 --- src/basic/log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/basic/log.c b/src/basic/log.c index cac17a76f4d..c5e16d669b0 100644 --- a/src/basic/log.c +++ b/src/basic/log.c @@ -1460,7 +1460,7 @@ int log_dup_console(void) { /* Duplicate the fd we use for fd logging if it's < 3 and use the copy from now on. This call is useful * whenever we want to continue logging through the original fd, but want to rearrange stderr. */ - if (console_fd >= 3) + if (console_fd < 0 || console_fd >= 3) return 0; copy = fcntl(console_fd, F_DUPFD_CLOEXEC, 3); -- 2.47.3