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Issue metadata

Status: Verified
Owner: ----
Closed: May 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 1
Type: Bug



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Null-dereference READ in blink::MouseEventManager::TryStartDrag

Project Member Reported by ClusterFuzz, May 24 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6645274605518848

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000088
Crash State:
  blink::MouseEventManager::TryStartDrag
  blink::MouseEventManager::HandleDrag
  blink::MouseEventManager::HandleDragDropIfPossible
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=527199:527221

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6645274605518848

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 24 2018

ClusterFuzz has detected this issue as fixed in range 561261:561263.

Detailed report: https://clusterfuzz.com/testcase?key=6645274605518848

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000088
Crash State:
  blink::MouseEventManager::TryStartDrag
  blink::MouseEventManager::HandleDrag
  blink::MouseEventManager::HandleDragDropIfPossible
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=527199:527221
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=561261:561263

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6645274605518848

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 2 by ClusterFuzz, May 24 2018

Labels: OS-Mac
Project Member

Comment 3 by ClusterFuzz, May 24 2018

Components: Blink
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 4 by ClusterFuzz, May 24 2018

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 5 by ClusterFuzz, May 24 2018

Cc: caseq@chromium.org l...@chromium.org drott@chromium.org
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

DevTools: ignore hash in url when searching for associated uiSourceCode by luoe@chromium.org - https://chromium.googlesource.com/chromium/src/+/3b46beb71bae6552e11b09ccba1b0b61ed9709e6

DevTools: deflake interception auth tests by caseq@chromium.org - https://chromium.googlesource.com/chromium/src/+/b387ae77db90142d2bddf9c1aa45cd258e4a6689

Add Lohit Gumurkhi, Garuda to the list of GCS synced linux fonts by drott@chromium.org - https://chromium.googlesource.com/chromium/src/+/79e55b710feeee1d464b50d5ddabb70901cbdff8

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
Project Member

Comment 6 by ClusterFuzz, May 24 2018

Automatically adding ccs based on suspected regression changelists:

DevTools: ignore hash in url when searching for associated uiSourceCode by luoe@chromium.org - https://chromium.googlesource.com/chromium/src/+/3b46beb71bae6552e11b09ccba1b0b61ed9709e6

DevTools: deflake interception auth tests by caseq@chromium.org - https://chromium.googlesource.com/chromium/src/+/b387ae77db90142d2bddf9c1aa45cd258e4a6689

Add Lohit Gumurkhi, Garuda to the list of GCS synced linux fonts by drott@chromium.org - https://chromium.googlesource.com/chromium/src/+/79e55b710feeee1d464b50d5ddabb70901cbdff8

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
Project Member

Comment 7 by ClusterFuzz, May 24 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6645274605518848 is verified as fixed, so closing issue as verified.

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

Comment 8 by ClusterFuzz, May 24 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6645274605518848 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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