diff --git a/patch-delta.c b/patch-delta.c
index d218faa02bd12b0e6a0df298a6a0e5787e46d93f..56e0a5ede22c9396fc897bf1d3444dce92d8916f 100644 (file)
--- a/patch-delta.c
+++ b/patch-delta.c
if (cmd & 0x20) cp_size |= (*data++ << 8);
if (cmd & 0x40) cp_size |= (*data++ << 16);
if (cp_size == 0) cp_size = 0x10000;
if (cmd & 0x20) cp_size |= (*data++ << 8);
if (cmd & 0x40) cp_size |= (*data++ << 16);
if (cp_size == 0) cp_size = 0x10000;
- if (cp_off + cp_size < cp_size ||
+ if (unsigned_add_overflows(cp_off, cp_size) ||
cp_off + cp_size > src_size ||
cp_size > size)
break;
cp_off + cp_size > src_size ||
cp_size > size)
break;