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Issue 625618 link

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Issue metadata

Status: Verified
Owner:
Closed: Jul 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Crash in AddIntersectTs

Project Member Reported by ClusterFuzz, Jul 4 2016

Issue description

Cc: -ssamanoori@google.com ssamanoori@chromium.org
Components: Tools>Test>FindIt>NoResult
Labels: findit-wrong Te-Logged
Owner: mbarbe...@chromium.org
Status: Assigned (was: Available)
Through code search on file 'skia_pathop_fuzzer.cc' suspecting the below
https://chromium.googlesource.com/chromium/src/+/d39a8d816bab5d9c7b572c1ef9e6a53224e0b0c9%5E%21/testing/libfuzzer/fuzzers/skia_pathop_fuzzer.cc

mbarbella@ Could you please look into this issue if its related to your change,else please re assign it to an appropriate dev person.

Thanks,
Project Member

Comment 2 by ClusterFuzz, Jul 5 2016

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5696958811602944

Fuzzer: afl_skia_pathop_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000070
Crash State:
  SkTSect<SkDConic, SkDQuad>::extractCoincident
  SkTSect<SkDConic, SkDQuad>::BinarySearch
  SkIntersections::intersect
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=402185:402404

Minimized Testcase (0.11 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95PArALluJus19mODVb0G6wqI4IiHCCbTKg3sBSbEu6TKWLLqj_gky18jXTLdwdA4b43s4-TBtx67cry9zAJ5OgDJViCqfiw3-Sv_1s01qAk2BXRuAxqxHMdJJ9_mkkDzj-CSgyuU-XFmgzMlsn_Jfn5g5ukQ?testcase_id=5696958811602944

Filer: ssamanoori

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
Project Member

Comment 3 by ClusterFuzz, Jul 6 2016

ClusterFuzz has detected this testcase as flaky and is unable to reproduce it in the original crash revision. Skipping fixed testing check and marking it as potentially fixed.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5696958811602944

Fuzzer: afl_skia_pathop_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000070
Crash State:
  SkTSect<SkDConic, SkDQuad>::extractCoincident
  SkTSect<SkDConic, SkDQuad>::BinarySearch
  SkIntersections::intersect
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=402185:402404

Minimized Testcase (0.11 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95PArALluJus19mODVb0G6wqI4IiHCCbTKg3sBSbEu6TKWLLqj_gky18jXTLdwdA4b43s4-TBtx67cry9zAJ5OgDJViCqfiw3-Sv_1s01qAk2BXRuAxqxHMdJJ9_mkkDzj-CSgyuU-XFmgzMlsn_Jfn5g5ukQ?testcase_id=5696958811602944

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 4 by ClusterFuzz, Jul 26 2016

ClusterFuzz has detected this issue as fixed in range 406032:406205.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5696958811602944

Fuzzer: afl_skia_pathop_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000070
Crash State:
  SkTSect<SkDConic, SkDQuad>::extractCoincident
  SkTSect<SkDConic, SkDQuad>::BinarySearch
  SkIntersections::intersect
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=402185:402404
Fixed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=406032:406205

Minimized Testcase (0.11 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95PArALluJus19mODVb0G6wqI4IiHCCbTKg3sBSbEu6TKWLLqj_gky18jXTLdwdA4b43s4-TBtx67cry9zAJ5OgDJViCqfiw3-Sv_1s01qAk2BXRuAxqxHMdJJ9_mkkDzj-CSgyuU-XFmgzMlsn_Jfn5g5ukQ?testcase_id=5696958811602944

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 5 by ClusterFuzz, Jul 29 2016

ClusterFuzz has detected this issue as fixed in range 406032:406205.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5686533885788160

Fuzzer: afl_skia_pathop_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000018
Crash State:
  AddIntersectTs
  OpDebug
  SkOpBuilder::resolve
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=402185:402404
Fixed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=406032:406205

Minimized Testcase (0.09 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97_Y-e7uvGqjJZp0t2fE8tFzF17FETRN4CQemYiCLb50wGHK8S6ED81mJSyvE5cNzceotYu9f6x_jo-lp2_dCR2mhxBbuB-Oq0VAup3-Mqi0-SReRltmNiNb3Yoq3WMrx5WEmGiObTz8-e91SI6JFDQJckD1A?testcase_id=5686533885788160

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 6 by ClusterFuzz, Jul 30 2016

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase is verified as fixed, closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Components: -Tools>Test>FindIt>NoResult
Project Member

Comment 8 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

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