[fuzz] Avoid empty memcpy and ubsan complain by length checking before memcpy

pull/2228/head
Ebrahim Byagowi 5 years ago
parent 6543d166fd
commit 558f922788
  1. 3
      test/fuzzing/hb-shape-fuzzer.cc

@ -41,7 +41,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
unsigned int len = sizeof (text32);
if (size < len)
len = size;
memcpy(text32, data + size - len, len);
if (len)
memcpy(text32, data + size - len, len);
hb_buffer_t *buffer = hb_buffer_create ();
hb_buffer_add_utf32 (buffer, text32, sizeof (text32) / sizeof (text32[0]), 0, -1);

Loading…
Cancel
Save