From 95e7c385393488cb20c29697d8655f94ce83c413 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Fri, 14 Aug 2020 17:25:08 -0700 Subject: [PATCH] refspec: make sure stack refspec_item variables are zeroed A couple of functions that used struct refspec_item did not zero out the structure memory. This can result in unexpected behavior, especially if additional parameters are ever added to refspec_item in the future. Use memset to ensure that unset structure members are zero. It may make sense to convert most of these uses of struct refspec_item to use either struct initializers or refspec_item_init_or_die. However, other similar code uses memset. Converting all of these uses has been left as a future exercise. Signed-off-by: Jacob Keller Signed-off-by: Junio C Hamano --- builtin/remote.c | 1 + transport.c | 1 + 2 files changed, 2 insertions(+) diff --git a/builtin/remote.c b/builtin/remote.c index c8240e9fcd..542f56e387 100644 --- a/builtin/remote.c +++ b/builtin/remote.c @@ -478,6 +478,7 @@ static int get_head_names(const struct ref *remote_refs, struct ref_states *stat struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map; struct refspec_item refspec; + memset(&refspec, 0, sizeof(refspec)); refspec.force = 0; refspec.pattern = 1; refspec.src = refspec.dst = "refs/heads/*"; diff --git a/transport.c b/transport.c index 2d4fd851dc..419be0b6ea 100644 --- a/transport.c +++ b/transport.c @@ -443,6 +443,7 @@ void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int v if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE) return; + memset(&rs, 0, sizeof(rs)); rs.src = ref->name; rs.dst = NULL;