conntrackd: fix memory leak in cache_update_force()

This patch fixes a memory leak in cache_update_force(). The problem
occurs if the object does not exists in the cache and we fail to
add it.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/cache.c b/src/cache.c
index e4a024b..1e544a2 100644
--- a/src/cache.c
+++ b/src/cache.c
@@ -340,8 +340,10 @@ cache_update_force(struct cache *c, struct nf_conntrack *ct)
 	if (obj == NULL)
 		return NULL;
 
-	if (cache_add(c, obj, id) == -1)
+	if (cache_add(c, obj, id) == -1) {
+		cache_object_free(obj);
 		return NULL;
+	}
 
 	return obj;
 }