From e29413a2205099b2bffe584210d7a2b59f531f90 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 7 Dec 2022 14:49:48 +0100
Subject: ucm: execute_sysw - fix possible use-after-free

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
 src/ucm/main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/ucm/main.c b/src/ucm/main.c
index 4f36648c..2ff4d3f3 100644
--- a/src/ucm/main.c
+++ b/src/ucm/main.c
@@ -572,16 +572,17 @@ static int execute_sysw(const char *sysw)
 	wlen = write(fd, value, len);
 	myerrno = errno;
 	close(fd);
-	free(s);
 
 	if (ignore_error)
-		return 0;
+		goto __end;
 
 	if (wlen != (ssize_t)len) {
 		uc_error("unable to write '%s' to '%s': %s", value, path, strerror(myerrno));
 		return -EINVAL;
 	}
 
+__end:
+	free(s);
 	return 0;
 }
 
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