From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 14 Dec 2022 15:38:19 -0600
Subject: [PATCH] libmultipath: don't leak memory on invalid strings
If set_path() or set_str_noslash() are called with a bad value, they
ignore it and continue to use the old value. But they weren't freeing
the bad value, causing a memory leak.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
libmultipath/dict.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index 46b9f225..861d1d17 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -156,6 +156,7 @@ set_path(vector strvec, void *ptr, const char *file, int line_nr)
if ((*str_ptr)[0] != '/'){
condlog(1, "%s line %d, %s is not an absolute path. Ignoring",
file, line_nr, *str_ptr);
+ free(*str_ptr);
*str_ptr = old_str;
} else
free(old_str);
@@ -176,6 +177,7 @@ set_str_noslash(vector strvec, void *ptr, const char *file, int line_nr)
if (strchr(*str_ptr, '/')) {
condlog(1, "%s line %d, %s cannot contain a slash. Ignoring",
file, line_nr, *str_ptr);
+ free(*str_ptr);
*str_ptr = old_str;
} else
free(old_str);