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Issue 892858 link

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Issue metadata

Status: Verified
Owner:
Closed: Oct 8
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Global-buffer-overflow in MemoryRead<unsigned

Project Member Reported by ClusterFuzz, Oct 6

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4829822520655872

Fuzzer: ochang_js_fuzzer
Job Type: linux_asan_d8_v8_arm64_dbg
Platform Id: linux

Crash Type: Global-buffer-overflow READ 4
Crash Address: 0x7f40c3c0d8a3
Crash State:
  MemoryRead<unsigned
  v8::internal::Simulator::LoadStoreHelper
  v8::internal::Simulator::ExecuteInstruction
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_d8_v8_arm64_dbg&range=56413:56414

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4829822520655872

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 6

Labels: Test-Predator-Auto-Owner
Owner: mslekova@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/2a2c9e5f79cc07e7347c21f41ffd8a905a2a867c ([async-await] Refactor await optimization and include async generators).

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.
Project Member

Comment 2 by sheriffbot@chromium.org, Oct 6

Labels: Pri-1
Status: Started (was: Assigned)
Project Member

Comment 4 by bugdroid1@chromium.org, Oct 8

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/890fd9c89f877de1269026135a30e7d4d582ef4b

commit 890fd9c89f877de1269026135a30e7d4d582ef4b
Author: Maya Lekova <mslekova@chromium.org>
Date: Mon Oct 08 09:16:14 2018

[async-await] Fix global-buffer-overflow issue when loading flag

Bug:  chromium:892858 
Change-Id: I97b0b239e3ee0a9073fdbd609fb26271dda64d6d
Reviewed-on: https://chromium-review.googlesource.com/c/1267936
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56432}
[modify] https://crrev.com/890fd9c89f877de1269026135a30e7d4d582ef4b/src/builtins/builtins-async-gen.cc
[add] https://crrev.com/890fd9c89f877de1269026135a30e7d4d582ef4b/test/mjsunit/regress/regress-892858.js

Status: Fixed (was: Started)
Project Member

Comment 6 by sheriffbot@chromium.org, Oct 8

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

Comment 7 by ClusterFuzz, Oct 9

ClusterFuzz has detected this issue as fixed in range 56431:56432.

Detailed report: https://clusterfuzz.com/testcase?key=4829822520655872

Fuzzer: ochang_js_fuzzer
Job Type: linux_asan_d8_v8_arm64_dbg
Platform Id: linux

Crash Type: Global-buffer-overflow READ 4
Crash Address: 0x7f40c3c0d8a3
Crash State:
  MemoryRead<unsigned
  v8::internal::Simulator::LoadStoreHelper
  v8::internal::Simulator::ExecuteInstruction
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_d8_v8_arm64_dbg&range=56413:56414
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_d8_v8_arm64_dbg&range=56431:56432

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4829822520655872

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 8 by ClusterFuzz, Oct 9

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 4829822520655872 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 9 by sheriffbot@chromium.org, Jan 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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