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Issue 825252 link

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Issue metadata

Status: Duplicate
Merged: issue 825545
Owner:
Closed: Mar 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Use-of-uninitialized-value in sw::Surface::Buffer::write

Project Member Reported by ClusterFuzz, Mar 23 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6200715673075712

Fuzzer: libFuzzer_gpu_swiftshader_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  sw::Surface::Buffer::write
  sw::Surface::Buffer::write
  sw::Surface::copyInternal
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=529740:529750

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6200715673075712

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 23 2018

Components: Internals>GPU>SwiftShader
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.

Comment 2 by cthomp@chromium.org, Mar 23 2018

Owner: capn@chromium.org
Assigning to capn@ based on suspected regression CLs (clusterfuzz wasn't very precise but they were all attributed to capn@).

Comment 3 by cthomp@chromium.org, Mar 23 2018

Cc: capn@google.com
Status: Assigned (was: Untriaged)
Project Member

Comment 4 by sheriffbot@chromium.org, Mar 24 2018

Labels: M-66
Project Member

Comment 5 by sheriffbot@chromium.org, Mar 24 2018

Labels: Pri-1
Project Member

Comment 6 by ClusterFuzz, Mar 30 2018

ClusterFuzz has detected this issue as fixed in range 546924:546952.

Detailed report: https://clusterfuzz.com/testcase?key=6200715673075712

Fuzzer: libFuzzer_gpu_swiftshader_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  sw::Surface::Buffer::write
  sw::Surface::Buffer::write
  sw::Surface::copyInternal
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=529740:529750
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=546924:546952

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6200715673075712

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, Mar 30 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6200715673075712 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 8 by sheriffbot@chromium.org, Mar 31 2018

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify

Comment 9 by capn@chromium.org, Apr 4 2018

Mergedinto: 825545
Status: Duplicate (was: Verified)
Was also fixed by https://swiftshader-review.googlesource.com/18128
Project Member

Comment 10 by sheriffbot@chromium.org, Jul 7

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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