Null-dereference READ in SkOpAngle::segment |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=5636167710801920 Fuzzer: libFuzzer_skia_pathop_fuzzer Job Type: libfuzzer_chrome_ubsan Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x0000000000d8 Crash State: SkOpAngle::segment SkOpSegment::findNextXor bridgeXor Sanitizer: undefined (UBSAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=567993:568015 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5636167710801920 Issue filed automatically. See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
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Jun 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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Jun 18 2018
Automatically adding ccs based on suspected regression changelists: fast path for pathops by caryclark@skia.org - https://skia.googlesource.com/skia/+/1bb47df4fc8edf62b0463d088214ed1ffb909ca9 If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
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Jun 19 2018
The following revision refers to this bug: https://skia.googlesource.com/skia/+/560714336135d9bf851146ead65a6c68cf4220ed commit 560714336135d9bf851146ead65a6c68cf4220ed Author: Cary Clark <caryclark@skia.org> Date: Tue Jun 19 12:58:00 2018 fix fuzzer bugs in pathops one from clusterfuzz, one from Skia fuzzer R=kjlubick@google.com Bug:853938 Change-Id: If456bf45e4d75edecf4e4e8222ddcdaa301455f4 Reviewed-on: https://skia-review.googlesource.com/135701 Commit-Queue: Cary Clark <caryclark@skia.org> Commit-Queue: Kevin Lubick <kjlubick@google.com> Auto-Submit: Cary Clark <caryclark@skia.org> Reviewed-by: Kevin Lubick <kjlubick@google.com> [modify] https://crrev.com/560714336135d9bf851146ead65a6c68cf4220ed/src/pathops/SkOpSegment.cpp [modify] https://crrev.com/560714336135d9bf851146ead65a6c68cf4220ed/src/pathops/SkOpCoincidence.cpp
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Jun 19 2018
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/9c4cafaa3576e437310e4f449d06bc111029cda9 commit 9c4cafaa3576e437310e4f449d06bc111029cda9 Author: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com> Date: Tue Jun 19 16:40:54 2018 Roll src/third_party/skia f2030783094e..ba61029c5b49 (5 commits) https://skia.googlesource.com/skia.git/+log/f2030783094e..ba61029c5b49 git log f2030783094e..ba61029c5b49 --date=short --no-merges --format='%ad %ae %s' 2018-06-19 caryclark@skia.org fix op fuzz timeout 2018-06-19 angle-skia-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com Roll third_party/externals/angle2 2dabb4a367c3..7df52383cfdf (1 commits) 2018-06-19 fmalita@chromium.org Use SkJSONWriter for viewer UI serialization 2018-06-19 caryclark@skia.org fix bookmaker files 2018-06-19 caryclark@skia.org fix fuzzer bugs in pathops Created with: gclient setdep -r src/third_party/skia@ba61029c5b49 The AutoRoll server is located here: https://autoroll.skia.org Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+/master/autoroll/README.md If the roll is causing failures, please contact the current sheriff, who should be CC'd on the roll, and stop the roller if necessary. CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel BUG= chromium:831647 , chromium:853938 TBR=kjlubick@chromium.org Change-Id: I553b529db946ce58832e209af4315efcca790386 Reviewed-on: https://chromium-review.googlesource.com/1106100 Reviewed-by: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com> Commit-Queue: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com> Cr-Commit-Position: refs/heads/master@{#568490} [modify] https://crrev.com/9c4cafaa3576e437310e4f449d06bc111029cda9/DEPS
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Jun 20 2018
ClusterFuzz has detected this issue as fixed in range 568488:568508. Detailed report: https://clusterfuzz.com/testcase?key=5636167710801920 Fuzzer: libFuzzer_skia_pathop_fuzzer Job Type: libfuzzer_chrome_ubsan Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x0000000000d8 Crash State: SkOpAngle::segment SkOpSegment::findNextXor bridgeXor Sanitizer: undefined (UBSAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=567993:568015 Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=568488:568508 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5636167710801920 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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Jun 20 2018
ClusterFuzz testcase 5636167710801920 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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Comment 1 by ClusterFuzz
, Jun 18 2018Labels: Test-Predator-Auto-Components