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Issue 632611 link

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Issue metadata

Status: Verified
Owner:
Last visit > 30 days ago
Closed: Jul 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug-Regression



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Crash in removeAllBounded

Project Member Reported by ClusterFuzz, Jul 29 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6021490256642048

Fuzzer: libfuzzer_skia_pathop_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000078
Crash State:
  removeAllBounded
  updateBounded
  SkTSect<SkDConic, SkDConic>::extractCoincident
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=405990:406128

Minimized Testcase (0.48 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97wnk8LqMs_1FKK0gIWWpum1qmxhO3B4UvDe6fUYd8iNB9e8gFGszGg4UaVaThNSpUn9VB9LgoGsqh3hSWNQhdp1Xhr2d5J67S9xYYfji7UEBGLyig-CMvxSgVoLxDhD-skYf4wO86_WUVuMSo-dNjtL71kCQ?testcase_id=6021490256642048

Filer: rnimmagadda

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Components: Internals>Skia Tools>Test>FindIt>CorrectResult
Labels: -Pri-1 -Type-Bug M-54 Findit-for-crash Te-Logged Pri-2 Type-Bug-Regression
Owner: caryclark@chromium.org
Status: Assigned (was: Untriaged)
Based on this issue "631374".

@caryclark: Could you please look into this issue.

Else, suspecting:

Author: caryclark
Project: chromium-skia
Changelist: https://chromium.googlesource.com/skia.git/+/55888e44171ffd48b591d19256884a969fe4da17
Time: Mon Jul 18 17:01:36 2016
File SkAddIntersections.cpp is changed in this cl (and is part of stack frame #6, "AddIntersectTs")
Minimum distance from crash line to modified line: 24. (file: SkAddIntersections.cpp, crashed on: 484, modified: 508).

Thank you.
I'm away on vacation. I'll be back August 8th.
Project Member

Comment 3 by ClusterFuzz, Jul 31 2016

ClusterFuzz has detected this issue as fixed in range 408389:408457.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6021490256642048

Fuzzer: libfuzzer_skia_pathop_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000078
Crash State:
  removeAllBounded
  updateBounded
  SkTSect<SkDConic, SkDConic>::extractCoincident
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=405990:406128
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=408389:408457

Minimized Testcase (0.48 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97wnk8LqMs_1FKK0gIWWpum1qmxhO3B4UvDe6fUYd8iNB9e8gFGszGg4UaVaThNSpUn9VB9LgoGsqh3hSWNQhdp1Xhr2d5J67S9xYYfji7UEBGLyig-CMvxSgVoLxDhD-skYf4wO86_WUVuMSo-dNjtL71kCQ?testcase_id=6021490256642048

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 4 by ClusterFuzz, Jul 31 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.
Project Member

Comment 5 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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