[PATCH 5.15 136/913] samples/landlock: Fix path_list memory leak

From: Greg Kroah-Hartman
Date: Tue Apr 05 2022 - 10:40:13 EST


From: Tom Rix <trix@xxxxxxxxxx>

commit 66b513b7c64a7290c1fbb88e657f7cece992e131 upstream.

Clang static analysis reports this error

sandboxer.c:134:8: warning: Potential leak of memory
pointed to by 'path_list'
ret = 0;
^
path_list is allocated in parse_path() but never freed.

Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210428213852.2874324-1-trix@xxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mickaël Salaün <mic@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
samples/landlock/sandboxer.c | 1 +
1 file changed, 1 insertion(+)

--- a/samples/landlock/sandboxer.c
+++ b/samples/landlock/sandboxer.c
@@ -134,6 +134,7 @@ static int populate_ruleset(
ret = 0;

out_free_name:
+ free(path_list);
free(env_path_name);
return ret;
}