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Issue metadata

Status: Verified
Owner: ----
Closed: Jul 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Bug



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Bus in gldRenderFillPolygonPtr

Project Member Reported by ClusterFuzz, Jun 5 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5784141529612288

Fuzzer: ifratric-browserfuzzer-v3
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Bus
Crash Address: 0x62910010e1e0
Crash State:
  gldRenderFillPolygonPtr
  gleFlushAtomicFunc
  glDrawElements_IMM_GL3Exec
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=463718:463770

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5784141529612288


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Components: Blink>WebGL
[ mac bug triage ]

Tentatively tagging Blink>WebGL, please fix if incorrect.

Comment 2 by zmo@chromium.org, Jun 6 2017

Cc: kbr@chromium.org piman@chromium.org
Components: -Blink>WebGL Internals>GPU
Labels: -Pri-1 Pri-2
The crash seems from the driver (is it osmesa?), not from Chrome.
Google search results for gldRenderFillPolygonPtr seem to indicate it's a Mac GL driver. Do these run on real hardware?

Comment 4 by kbr@chromium.org, Jun 6 2017

Cc: ericrk@chromium.org
Components: -Internals>GPU Internals>GPU>Rasterization Internals>GPU>Internals
There's no WebGL in this test case. It looks like it's creating some huge clip path which might be causing a large framebuffer to be allocated and fail to allocate, or similar.

Cc: bsalomon@chromium.org robertphillips@chromium.org
Status: Available (was: Untriaged)
Project Member

Comment 6 by ClusterFuzz, Jul 13 2017

ClusterFuzz has detected this issue as fixed in range 486222:486253.

Detailed report: https://clusterfuzz.com/testcase?key=5784141529612288

Fuzzer: ifratric-browserfuzzer-v3
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Bus
Crash Address: 0x62910010e1e0
Crash State:
  gldRenderFillPolygonPtr
  gleFlushAtomicFunc
  glDrawElements_IMM_GL3Exec
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=463718:463770
Fixed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=486222:486253

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5784141529612288


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 7 by ClusterFuzz, Jul 13 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 5784141529612288 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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