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Issue 845118 link

Starred by 2 users

Issue metadata

Status: Verified
Owner:
Closed: Aug 14
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 3
Type: Bug



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Null-dereference READ in glEndTransformFeedback_Exec

Project Member Reported by ClusterFuzz, May 21 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6159546553466880

Fuzzer: inferno_twister_c
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  glEndTransformFeedback_Exec
  gpu::gles2::TransformFeedback::DoEndTransformFeedback
  gpu::gles2::GLES2DecoderImpl::HandleEndTransformFeedback
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=542269:542287

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6159546553466880

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, May 21 2018

Components: Internals>GPU>Internals
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 2 by ClusterFuzz, May 21 2018

Labels: Test-Predator-Auto-Owner
Owner: jdarpinian@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/61c71162b81037b9db2b09d03d940b424a5b5eb9 (Implement new transform feedback buffer binding rules).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Looks like a mac driver bug. glEndTransformFeedback_Exec is a driver function. I will try to repro and file a radar.
Labels: -Pri-1 Pri-3
Does not repro on my machine. I think users are very unlikely to hit this given how rare transform feedback is, and impact of a GPU process crash is low as it will restart seamlessly. Lowering priority.
Project Member

Comment 5 by ClusterFuzz, Aug 14

ClusterFuzz has detected this issue as fixed in range 582836:582839.

Detailed report: https://clusterfuzz.com/testcase?key=6159546553466880

Fuzzer: inferno_twister_c
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  glEndTransformFeedback_Exec
  gpu::gles2::TransformFeedback::DoEndTransformFeedback
  gpu::gles2::GLES2DecoderImpl::HandleEndTransformFeedback
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=542269:542287
Fixed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=582836:582839

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6159546553466880

See https://github.com/google/clusterfuzz-tools 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, Aug 14

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6159546553466880 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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