Automatically adding ccs based on suspected regression changelists:

De/serializes SharedArrayBuffers. by malcolmwhite@google.com - https://chromium.googlesource.com/v8/v8/+/982c3164033d3afd51c0d765fc4af98f22b5ccd4

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.

CF points to 982c3164033d3afd51c0d765fc4af98f22b5ccd4, PTAL.
Can't assign to the author: malcolmwhite@google.com.

Looking into this

Detailed report: https://clusterfuzz.com/testcase?key=4927243793727488

Job Type: windows_asan_d8_dbg
Crash Type: Heap-use-after-free READ 4
Crash Address: 0x11fc58bc3520
Crash State:
  v8::internal::ElementsAccessorBase<v8::internal::TypedElementsAccessor<v8::inter
  v8::internal::LookupIterator::FetchValue
  v8::internal::LookupIterator::GetDataValue
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4927243793727488

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

FYI: It looks like the UAF only occurs in d8.

This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/1f2442ababce0c8792e278abc2b225e0d59d3ce5

commit 1f2442ababce0c8792e278abc2b225e0d59d3ce5
Author: Malcolm White <malcolmwhite@google.com>
Date: Tue Jan 30 23:12:20 2018

Fixes UAF for SAB with failed d8 serialization


Bug= chromium:806582 

Change-Id: I0d541903dfd1622ae6d4a2628c41dc28704680e6
Reviewed-on: https://chromium-review.googlesource.com/891626
Reviewed-by: Ben Smith <binji@chromium.org>
Commit-Queue: Malcolm White <malcolmwhite@google.com>
Cr-Commit-Position: refs/heads/master@{#50972}
[modify] https://crrev.com/1f2442ababce0c8792e278abc2b225e0d59d3ce5/src/d8.cc
[modify] https://crrev.com/1f2442ababce0c8792e278abc2b225e0d59d3ce5/src/d8.h

ClusterFuzz has detected this issue as fixed in range 50971:50972.

Detailed report: https://clusterfuzz.com/testcase?key=4927243793727488

Job Type: windows_asan_d8_dbg
Crash Type: Heap-use-after-free READ 4
Crash Address: 0x11fc58bc3520
Crash State:
  v8::internal::ElementsAccessorBase<v8::internal::TypedElementsAccessor<v8::inter
  v8::internal::LookupIterator::FetchValue
  v8::internal::LookupIterator::GetDataValue
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Fixed: https://clusterfuzz.com/revisions?job=windows_asan_d8_dbg&range=50971:50972

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4927243793727488

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.

ClusterFuzz has detected this issue as fixed in range 50971:50972.

Detailed report: https://clusterfuzz.com/testcase?key=4878190905131008

Fuzzer: ochang_js_fuzzer
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: Heap-use-after-free READ 4
Crash Address: 0x603000016c70
Crash State:
  get_scalar_from_data_ptr
  get_scalar
  get
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_d8_dbg&range=50698:50699
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_d8_dbg&range=50971:50972

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4878190905131008

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.

ClusterFuzz testcase 4878190905131008 is verified as fixed, so closing issue as verified.

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

This bug requires manual review: M67 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: cmasso@(Android), cmasso@(iOS), kbleicher@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

+awhalley@ for M67 merge review. 

No merge needed.

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot