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Issue 899115 link

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Issue metadata

Status: Verified
Owner:
Closed: Oct 27
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Ill in v8::internal::compiler::MapRef::prototype

Project Member Reported by ClusterFuzz, Oct 26

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4640584420294656

Fuzzer: ochang_js_fuzzer
Job Type: linux_ubsan_vptr_d8
Platform Id: linux

Crash Type: Ill
Crash Address: 0x5633e4bc63be
Crash State:
  v8::internal::compiler::MapRef::prototype
  v8::internal::compiler::CanInlineArrayIteratingBuiltin
  v8::internal::compiler::JSCallReducer::ReduceArrayIndexOfIncludes
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=56990:56991

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4640584420294656

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 26

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, Oct 26

Labels: Test-Predator-Auto-Owner
Owner: neis@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/5ed7e71f5cd9b1f50a77b1e09d5607d4741f3237 (Make --future imply --concurrent-inlining.).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Labels: -Pri-1 Pri-2
Status: Started (was: Assigned)
Project Member

Comment 4 by bugdroid1@chromium.org, Oct 26

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/cd629c01ec509daaf64f096fda76038ecc2ab259

commit cd629c01ec509daaf64f096fda76038ecc2ab259
Author: Georg Neis <neis@chromium.org>
Date: Fri Oct 26 14:10:45 2018

[turbofan] Serialize receiver prototypes more often.

This just adds calls to SerializePrototype right before we access the
serialized prototype. Eventually we need to do this earlier.

Bug: v8:7790,  chromium:899115 
Change-Id: I597e95f5f6df8aae608ee295fe9550e7c2a45e6d
Reviewed-on: https://chromium-review.googlesource.com/c/1301475
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57034}
[modify] https://crrev.com/cd629c01ec509daaf64f096fda76038ecc2ab259/src/compiler/js-call-reducer.cc
[add] https://crrev.com/cd629c01ec509daaf64f096fda76038ecc2ab259/test/mjsunit/regress/regress-899115.js

Project Member

Comment 5 by ClusterFuzz, Oct 27

ClusterFuzz has detected this issue as fixed in range 57033:57034.

Detailed report: https://clusterfuzz.com/testcase?key=4640584420294656

Fuzzer: ochang_js_fuzzer
Job Type: linux_ubsan_vptr_d8
Platform Id: linux

Crash Type: Ill
Crash Address: 0x5633e4bc63be
Crash State:
  v8::internal::compiler::MapRef::prototype
  v8::internal::compiler::CanInlineArrayIteratingBuiltin
  v8::internal::compiler::JSCallReducer::ReduceArrayIndexOfIncludes
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=56990:56991
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=57033:57034

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4640584420294656

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 6 by ClusterFuzz, Oct 27

Labels: ClusterFuzz-Verified
Status: Verified (was: Started)
ClusterFuzz testcase 4640584420294656 is verified as fixed, so closing issue as verified.

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

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