Timeout in pdf_codec_tiff_fuzzer |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=5982239930974208 Fuzzer: libFuzzer_pdf_codec_tiff_fuzzer Job Type: libfuzzer_chrome_asan Platform Id: linux Crash Type: Timeout (exceeds 25 secs) Crash Address: Crash State: pdf_codec_tiff_fuzzer Sanitizer: address (ASAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=422880:422991 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5982239930974208 Issue filed automatically. See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
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Apr 19 2018
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Apr 19 2018
XFA, I will take a look
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Apr 27 2018
Looking into this a bit, it is looks like the input includes some pathelogically bad JPEG data that is causing libTIFF to do a lot of scanline operations. Though I cannot reproduce the timeouts being seen. I am currently in the process of updating libtiff to 4.0.9. Will take another look at this once that lands, but I suspect this is a WontFix, since it is just hard inputs.
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Apr 27 2018
With 4.0.9, I cannot reproduce the timeout issue locally, though under profiling I can see that there is a lot of scanline operations occurring in libtiff. As mentioned before I think this is just a pathologically bad input for libtiff and there isn't much to do, since it does complete
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May 4 2018
ClusterFuzz testcase 5982239930974208 is still reproducing on tip-of-tree build (trunk). If this testcase was not reproducible locally or unworkable, ignore this notification and we will file another bug soon with hopefully a better and workable testcase. Otherwise, if this is not intended to be fixed (e.g. this is an intentional crash), please add ClusterFuzz-Ignore label to prevent future bug filing with similar crash stacktrace.
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May 4 2018
I already marked this as WontFix & ClusterFuzz-Ignore. It is just a really hard to process JPEG for libtiff.
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Nov 1
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Dec 1
ClusterFuzz testcase 5982239930974208 appears to be flaky, updating reproducibility label. |
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Comment 1 by ClusterFuzz
, Apr 19 2018Labels: Test-Predator-Auto-Components