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Issue metadata

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



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CHECK failure: NumberToUint32 of kRepWord32 (Range(1, NUMBER)) cannot be changed to kRepTaggedS

Project Member Reported by ClusterFuzz, Dec 5 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4704829162389504

Fuzzer: mbarbella_js_mutation
Job Type: linux_ubsan_vptr_d8
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  NumberToUint32 of kRepWord32 (Range(1, NUMBER)) cannot be changed to kRepTaggedS
  v8::internal::compiler::RepresentationChanger::TypeError
  v8::internal::compiler::RepresentationChanger::GetRepresentationFor
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=49849:49850

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4704829162389504

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Dec 5 2017

Components: Blink>JavaScript>Compiler
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.
Project Member

Comment 2 by ClusterFuzz, Dec 5 2017

Labels: Test-Predator-Auto-Owner
Owner: jarin@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/cc07ac73a460de3d933ebe7aebf0f55b741eb5cf ([turbofan] Make sure TruncatingUseInfoFromRepresentation respects Smi representation.).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.
Project Member

Comment 3 by sheriffbot@chromium.org, Dec 5 2017

Labels: Pri-1
Project Member

Comment 4 by ClusterFuzz, Dec 6 2017

ClusterFuzz has detected this issue as fixed in range 49852:49853.

Detailed report: https://clusterfuzz.com/testcase?key=4704829162389504

Fuzzer: mbarbella_js_mutation
Job Type: linux_ubsan_vptr_d8
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  NumberToUint32 of kRepWord32 (Range(1, NUMBER)) cannot be changed to kRepTaggedS
  v8::internal::compiler::RepresentationChanger::TypeError
  v8::internal::compiler::RepresentationChanger::GetRepresentationFor
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=49849:49850
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=49852:49853

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4704829162389504

See https://github.com/google/clusterfuzz-tools 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 6 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4704829162389504 is verified as fixed, so closing issue as verified.

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

Comment 6 by sheriffbot@chromium.org, Dec 6 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Project Member

Comment 7 by sheriffbot@chromium.org, Mar 14

Labels: -Restrict-View-SecurityNotify allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

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

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