Pointer-overflow in SkPixmap::addr32 |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=6417838370455552 Fuzzer: libFuzzer_skia_image_filter_proto_fuzzer Job Type: libfuzzer_chrome_ubsan Platform Id: linux Crash Type: Pointer-overflow Crash Address: Crash State: SkPixmap::addr32 void SkMatrixConvolutionImageFilter::filterPixels<RepeatPixelFetcher, true> SkMatrixConvolutionImageFilter::onFilterImage Sanitizer: undefined (UBSAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=559654:559659 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6417838370455552 Issue filed automatically. See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
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May 18 2018
Automatically adding ccs based on OWNERS file / target commit history. If this is incorrect, please add ClusterFuzz-Wrong label.
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May 18 2018
Automatically adding ccs based on suspected regression changelists: Fix srcBounds computation in SkMatrixConvolutionImageFilter by robertphillips@google.com - https://skia.googlesource.com/skia/+/120784394c160d009bc3aa88dd217c13c105a6ca If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
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May 19 2018
ClusterFuzz has detected this issue as fixed in range 559906:559949. Detailed report: https://clusterfuzz.com/testcase?key=6417838370455552 Fuzzer: libFuzzer_skia_image_filter_proto_fuzzer Job Type: libfuzzer_chrome_ubsan Platform Id: linux Crash Type: Pointer-overflow Crash Address: Crash State: SkPixmap::addr32 void SkMatrixConvolutionImageFilter::filterPixels<RepeatPixelFetcher, true> SkMatrixConvolutionImageFilter::onFilterImage Sanitizer: undefined (UBSAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=559654:559659 Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=559906:559949 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6417838370455552 See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information. If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
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May 19 2018
ClusterFuzz testcase 6417838370455552 is verified as fixed, so closing issue as verified. If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
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May 21 2018
Most likely this was fixed by: https://skia-review.googlesource.com/c/skia/+/129165 (Fix bugs related to SkMatrixConvolutionImageFilter in repeat mode) and https://skia-review.googlesource.com/c/skia/+/129184 (Fix fuzzer bug i.e., compute the correct repeated dst domain) |
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Comment 1 by ClusterFuzz
, May 18 2018Labels: Test-Predator-Auto-Components