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Issue metadata

Status: Verified
Owner:
Closed: Jun 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug

Blocked on:
issue 849599



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Stack-overflow in __msan_memcpy

Project Member Reported by ClusterFuzz, May 30 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5464004047405056

Fuzzer: bj_broddelwerk
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7ffc74407fe8
Crash State:
  __msan_memcpy
  blink::ContainerNode::DetachLayoutTree
  blink::Element::DetachLayoutTree
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=561370:561371

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5464004047405056

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 30 2018

Components: Blink>DOM
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 30 2018

Labels: Test-Predator-Auto-Owner
Owner: hayato@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/79925868d14e19bb4bfb38d09bdd6565c8f4c9a1 (Don't recalc assignement in HTMLSlotElement::DetachLayoutTree).

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.

Comment 3 by hayato@chromium.org, May 31 2018

Status: Started (was: Assigned)
Blockedon: 849599
Labels: -Pri-1 Pri-2
I've filed an issue here: https://bugs.chromium.org/p/chromium/issues/detail?id=849599.

This is not a regression by https://chromium.googlesource.com/chromium/src/+/79925868d14e19bb4bfb38d09bdd6565c8f4c9a1.

The CL just reverted the workaround of https://chromium-review.googlesource.com/c/1062990.

We can repro the issue before https://chromium-review.googlesource.com/c/1062990.
Status: Fixed (was: Started)
This should be fixed at https://chromium-review.googlesource.com/c/chromium/src/+/1090420
Project Member

Comment 6 by ClusterFuzz, Jun 8 2018

ClusterFuzz has detected this issue as fixed in range 565322:565323.

Detailed report: https://clusterfuzz.com/testcase?key=5464004047405056

Fuzzer: bj_broddelwerk
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7ffc74407fe8
Crash State:
  __msan_memcpy
  blink::ContainerNode::DetachLayoutTree
  blink::Element::DetachLayoutTree
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=561370:561371
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=565322:565323

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5464004047405056

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 7 by ClusterFuzz, Jun 8 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 5464004047405056 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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