New issue
Advanced search Search tips

Issue 796367 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: Dec 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 1
Type: Bug



Sign in to add a comment

Null-dereference READ in v8_fuzzer::FuzzerSupport::GetIsolate

Project Member Reported by ClusterFuzz, Dec 19 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5883894506455040

Fuzzer: libFuzzer_v8_wasm_globals_section_fuzzer
Job Type: mac_libfuzzer_chrome_asan
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  v8_fuzzer::FuzzerSupport::GetIsolate
  v8::internal::wasm::fuzzer::FuzzWasmSection
  start
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=493100:493156

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5883894506455040

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 19 2017

Components: Blink>JavaScript
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.
Owner: mmoroz@chromium.org
Status: Assigned (was: Untriaged)
Max, this looks like the thing you fixed yesterday. Can you verify?
Project Member

Comment 3 by ClusterFuzz, Dec 20 2017

ClusterFuzz has detected this issue as fixed in range 525123:525236.

Detailed report: https://clusterfuzz.com/testcase?key=5883894506455040

Fuzzer: libFuzzer_v8_wasm_globals_section_fuzzer
Job Type: mac_libfuzzer_chrome_asan
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  v8_fuzzer::FuzzerSupport::GetIsolate
  v8::internal::wasm::fuzzer::FuzzWasmSection
  start
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=493100:493156
Fixed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=525123:525236

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5883894506455040

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 4 by ClusterFuzz, Dec 20 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5883894506455040 is verified as fixed, so closing issue as verified.

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

Comment 5 by mmoroz@chromium.org, Dec 20 2017

Yes, looks fixed now.

Sign in to add a comment