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Issue 729507 link

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Issue metadata

Status: Verified
Owner:
Closed: Jun 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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CHECK failure: backing_store_[index++] == static_cast<uint32_t>(name->length()) in preparsed-sc

Project Member Reported by ClusterFuzz, Jun 5 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5160546738634752

Fuzzer: inferno_js_fuzzer
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  backing_store_[index++] == static_cast<uint32_t>(name->length()) in preparsed-sc
  
Sanitizer: address (ASAN)

Regressed: V8: 44723:44724

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5160546738634752


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Project Member

Comment 1 by sheriffbot@chromium.org, Jun 5 2017

Labels: M-60
Project Member

Comment 2 by sheriffbot@chromium.org, Jun 5 2017

Labels: ReleaseBlock-Beta
This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

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

Comment 3 by sheriffbot@chromium.org, Jun 5 2017

Labels: Pri-1
Owner: marja@chromium.org
Status: Assigned (was: Untriaged)
Project Member

Comment 5 by sheriffbot@chromium.org, Jun 6 2017

Labels: -Security_Impact-Head Security_Impact-Beta

Comment 6 by marja@chromium.org, Jun 6 2017

Labels: -Type-Bug-Security -ReleaseBlock-Beta -Security_Severity-High -Security_Impact-Beta -M-60 Type-Bug
--experimental-preparser-scope-analysis-stuff; not shipping that flag
Project Member

Comment 7 by ClusterFuzz, Jun 24 2017

ClusterFuzz has detected this issue as fixed in range 46168:46169.

Detailed report: https://clusterfuzz.com/testcase?key=5160546738634752

Fuzzer: inferno_js_fuzzer
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  backing_store_[index++] == static_cast<uint32_t>(name->length()) in preparsed-sc
  
Sanitizer: address (ASAN)

Regressed: V8: 44723:44724
Fixed: V8: 46168:46169

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5160546738634752


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 8 by ClusterFuzz, Jun 24 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5160546738634752 is verified as fixed, so closing issue.

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

Comment 9 by sheriffbot@chromium.org, Jun 24 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Project Member

Comment 10 by sheriffbot@chromium.org, Sep 30 2017

Labels: -Restrict-View-SecurityNotify allpublic
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

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