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Issue 677628 link

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Issue metadata

Status: Verified
Owner:
Closed: Jan 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Data race in SkPixelRef::changeAlphaType

Project Member Reported by ClusterFuzz, Dec 30 2016

Issue description

Components: Blink>Image
Labels: M-57
Owner: fmalita@chromium.org
Status: Assigned (was: Untriaged)
Possible suspect from code search on the crashed file "ImageFrame.cpp".

Review URL: https://codereview.chromium.org/1820733004
fmalita@: Could you please take a look into this if its related to your change.
Project Member

Comment 2 by ClusterFuzz, Jan 19 2017

ClusterFuzz has detected this issue as fixed in range 444262:444293.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5621731676127232

Fuzzer: inferno_twister_custom_bundle
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 4
Crash Address: 0x7b28000250ac
Crash State:
  SkPixelRef::changeAlphaType
  SkBitmap::setAlphaType
  blink::ImageFrame::setStatus
  
Sanitizer: thread (TSAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=404886:404895
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=444262:444293

Unminimized Testcase: https://cluster-fuzz.appspot.com/download/AMIfv97lbSzpjEiSPgoicO0DZte4gu-KQCDLhTMTECUsprWdDN0tZfI8JRmdtU4FmyRTtIBbKqMC3hf8uJY-kBMsqjNcwOUVFQNCbH0BeMJuKgKbqVlLuxdhCpyma86-j7rcJFfIxBpE9OOKxQPmW3p-8YFdupyoGoTSlGYJi1b6tVWN8WP7UGFX5UL1GpkDHrh2GK3a3hmF5202itb1V3Ihf0syc1Gd2BDhBN92OBugNOezZMNS8bRcMQUZoe4FshncT8UttzKFASHaNYUhHiLuKHI45fYqhwGPBd1dK_0_eNv4WjmEWfUrsVdnc-tDAB--IoivruZjznGqgfwHVLxN1gfZABfEzTJq1_bC79_Ms0EtwCjNn2xdQwC6ApUNCGFvwKJds2I8pxsDx4RINmmkZS5SF5FPgw?testcase_id=5621731676127232


Additional requirements: Requires Gestures

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 3 by ClusterFuzz, Jan 19 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5621731676127232 is verified as fixed, so closing issue.

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

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