X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=sha1_file.c;h=642c45ad75e166c37ddbfa77b0605f8597639508;hb=bdf0ef0824ecca427ec04ac047ffe4aaf73ace5a;hp=e3d011309a610ad2b81eeabe810e3844e946734b;hpb=1b25fd191d040ab59f8124694152c1577b13d968;p=git.git

diff --git a/sha1_file.c b/sha1_file.c
index e3d01130..642c45ad 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -874,17 +874,19 @@ void packed_object_info_detail(struct pack_entry *e,
 			       unsigned char *base_sha1)
 {
 	struct packed_git *p = e->p;
-	unsigned long offset, left;
+	unsigned long offset;
 	unsigned char *pack;
 	enum object_type kind;
 
 	offset = unpack_object_header(p, e->offset, &kind, size);
 	pack = p->pack_base + offset;
-	left = p->pack_size - offset;
 	if (kind != OBJ_DELTA)
 		*delta_chain_length = 0;
 	else {
 		unsigned int chain_length = 0;
+		if (p->pack_size <= offset + 20)
+			die("pack file %s records an incomplete delta base",
+			    p->pack_name);
 		memcpy(base_sha1, pack, 20);
 		do {
 			struct pack_entry base_ent;
@@ -1124,7 +1126,7 @@ int find_pack_entry_one(const unsigned char *sha1,
 		int mi = (lo + hi) / 2;
 		int cmp = memcmp(index + 24 * mi + 4, sha1, 20);
 		if (!cmp) {
-			e->offset = ntohl(*((int*)(index + 24 * mi)));
+			e->offset = ntohl(*((uint32_t *)(index + 24 * mi)));
 			memcpy(e->sha1, sha1, 20);
 			e->p = p;
 			return 1;