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authorLibravatar Johannes Schindelin <johannes.schindelin@gmx.de>2019-05-21 10:50:21 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2019-05-28 10:51:01 -0700
commit7877ac3d7b8ae84981c9c2fa86a4f3701ade4510 (patch)
treecd055af4468045db9e353ebc0ff8adf067ac4f67 /builtin/bisect--helper.c
parentmingw: allow building with an MSYS2 runtime v3.x (diff)
downloadtgif-7877ac3d7b8ae84981c9c2fa86a4f3701ade4510.tar.xz
bisect--helper: verify HEAD could be parsed before continuing
In 06f5608c14e6 (bisect--helper: `bisect_start` shell function partially in C, 2019-01-02), we introduced a call to `get_oid()` and did not check whether it succeeded before using its output. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/bisect--helper.c')
-rw-r--r--builtin/bisect--helper.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index e7325fe37f..1fbe156e67 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -570,7 +570,10 @@ static int bisect_start(struct bisect_terms *terms, int no_checkout,
write_file(git_path_bisect_start(), "%s\n", start_head.buf);
if (no_checkout) {
- get_oid(start_head.buf, &oid);
+ if (get_oid(start_head.buf, &oid) < 0) {
+ retval = error(_("invalid ref: '%s'"), start_head.buf);
+ goto finish;
+ }
if (update_ref(NULL, "BISECT_HEAD", &oid, NULL, 0,
UPDATE_REFS_MSG_ON_ERR)) {
retval = -1;