Merge branch 'jc/fail-stash-to-store-non-stash'

Feeding "git stash store" with a random commit that was not created
by "git stash create" now errors out.

* jc/fail-stash-to-store-non-stash:
  stash: be careful what we store

2 files changed, 10 insertions, 0 deletions

diff --git a/builtin/stash.c b/builtin/stash.c
index 1ad496985a..4a6771c9f4 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -989,6 +989,12 @@ usage:
 static int do_store_stash(const struct object_id *w_commit, const char *stash_msg,
 			  int quiet)
 {
+	struct stash_info info;
+	char revision[GIT_MAX_HEXSZ];
+
+	oid_to_hex_r(revision, w_commit);
+	assert_stash_like(&info, revision);
+
 	if (!stash_msg)
 		stash_msg = "Created via \"git stash store\".";
 
diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh
index 0b3dfeaea2..30b64260a8 100755
--- a/t/t3903-stash.sh
+++ b/t/t3903-stash.sh
@@ -931,6 +931,10 @@ test_expect_success 'store called with invalid commit' '
 	test_must_fail git stash store foo
 '
 
+test_expect_success 'store called with non-stash commit' '
+	test_must_fail git stash store HEAD
+'
+
 test_expect_success 'store updates stash ref and reflog' '
 	git stash clear &&
 	git reset --hard &&