New issue
Advanced search Search tips

Issue 901239 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: Nov 2
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 1
Type: Bug



Sign in to add a comment

Null-dereference READ in v8::internal::VariableProxy::var

Project Member Reported by ClusterFuzz, Nov 2

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5646596525785088

Fuzzer: libFuzzer_javascript_parser_proto_fuzzer
Job Type: mac_libfuzzer_chrome_asan
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  v8::internal::VariableProxy::var
  v8::internal::interpreter::BytecodeGenerator::VisitAssignment
  v8::internal::interpreter::BytecodeGenerator::VisitInitializeClassFieldsStatemen
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=601098:601115

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5646596525785088

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Project Member

Comment 1 by ClusterFuzz, Nov 2

Components: Blink>JavaScript>Interpreter Blink>JavaScript>Language
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 2

Cc: marja@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Project Member

Comment 3 by ClusterFuzz, Nov 2

Labels: Test-Predator-Auto-Owner
Owner: ftang@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/4555961efab133a5fa5c7d3628cd3422e785efc4 (Reland "[Intl] Move Intl.getCanonicalLocales to C++").

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.
Labels: Test-Predator-Wrong-CLs
Owner: ----
Status: Available (was: Assigned)
Project Member

Comment 5 by ClusterFuzz, Nov 2

ClusterFuzz has detected this issue as fixed in range 603675:604734.

Detailed report: https://clusterfuzz.com/testcase?key=5646596525785088

Fuzzer: libFuzzer_javascript_parser_proto_fuzzer
Job Type: mac_libfuzzer_chrome_asan
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  v8::internal::VariableProxy::var
  v8::internal::interpreter::BytecodeGenerator::VisitAssignment
  v8::internal::interpreter::BytecodeGenerator::VisitInitializeClassFieldsStatemen
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=601098:601115
Fixed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=603675:604734

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5646596525785088

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md 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, Nov 2

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 5646596525785088 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Owner: gsat...@chromium.org

Sign in to add a comment