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Issue 835418 link

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Issue metadata

Status: Verified
Owner:
Closed: Apr 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 1
Type: Bug



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Timeout in paint_op_buffer_eq_fuzzer

Project Member Reported by ClusterFuzz, Apr 20 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5878567213465600

Fuzzer: libFuzzer_paint_op_buffer_eq_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Timeout (exceeds 25 secs)
Crash Address: 
Crash State:
  paint_op_buffer_eq_fuzzer
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=520961:520991

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5878567213465600

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 20 2018

Components: Internals>Skia
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 20 2018

Labels: Test-Predator-Auto-Owner
Owner: enne@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/959ead4baa2fe7b4367dedc234b1d3306cae0541 (oop : Only adjust serialization alignment when needed).

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 3 by ClusterFuzz, Apr 22 2018

Labels: OS-Mac
Project Member

Comment 4 by bugdroid1@chromium.org, Apr 25 2018

The following revision refers to this bug:
  https://skia.googlesource.com/skia/+/77e95f7067e3bbb4234965c8413f6f86e345bca6

commit 77e95f7067e3bbb4234965c8413f6f86e345bca6
Author: Adrienne Walker <enne@chromium.org>
Date: Wed Apr 25 13:23:36 2018

Fix SkDashImpl::CreateProc OOM on garbage input

Verify that there's enough data to read from before allocating gigantic
blocks of memory.  This was caught by a fuzzer.

Bug:  chromium:835418 
Change-Id: I43fb1d11ec13726aacb62fe6aeb9f137424fb783
Reviewed-on: https://skia-review.googlesource.com/123538
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: Adrienne Walker <enne@chromium.org>
Reviewed-by: Mike Klein <mtklein@google.com>

[modify] https://crrev.com/77e95f7067e3bbb4234965c8413f6f86e345bca6/src/effects/SkDashPathEffect.cpp

Project Member

Comment 5 by bugdroid1@chromium.org, Apr 25 2018

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ab3440a6dbad9b0d0af95027bdcaceadb119f395

commit ab3440a6dbad9b0d0af95027bdcaceadb119f395
Author: skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Date: Wed Apr 25 15:17:06 2018

Roll src/third_party/skia/ e1c37a7b8..77e95f706 (2 commits)

https://skia.googlesource.com/skia.git/+log/e1c37a7b8f21..77e95f7067e3

$ git log e1c37a7b8..77e95f706 --date=short --no-merges --format='%ad %ae %s'
2018-04-24 enne Fix SkDashImpl::CreateProc OOM on garbage input
2018-04-25 kjlubick Migrate NUC7i5BNK to Debian 9

Created with:
  roll-dep src/third_party/skia
BUG= chromium:835418 


The AutoRoll server is located here: https://autoroll.skia.org

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
TBR=stani@chromium.org

Change-Id: I25c051ac40ebbcf464beffe40852de8ccafcbd66
Reviewed-on: https://chromium-review.googlesource.com/1027994
Reviewed-by: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#553556}
[modify] https://crrev.com/ab3440a6dbad9b0d0af95027bdcaceadb119f395/DEPS

Project Member

Comment 6 by ClusterFuzz, Apr 26 2018

ClusterFuzz has detected this issue as fixed in range 553546:553560.

Detailed report: https://clusterfuzz.com/testcase?key=5878567213465600

Fuzzer: libFuzzer_paint_op_buffer_eq_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Timeout (exceeds 25 secs)
Crash Address: 
Crash State:
  paint_op_buffer_eq_fuzzer
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=520961:520991
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=553546:553560

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5878567213465600

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md 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 7 by ClusterFuzz, Apr 26 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5878567213465600 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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