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Issue metadata

Status: Duplicate
Merged: issue 794405
Owner:
Closed: Dec 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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CHECK failure: LoadElement of kRepFloat64 (NumberOrHole) cannot be changed to kRepTagged in rep

Project Member Reported by ClusterFuzz, Dec 12 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5089913648447488

Fuzzer: mbarbella_js_mutation
Job Type: linux_ubsan_vptr_d8
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  LoadElement of kRepFloat64 (NumberOrHole) cannot be changed to kRepTagged in rep
  v8::internal::compiler::RepresentationChanger::TypeError
  v8::internal::compiler::RepresentationSelector::ConvertInput
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=49986:49987

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5089913648447488

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 12 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 13 2017

ClusterFuzz has detected this issue as fixed in range 50060:50061.

Detailed report: https://clusterfuzz.com/testcase?key=5089913648447488

Fuzzer: mbarbella_js_mutation
Job Type: linux_ubsan_vptr_d8
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  LoadElement of kRepFloat64 (NumberOrHole) cannot be changed to kRepTagged in rep
  v8::internal::compiler::RepresentationChanger::TypeError
  v8::internal::compiler::RepresentationSelector::ConvertInput
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=49986:49987
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=50060:50061

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5089913648447488

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 3 by sheriffbot@chromium.org, Dec 13 2017

Labels: Pri-1

Comment 4 by cthomp@chromium.org, Dec 13 2017

Labels: Security_Impact-Head
Owner: bmeu...@chromium.org
This looks like it might be related to  crbug.com/794405 . lusterfuzz says that both were introduced by crrev.com/c/818193 and have been fixed by crrev.com/c/819510.


bmeurer@: Would you be able to check these two failures, or suggest someone who can, and whether there is more work needed to address them? Thanks.


Comment 5 by cthomp@chromium.org, Dec 13 2017

Status: Assigned (was: Untriaged)
Mergedinto: 794405
Status: Duplicate (was: Assigned)
Indeed, it's a dupe of 794405
Project Member

Comment 7 by sheriffbot@chromium.org, Mar 22

Labels: -Restrict-View-SecurityTeam 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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