From 5ff4b920ebeadfa640f1b7d5929f58bb180a0519 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Thu, 9 Apr 2020 17:03:45 -0700 Subject: [PATCH] sha1-name: do not assume that the ref store is initialized MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit c931ba4e (sha1-name.c: remove the_repo from handle_one_ref(), 2019-04-16) replaced the use of for_each_ref() helper, which works with the main ref store of the default repository instance, with refs_for_each_ref(), which can work on any ref store instance, by assuming that the repository instance the function is given has its ref store already initialized. But it is possible that nobody has initialized it, in which case, the code ends up dereferencing a NULL pointer. Reported-by: Érico Rolim Signed-off-by: Junio C Hamano --- sha1-name.c | 2 +- t/t4208-log-magic-pathspec.sh | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/sha1-name.c b/sha1-name.c index d9050776dd..3aba62938f 100644 --- a/sha1-name.c +++ b/sha1-name.c @@ -1771,7 +1771,7 @@ static enum get_oid_result get_oid_with_context_1(struct repository *repo, cb.repo = repo; cb.list = &list; - refs_for_each_ref(repo->refs, handle_one_ref, &cb); + refs_for_each_ref(get_main_ref_store(repo), handle_one_ref, &cb); refs_head_ref(repo->refs, handle_one_ref, &cb); commit_list_sort_by_date(&list); return get_oid_oneline(repo, name + 2, oid, list); diff --git a/t/t4208-log-magic-pathspec.sh b/t/t4208-log-magic-pathspec.sh index 4c8f3b8e1b..6cdbe4747a 100755 --- a/t/t4208-log-magic-pathspec.sh +++ b/t/t4208-log-magic-pathspec.sh @@ -55,6 +55,10 @@ test_expect_success '"git log -- :/a" should not be ambiguous' ' git log -- :/a ' +test_expect_success '"git log :/any/path/" should not segfault' ' + test_must_fail git log :/any/path/ +' + # This differs from the ":/a" check above in that :/in looks like a pathspec, # but doesn't match an actual file. test_expect_success '"git log :/in" should not be ambiguous' ' -- 2.32.0.93.g670b81a890