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Published 20 hours ago • verified publisher icon curl

curl_fuzzer produces unstable outputs

Open shao-hua-li opened this issue 3 years ago • 0 comments

Hi,

I compiled curl-fuzzer using ./mainline.sh. I found that for some inputs, the output ofcurl_fuzzer would change per run.

  • Compiler: clang13
  • Platform: Ubuntu 20.04.4 LTS, x86_64
  • INPUT: unstable_output.tar.gz (decompress it first)
  • Reproduce: run FUZZ_VERBOSE=1 ./curl_fuzzer unstable_output a few times, you should be able to observe that the field FUZZ[0]: Received 284 bytes would sometimes be FUZZ[0]: Received 283 bytes.

shao-hua-li avatar Jan 04 '22 22:01 shao-hua-li