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Issue 819650 link

Starred by 2 users

Issue metadata

Status: Duplicate
Merged: issue 819649
Owner:
Closed: Mar 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Android , Windows , Chrome , Mac , Fuchsia
Pri: 1
Type: Bug-Regression



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CHECK failure: 0UL != length_ in string_piece.h

Project Member Reported by ClusterFuzz, Mar 7 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6540015606431744

Fuzzer: libFuzzer_signed_exchange_header_parser_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  0UL != length_ in string_piece.h
  base::BasicStringPiece<>::front
  content::StructuredHeaderParser::ReadString
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=541008:541022

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6540015606431744

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 7 2018

Components: Blink>Loader
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.
Cc: brajkumar@chromium.org
Labels: -Type-Bug M-67 Test-Predator-Wrong Type-Bug-Regression
Owner: palmer@chromium.org
Status: Assigned (was: Untriaged)
Predator and CL could not provide any possible suspects.

Using Code Search for the file, "string_piece.h" and observed some recent changes for the below file.

Suspect CL: https://chromium.googlesource.com/chromium/src/+/e5a6dfada32caaccc93e4f3ca4cb0bd0f6cdd019%5E%21/base/strings/string_piece.h

palmer@ -- 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!
Cc: palmer@chromium.org jyasskin@chromium.org
Labels: OS-Android OS-Chrome OS-Fuchsia OS-Mac OS-Windows
Owner: ksakamoto@chromium.org
This might or might not be a duplicate of the other one.
Mergedinto: 819649
Status: Duplicate (was: Assigned)
Project Member

Comment 5 by ClusterFuzz, Mar 13 2018

ClusterFuzz has detected this issue as fixed in range 542429:542430.

Detailed report: https://clusterfuzz.com/testcase?key=6540015606431744

Fuzzer: libFuzzer_signed_exchange_header_parser_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  0UL != length_ in string_piece.h
  base::BasicStringPiece<>::front
  content::StructuredHeaderParser::ReadString
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=541008:541022
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=542429:542430

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6540015606431744

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.

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