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Issue 792859 link

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Issue metadata

Status: Verified
Owner:
Closed: Dec 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Abrt in sk_abort_no_print

Project Member Reported by ClusterFuzz, Dec 7 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5334787853385728

Fuzzer: libFuzzer_paint_op_buffer_eq_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x03e9000019aa
Crash State:
  sk_abort_no_print
  SkReader32::setMemory
  SkReader32::setMemory
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=522280:522310

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5334787853385728

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 7 2017

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, Dec 7 2017

Labels: Test-Predator-Auto-Owner
Owner: reed@google.com
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://skia.googlesource.com/skia/+/fadbfcd4aba676d44dfb08de1a83143a1c63b95c (upgrade SkReadBuffer to always validate).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.
Project Member

Comment 3 by bugdroid1@chromium.org, Dec 8 2017

The following revision refers to this bug:
  https://skia.googlesource.com/skia/+/34e368af276dc9931c46afc3cde23d20728fc882

commit 34e368af276dc9931c46afc3cde23d20728fc882
Author: Mike Reed <reed@google.com>
Date: Fri Dec 08 17:22:00 2017

enforce 4-byte alignment and length for buffers

Bug:792859
Change-Id: Ib4cde1015429153709956d4ffc2d4321decb79b0
Reviewed-on: https://skia-review.googlesource.com/82160
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>

[modify] https://crrev.com/34e368af276dc9931c46afc3cde23d20728fc882/src/core/SkReadBuffer.cpp
[modify] https://crrev.com/34e368af276dc9931c46afc3cde23d20728fc882/src/core/SkReadBuffer.h

Project Member

Comment 4 by ClusterFuzz, Dec 9 2017

ClusterFuzz has detected this issue as fixed in range 522897:522920.

Detailed report: https://clusterfuzz.com/testcase?key=5334787853385728

Fuzzer: libFuzzer_paint_op_buffer_eq_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x03e9000019aa
Crash State:
  sk_abort_no_print
  SkReader32::setMemory
  SkReader32::setMemory
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=522280:522310
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=522897:522920

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5334787853385728

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 5 by ClusterFuzz, Dec 9 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5334787853385728 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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