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Issue 786789 link

Starred by 1 user
Status: WontFix
Owner: ----
Closed: Dec 2017
Cc:
cbiesin...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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

Project Member Reported by ClusterFuzz, Nov 19 2017 
Detailed report: https://clusterfuzz.com/testcase?key=6207696436199424

Fuzzer: inferno_twister
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000080
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=473072:473106

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6207696436199424

Additional requirements: Requires HTTP

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Nov 19 2017

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 2 by ClusterFuzz, Nov 19 2017

Labels: Test-Predator-Auto-Owner
Owner: cbiesin...@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/cd916cc43984ff94e84fd5716c8e5d6d04416ec6 (FontCachePurgePreventer is needed when computing MinPreferredWidth).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

Comment 3 by junov@chromium.org, Nov 20 2017

Components: -Blink Blink>Input

Comment 4 by cbiesinger@google.com, Nov 20 2017

Cc: cbiesin...@chromium.org
Owner: ----
very unlikely to be me

Comment 5 by cbiesin...@chromium.org, Nov 21 2017

Status: Available (was: Assigned)
Project Member

Comment 6 by ClusterFuzz, Dec 3 2017

Status: WontFix (was: Available)
ClusterFuzz testcase 6207696436199424 is flaky and no longer crashes, so closing issue.

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