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Issue metadata

Status: Verified
Owner:
Closed: Jan 9
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Stack-overflow in blink::MHTMLParser::ParseArchiveWithHeader

Project Member Reported by ClusterFuzz, Oct 28

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6626894940995584

Fuzzer: libFuzzer_mhtml_parser_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff9f070f28
Crash State:
  blink::MHTMLParser::ParseArchiveWithHeader
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=452376:452429

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6626894940995584

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 28

Components: Platform
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, Oct 28

Cc: lukasza@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, Oct 28

Labels: Test-Predator-Auto-Owner
Owner: yhirano@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/55d2881ba47ca3ba4eb6fe93f08ad98613777c5f (ParsedContentType parameter name matching should be case insensitive).

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.
Am on a boat @  roughly latitude 36.802197, longitude —121.785957

Reception with data and wifi usu. always bad.

1 hour into using Beta and bandwith is impressive on a Sunday!  Chrome is loading fast! Usually very congested.  Thanks guys!  Feelin' like I'm 5G!
Project Member

Comment 5 by ClusterFuzz, Oct 29

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 6626894940995584 appears to be flaky, updating reproducibility label.
Cc: yhirano@chromium.org
Components: -Platform UI>Browser>Offline
Owner: ----
Status: Unconfirmed (was: Assigned)
Cc: kkaluri@chromium.org
Labels: Test-Predator-Wrong
Owner: dewittj@chromium.org
Status: Assigned (was: Unconfirmed)
Predator and CL could not provide any possible suspects.

Using Code Search for the file, "mhtml/mhtml_parser.cc" suspecting the below Cl might have caused this issue

Suspect CL: https://chromium.googlesource.com/chromium/src/+/ee1a7ef4d3573b44b751f51b122d2fa1eccc3caf

dewittj@ -- Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Thanks!
Project Member

Comment 8 by ClusterFuzz, Jan 9

ClusterFuzz has detected this issue as fixed in range 621021:621022.

Detailed report: https://clusterfuzz.com/testcase?key=6626894940995584

Fuzzer: libFuzzer_mhtml_parser_fuzzer
Fuzz target binary: mhtml_parser_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff9f070f28
Crash State:
  blink::MHTMLParser::ParseArchiveWithHeader
  
Sanitizer: address (ASAN)

Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=621021:621022

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6626894940995584

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 9 by ClusterFuzz, Jan 9

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6626894940995584 is verified as fixed, so closing issue as verified.

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

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