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Issue 716021 link

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Issue metadata

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



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Fatal error in

Project Member Reported by ClusterFuzz, Apr 27 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5342487670685696

Fuzzer: libfuzzer_v8_script_parser_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Fatal error
Crash Address: 
Crash State:
  
  v8::internal::ParserBase<v8::internal::Parser>::ParseClassPropertyDefinition
  v8::internal::ParserBase<v8::internal::Parser>::ParseClassLiteral
  v8::internal::ParserBase<v8::internal::Parser>::ParsePrimaryExpression
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=467541:467576

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5342487670685696


Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Components: Blink>JavaScript
Labels: Test-Predator-Wrong-CLs M-60
Hits "unreachable" code in the parser. Reproduces as follows ...

$ ./out/x64.debug/d8 -e '!class{...o'

#
# Fatal error in .././src/parsing/parser-base.h, line 2391
# unreachable code
#
Owner: marja@chromium.org
Status: Assigned (was: Untriaged)
Regression range is inconclusive. Marja, would you be willing to take a look at this?
Project Member

Comment 4 by ClusterFuzz, Apr 28 2017

ClusterFuzz has detected this issue as fixed in range 467576:467601.

Detailed report: https://clusterfuzz.com/testcase?key=5342487670685696

Fuzzer: libfuzzer_v8_script_parser_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Fatal error
Crash Address: 
Crash State:
  
  v8::internal::ParserBase<v8::internal::Parser>::ParseClassPropertyDefinition
  v8::internal::ParserBase<v8::internal::Parser>::ParseClassLiteral
  v8::internal::ParserBase<v8::internal::Parser>::ParsePrimaryExpression
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=467541:467576
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=467576:467601

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5342487670685696


See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.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 5 by ClusterFuzz, Apr 28 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5342487670685696 is verified as fixed, so closing issue.

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

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