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Issue metadata

Status: Verified
Owner:
Closed: Jun 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in pplex

Project Member Reported by ClusterFuzz, Nov 27 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5213338889093120

Fuzzer: libfuzzer_angle_translator_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  pplex
  pp::Tokenizer::lex
  pp::DirectiveParser::lex
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=420371:420478

Minimized Testcase (0.25 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94dZtes6vzhRl3alzjJq1R4Ng7Li-BDOA5zL5GKVfG0Yl5trxEXpC2xuJz7YI3fGMGmtxqeupzM2vKrtzZMggSQfrIDK2I9qERIojDu1bqZUxxgLG_RZyQuBJAOeb9E6fcOA8FpNJt32TZ0pOkr6E3fBhwPyQ?testcase_id=5213338889093120

Issue filed automatically.

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

Comment 1 by ajha@chromium.org, Nov 27 2016

Labels: M-55
Components: Internals>GPU>ANGLE

Comment 3 by enne@chromium.org, Jan 31 2017

Owner: cwallez@chromium.org
Status: Assigned (was: Untriaged)
cwallez: Can you investigate or assign to soembody else?
Status: Started (was: Assigned)
A fix is up at https://chromium-review.googlesource.com/c/435042/ but blocked by a flex bug. I will wait for the next flex release to revisit the patches, this failure being very benign.
Project Member

Comment 8 by ClusterFuzz, Jun 8 2017

ClusterFuzz has detected this issue as fixed in range 477633:477688.

Detailed report: https://clusterfuzz.com/testcase?key=5213338889093120

Fuzzer: libFuzzer_angle_translator_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  pplex
  pp::Tokenizer::lex
  pp::DirectiveParser::lex
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=420371:420478
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=477633:477688

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5213338889093120


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 9 by ClusterFuzz, Jun 8 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Started)
ClusterFuzz testcase 5213338889093120 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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