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Issue 623893 link

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Issue metadata

Status: Verified
Owner:
Last visit > 30 days ago
Closed: Jun 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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static_cast<size_t>(skCanvas->getSaveCount()) == m_stateStack.size()

Project Member Reported by ClusterFuzz, Jun 28 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6260433858330624

Fuzzer: inferno_canvas_wrecker
Job Type: linux_debug_chrome
Platform Id: linux

Crash Type: ASSERT
Crash Address: 
Crash State:
  static_cast<size_t>(skCanvas->getSaveCount()) == m_stateStack.size()
  blink::CanvasRenderingContext2D::validateStateStack
  blink::BaseRenderingContext2D::realizeSaves
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_chrome&range=173978:174317

Minimized Testcase (13.16 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95cPWKZmL1QLN3OesIklT5UwiRAjvnVa1Ko4uh5xsI0J1xBM2EOwBe70dYqXdNgO_BDq4rnSL8Lg_4BLNcOwS-Tl5ZPstuey1oTXPKqYGyM0VWIzVgYsn9t42HzRlhFtbngY4RhTI6rDfrkJjye1jqDyfPI5g?testcase_id=6260433858330624

Filer: tkonchada

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Components: Blink
Labels: findit-for-crash Te-Logged M-52
Owner: junov@chromium.org
Status: Assigned (was: Available)
Suspected CLs	No CL in the regression range changes the crashed files. The result is the blame information.

Author: junov@chromium.org
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/469eb0aa281bca66d0f094b673612975f8cf179e
Time: Wed Jun 03 19:15:14 2015
The CL last changed line 156 of file CanvasRenderingContext2D.cpp, which is stack frame 0.

Author: ikilpatrick
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/b1592675744d6ebd5f7968daf455c34703ba9488
Time: Thu Feb 25 18:50:58 2016
The CL last changed line 50 of file BaseRenderingContext2D.cpp, which is stack frame 1.

Author: ikilpatrick
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/b1592675744d6ebd5f7968daf455c34703ba9488
Time: Thu Feb 25 18:50:58 2016
The CL last changed line 44 of file BaseRenderingContext2D.cpp, which is stack frame 2.

Author: ikilpatrick
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/b1592675744d6ebd5f7968daf455c34703ba9488
Time: Thu Feb 25 18:50:58 2016
The CL last changed line 452 of file BaseRenderingContext2D.cpp, which is stack frame 3.

Possible suspect : https://codereview.chromium.org/1093673002

Please reassign if this is not related to your change

Comment 2 by joh...@chromium.org, Jun 28 2016

Components: -Blink Blink>Canvas
Project Member

Comment 3 by sheriffbot@chromium.org, Jun 28 2016

Labels: -M-52 M-53 MovedFrom-52
Moving this nonessential bug to the next milestone.

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

Comment 4 by ClusterFuzz, Jun 29 2016

ClusterFuzz has detected this issue as fixed in range 402316:402437.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6260433858330624

Fuzzer: inferno_canvas_wrecker
Job Type: linux_debug_chrome
Platform Id: linux

Crash Type: ASSERT
Crash Address: 
Crash State:
  static_cast<size_t>(skCanvas->getSaveCount()) == m_stateStack.size()
  blink::CanvasRenderingContext2D::validateStateStack
  blink::BaseRenderingContext2D::realizeSaves
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_chrome&range=173978:174317
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_chrome&range=402316:402437

Minimized Testcase (13.16 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95cPWKZmL1QLN3OesIklT5UwiRAjvnVa1Ko4uh5xsI0J1xBM2EOwBe70dYqXdNgO_BDq4rnSL8Lg_4BLNcOwS-Tl5ZPstuey1oTXPKqYGyM0VWIzVgYsn9t42HzRlhFtbngY4RhTI6rDfrkJjye1jqDyfPI5g?testcase_id=6260433858330624

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, Jun 29 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 6 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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