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Issue metadata

Status: Verified
Owner:
Closed: Jan 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Use-of-uninitialized-value in cc::PaintOpReader::Read

Project Member Reported by ClusterFuzz, Jan 9 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6668796491464704

Fuzzer: libFuzzer_paint_op_buffer_eq_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  cc::PaintOpReader::Read
  cc::DrawImageOp::Deserialize
  cc::PaintOp::Deserialize
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=527093:527111

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6668796491464704

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jan 9 2018

Labels: Test-Predator-Auto-Owner
Owner: ericrk@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/8b8436915204fb6de906de699e125123bf9b4b94 (OOP: Image Support).

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

Comment 2 by ClusterFuzz, Jan 9 2018

Components: Internals>Compositing
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 3 by ClusterFuzz, Jan 9 2018

ClusterFuzz has detected this issue as fixed in range 527681:527694.

Detailed report: https://clusterfuzz.com/testcase?key=6668796491464704

Fuzzer: libFuzzer_paint_op_buffer_eq_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  cc::PaintOpReader::Read
  cc::DrawImageOp::Deserialize
  cc::PaintOp::Deserialize
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=527093:527111
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=527681:527694

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6668796491464704

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 4 by ClusterFuzz, Jan 9 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6668796491464704 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 5 by sheriffbot@chromium.org, Jan 9 2018

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Project Member

Comment 6 by sheriffbot@chromium.org, Apr 17 2018

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
Project Member

Comment 7 by sheriffbot@chromium.org, Jul 28

Labels: Pri-1

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