[PATCH] blame: handle deref_tag() returning NULL
From: René Scharfe <hidden>
Date: 2020-10-11 16:04:00
Subsystem:
the rest · Maintainer:
Linus Torvalds
Signed-off-by: René Scharfe <redacted> --- blame.c | 6 +++--- builtin/blame.c | 2 ++ 2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/blame.c b/blame.c
index 686845b2b4..de7b5d411f 100644
--- a/blame.c
+++ b/blame.c@@ -2670,7 +2670,7 @@ static struct commit *find_single_final(struct rev_info *revs, if (obj->flags & UNINTERESTING) continue; obj = deref_tag(revs->repo, obj, NULL, 0); - if (obj->type != OBJ_COMMIT) + if (!obj || obj->type != OBJ_COMMIT) die("Non commit %s?", revs->pending.objects[i].name); if (found) die("More than one commit to dig from %s and %s?",
@@ -2701,7 +2701,7 @@ static struct commit *dwim_reverse_initial(struct rev_info *revs, /* Is that sole rev a committish? */ obj = revs->pending.objects[0].item; obj = deref_tag(revs->repo, obj, NULL, 0); - if (obj->type != OBJ_COMMIT) + if (!obj || obj->type != OBJ_COMMIT) return NULL; /* Do we have HEAD? */
@@ -2737,7 +2737,7 @@ static struct commit *find_single_initial(struct rev_info *revs, if (!(obj->flags & UNINTERESTING)) continue; obj = deref_tag(revs->repo, obj, NULL, 0); - if (obj->type != OBJ_COMMIT) + if (!obj || obj->type != OBJ_COMMIT) die("Non commit %s?", revs->pending.objects[i].name); if (found) die("More than one commit to dig up from, %s and %s?",
diff --git a/builtin/blame.c b/builtin/blame.c
index bb0f29300e..b5036ab327 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c@@ -820,6 +820,8 @@ static int peel_to_commit_oid(struct object_id *oid_ret, void *cbdata) if (kind != OBJ_TAG) return -1; obj = deref_tag(r, parse_object(r, &oid), NULL, 0); + if (!obj) + return -1; oidcpy(&oid, &obj->oid); } } --
2.28.0