New issue
Advanced search Search tips

Issue 810021 link

Starred by 1 user

Issue metadata

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



Sign in to add a comment

Null-dereference READ in v8::internal::Code::CopyFrom

Project Member Reported by ClusterFuzz, Feb 7 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6096794694713344

Fuzzer: afl_v8_multi_return_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::Code::CopyFrom
  v8::internal::Heap::AllocateCode
  v8::internal::Factory::NewCode
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=533277:533284

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6096794694713344

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Feb 7 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, Feb 8 2018

Labels: OS-Mac
Cc: clemensh@chromium.org
Components: -Blink>JavaScript>GC Blink>JavaScript>WebAssembly
Owner: ahaas@chromium.org
Status: Assigned (was: Untriaged)
Multi-return fuzzer issue. Andreas, can you take a look?

Comment 4 by ahaas@chromium.org, Feb 12 2018

Mergedinto: 811070
Status: Duplicate (was: Assigned)
Project Member

Comment 5 by ClusterFuzz, Feb 13 2018

ClusterFuzz has detected this issue as fixed in range 536089:536096.

Detailed report: https://clusterfuzz.com/testcase?key=6096794694713344

Fuzzer: afl_v8_multi_return_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::Code::CopyFrom
  v8::internal::Heap::AllocateCode
  v8::internal::Factory::NewCode
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=533277:533284
Fixed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=536089:536096

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6096794694713344

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.

Sign in to add a comment