New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 826823 link

Starred by 1 user

Issue metadata

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



Sign in to add a comment

Null-dereference READ in v8::internal::MarkCompactCollector::ClearFullMapTransitions

Project Member Reported by ClusterFuzz, Mar 28 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6595957446410240

Fuzzer: mbarbella_js_mutation
Job Type: linux_cfi_d8
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::MarkCompactCollector::ClearFullMapTransitions
  v8::internal::MarkCompactCollector::ClearNonLiveReferences
  v8::internal::MarkCompactCollector::CollectGarbage
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_d8&range=52271:52272

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6595957446410240

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 28 2018

Components: Blink>JavaScript>GC
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, Mar 28 2018

Labels: Test-Predator-Auto-Owner
Owner: marja@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/61195eb6817727f6a6374b8bdf565c285af17cfb ([in-place weak refs] Replace the WeakCell potentially in Map::raw_transitions_.).

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.
Project Member

Comment 3 by ClusterFuzz, Mar 29 2018

ClusterFuzz has detected this issue as fixed in range 52274:52275.

Detailed report: https://clusterfuzz.com/testcase?key=6595957446410240

Fuzzer: mbarbella_js_mutation
Job Type: linux_cfi_d8
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::MarkCompactCollector::ClearFullMapTransitions
  v8::internal::MarkCompactCollector::ClearNonLiveReferences
  v8::internal::MarkCompactCollector::CollectGarbage
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_d8&range=52271:52272
Fixed: https://clusterfuzz.com/revisions?job=linux_cfi_d8&range=52274:52275

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6595957446410240

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 4 by ClusterFuzz, Mar 29 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6595957446410240 is verified as fixed, so closing issue as verified.

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

Sign in to add a comment