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Issue 837263 link

Starred by 1 user

Issue metadata

Status: WontFix
Owner:
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Abrt in base::subtle::PlatformSharedMemoryRegion::Create

Project Member Reported by ClusterFuzz, Apr 26 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5936481072578560

Fuzzer: afl_hit_test_manager_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x000000000001
Crash State:
  base::subtle::PlatformSharedMemoryRegion::Create
  base::subtle::PlatformSharedMemoryRegion::CreateWritable
  base::WritableSharedMemoryRegion::Create
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=552810:552819

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5936481072578560

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Project Member

Comment 1 by ClusterFuzz, Apr 26 2018

Components: Internals>Core
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, Apr 26 2018

Cc: riajiang@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file.

If this is incorrect, please add ClusterFuzz-Wrong label.
Project Member

Comment 3 by ClusterFuzz, Apr 26 2018

Labels: Test-Predator-Auto-Owner
Owner: roc...@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/062ff1a58f51a17787de42e29d176f13658ef63a (Move Mojo internals to new base shared memory API).

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.

Comment 4 by roc...@chromium.org, Apr 26 2018

The log makes me suspicious that it could be an infra problem rather than a problem with my CL. This looks like an assertion failure within straightforward shared memory allocation. +inferno@ for clusterfuzz insight.

Log:

[0426/082720.084652:ERROR:platform_shared_memory_region_posix.cc(208)] Creating shared memory in /dev/shm/.org.chromium.Chromium.L9X1RQ failed: No such file or directory (2)
[0426/082720.084859:ERROR:platform_shared_memory_region_posix.cc(211)] Unable to access(W_OK|X_OK) /dev/shm: No such file or directory (2)
[0426/082720.084971:FATAL:platform_shared_memory_region_posix.cc(213)] This is frequently caused by incorrect permissions on /dev/shm.  Try 'sudo chmod 1777 /dev/shm' to fix.

Cc: roc...@chromium.org
Owner: och...@chromium.org

Comment 6 by och...@chromium.org, Apr 27 2018

Status: Started (was: Assigned)
Project Member

Comment 7 by bugdroid1@chromium.org, Apr 27 2018

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/chrome/tools/clusterfuzz/+/ebd7ea940c2b85e97f2b7b52e14471ee1ee99fe2

commit ebd7ea940c2b85e97f2b7b52e14471ee1ee99fe2
Author: Oliver Chang <ochang@chromium.org>
Date: Fri Apr 27 05:40:29 2018

Project Member

Comment 8 by ClusterFuzz, Apr 27 2018

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 5936481072578560 appears to be flaky, updating reproducibility label.

Comment 9 by aarya@google.com, Apr 27 2018

Status: WontFix (was: Started)
A crash was reported against chromium 69.0.3497.100 in Ubuntu 18.10 with a similar stacktrace top, but I can't access the details on clusterfuzz so I cannot be sure this is the same issue. See https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1795153 for details, including a stacktrace which I'm attaching here.
Stacktrace.txt
2.8 KB View Download

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