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Issue 629518 link

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Issue metadata

Status: Verified
Owner:
Closed: Jul 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Undefined-shift in ppparse

Project Member Reported by ClusterFuzz, Jul 19 2016

Issue description

Comment 1 by piman@chromium.org, Jul 19 2016

Cc: -piman@google.com geoffl...@chromium.org cwallez@chromium.org piman@chromium.org
Owner: jmad...@chromium.org
Looks like an issue in the ANGLE parser... I can help you go through the repro steps if you need.

Comment 2 by piman@chromium.org, Jul 19 2016

Cc: piman@google.com
 Issue 629517  has been merged into this issue.

Comment 3 by piman@chromium.org, Jul 19 2016

 Issue 629519  has been merged into this issue.
Status: Assigned (was: Available)
Good fuzzer! Will investigate.
Project Member

Comment 6 by ClusterFuzz, Jul 24 2016

ClusterFuzz has detected this issue as fixed in range 407329:407362.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5992143097430016

Fuzzer: libfuzzer_gpu_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  ppparse
  pp::ExpressionParser::parse
  pp::DirectiveParser::parseLine
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=405489:405645
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=407329:407362

Minimized Testcase (2.07 Kb): https://cluster-fuzz.appspot.com/download/AMIfv948njD63WZQk80M1iQtld7Qpbpsn4Kr6eQJ9yzlYU-ERtjb0erIwTINcJsQ7Fsz08ASYnz1pxLFHm7Q5_BEVv5rsyNPm2EbNr4_Zka8C0G_rOXWhUX31Cngdmf_S5ca4pLN6V1kO01c9uPiGEW1F9YM11nrzQ?testcase_id=5992143097430016

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 7 by ClusterFuzz, Jul 24 2016

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

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

Comment 8 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

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

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