refs/files: fix NULL pointer deref when releasing ref store
The `free_ref_cache()` function is not `NULL` safe and will thus segfault when being passed such a pointer. This can easily happen when trying to release a partially initialized "files" ref store. Fix this. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Patrick Steinhardt committed
Jun 6, 2024 at 07:29 UTC
b3e098d6e77db87946c50c3517fbdeffe9168ca9
1 file changed
+2
refs/ref-cache.c
+2
index b6c53fc8ed..4ce519bbc8 100644
--- a/refs/ref-cache.c
+++ b/refs/ref-cache.c
@@ -71,6 +71,8 @@ static void free_ref_entry(struct ref_entry *entry)
void free_ref_cache(struct ref_cache *cache)
{
+ if (!cache)
+ return;
free_ref_entry(cache->root);
free(cache);
}