New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 779958 link

Starred by 1 user

Issue metadata

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



Sign in to add a comment

Integer-overflow in ConstantUnion::operator*

Project Member Reported by ClusterFuzz, Oct 31 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5350680180293632

Fuzzer: libFuzzer_swiftshader_vertex_routine_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  ConstantUnion::operator*
  TIntermConstantUnion::fold
  TIntermediate::addBinaryMath
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=512576:512620

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5350680180293632

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Cc: msrchandra@chromium.org capn@chromium.org pnangunoori@chromium.org
Components: Internals>GPU>SwiftShader
Labels: M-64 Test-Predator-Wrong CF-NeedsTriage
Unable to provide possible suspect using Predator, CL and Code Search.
Could someone please look into the issue.
Thank You.

Comment 2 by capn@chromium.org, Oct 31 2017

Cc: sugoi@chromium.org
Owner: capn@chromium.org
Status: Assigned (was: Untriaged)
Cc: kkaluri@chromium.org
 Issue 780340  has been merged into this issue.
Project Member

Comment 4 by ClusterFuzz, Dec 5 2017

ClusterFuzz has detected this issue as fixed in range 521492:521536.

Detailed report: https://clusterfuzz.com/testcase?key=5350680180293632

Fuzzer: libFuzzer_swiftshader_vertex_routine_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  ConstantUnion::operator*
  TIntermConstantUnion::fold
  TIntermediate::addBinaryMath
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=512576:512620
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=521492:521536

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5350680180293632

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.
Project Member

Comment 5 by ClusterFuzz, Dec 5 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5350680180293632 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Issue 792103 has been merged into this issue.
Project Member

Comment 7 by ClusterFuzz, Dec 12 2017

Labels: Needs-Feedback
ClusterFuzz testcase 6621738296410112 is still reproducing on tip-of-tree build (trunk).

Please re-test your fix against this testcase and if the fix was incorrect or incomplete, please re-open the bug. Otherwise, ignore this notification and add ClusterFuzz-Wrong label.

Sign in to add a comment