diff options
| -rw-r--r-- | builtin-pack-objects.c | 2 | ||||
| -rw-r--r-- | pack-revindex.c | 3 | ||||
| -rw-r--r-- | sha1_file.c | 18 |
3 files changed, 16 insertions, 7 deletions
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c index c05fb944b..04a5a55ef 100644 --- a/builtin-pack-objects.c +++ b/builtin-pack-objects.c @@ -1053,6 +1053,8 @@ static void check_object(struct object_entry *entry) if (reuse_delta && !entry->preferred_base) { struct revindex_entry *revidx; revidx = find_pack_revindex(p, ofs); + if (!revidx) + goto give_up; base_ref = nth_packed_object_sha1(p, revidx->nr); } entry->in_pack_header_size = used + used_0; diff --git a/pack-revindex.c b/pack-revindex.c index 6096b6224..1de53c893 100644 --- a/pack-revindex.c +++ b/pack-revindex.c @@ -140,7 +140,8 @@ struct revindex_entry *find_pack_revindex(struct packed_git *p, off_t ofs) else lo = mi + 1; } while (lo < hi); - die("internal error: pack revindex corrupt"); + error("bad offset for revindex"); + return NULL; } void discard_revindex(void) diff --git a/sha1_file.c b/sha1_file.c index 384a43044..9ce1df0cf 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -1388,9 +1388,12 @@ static int packed_delta_info(struct packed_git *p, return OBJ_BAD; type = packed_object_info(p, base_offset, NULL); if (type <= OBJ_NONE) { - struct revindex_entry *revidx = find_pack_revindex(p, base_offset); - const unsigned char *base_sha1 = - nth_packed_object_sha1(p, revidx->nr); + struct revindex_entry *revidx; + const unsigned char *base_sha1; + revidx = find_pack_revindex(p, base_offset); + if (!revidx) + return OBJ_BAD; + base_sha1 = nth_packed_object_sha1(p, revidx->nr); mark_bad_packed_object(p, base_sha1); type = sha1_object_info(base_sha1, NULL); if (type <= OBJ_NONE) @@ -1682,9 +1685,12 @@ static void *unpack_delta_entry(struct packed_git *p, * This is costly but should happen only in the presence * of a corrupted pack, and is better than failing outright. */ - struct revindex_entry *revidx = find_pack_revindex(p, base_offset); - const unsigned char *base_sha1 = - nth_packed_object_sha1(p, revidx->nr); + struct revindex_entry *revidx; + const unsigned char *base_sha1; + revidx = find_pack_revindex(p, base_offset); + if (!revidx) + return NULL; + base_sha1 = nth_packed_object_sha1(p, revidx->nr); error("failed to read delta base object %s" " at offset %"PRIuMAX" from %s", sha1_to_hex(base_sha1), (uintmax_t)base_offset, |