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authorLibravatar Clemens Buchacher <drizzd@aon.at>2009-05-27 22:13:43 +0200
committerLibravatar Junio C Hamano <gitster@pobox.com>2009-05-27 23:16:16 -0700
commit6a01554e6350123c78de805d820e90f1c56e5fdc (patch)
tree512631158643b30cda638d18e1ca0ee70a7d3a8e
parentPrepare for 1.6.3.2 (diff)
downloadtgif-6a01554e6350123c78de805d820e90f1c56e5fdc.tar.xz
fix segfault showing an empty remote
In case of an empty list, the search for its tail caused a NULL-pointer dereference. Signed-off-by: Clemens Buchacher <drizzd@aon.at> Reported-by: Erik Faye-Lund <kusmabite@googlemail.com> Acked-by: Jay Soffian <jaysoffian@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin-remote.c8
-rwxr-xr-xt/t5505-remote.sh10
2 files changed, 14 insertions, 4 deletions
diff --git a/builtin-remote.c b/builtin-remote.c
index 71abf68404..fda9a54a0c 100644
--- a/builtin-remote.c
+++ b/builtin-remote.c
@@ -299,11 +299,11 @@ static int get_push_ref_states(const struct ref *remote_refs,
return 0;
local_refs = get_local_heads();
- ref = push_map = copy_ref_list(remote_refs);
- while (ref->next)
- ref = ref->next;
- push_tail = &ref->next;
+ push_map = copy_ref_list(remote_refs);
+ push_tail = &push_map;
+ while (*push_tail)
+ push_tail = &((*push_tail)->next);
match_refs(local_refs, push_map, &push_tail, remote->push_refspec_nr,
remote->push_refspec, MATCH_REFS_NONE);
diff --git a/t/t5505-remote.sh b/t/t5505-remote.sh
index 5ec668d6d8..e70246b3fb 100755
--- a/t/t5505-remote.sh
+++ b/t/t5505-remote.sh
@@ -494,5 +494,15 @@ test_expect_success 'remote prune to cause a dangling symref' '
grep "dangling symref" err
'
+test_expect_success 'show empty remote' '
+
+ test_create_repo empty &&
+ git clone empty empty-clone &&
+ (
+ cd empty-clone &&
+ git remote show origin
+ )
+'
+
test_done