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Issue metadata

Status: Verified
Owner:
Last visit > 30 days ago
Closed: Jul 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Crash in segment

Project Member Reported by ClusterFuzz, Jul 19 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4652901201084416

Fuzzer: libfuzzer_skia_pathop_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x00009fff8005
Crash State:
  segment
  containsCoincidence
  SkOpSpan::insertCoincidence
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=405990:406128

Minimized Testcase (0.38 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96CZj4GJ2AanopduPJVmEmmN1RnBiy_4tFbN1fqGZa3xh_XrGzqNqUEaZqDosvVmGWu3BXgXJVsmKJlCf6uBzHZyXG2BUQJoRux11GyVk9-C9RgGZP1y7vA7SUAeZagUXPr3allTyCd368g5N4EeYi7FR-jdw?testcase_id=4652901201084416

Filer: mmoroz

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

Comment 1 by mmoroz@chromium.org, Jul 19 2016

Components: Internals>Skia
Labels: M-53 Pri-2
Owner: reed@chromium.org
Project Member

Comment 2 by sheriffbot@chromium.org, Jul 19 2016

Labels: Security_Impact-Head
Project Member

Comment 3 by sheriffbot@chromium.org, Jul 19 2016

Labels: ReleaseBlock-Beta
This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 4 by sheriffbot@chromium.org, Jul 19 2016

Labels: -Pri-2 Pri-1
Project Member

Comment 5 by sheriffbot@chromium.org, Jul 19 2016

Status: Assigned (was: Available)

Comment 6 by reed@chromium.org, Jul 19 2016

Cc: reed@google.com
Owner: caryclark@google.com

Comment 7 by gov...@chromium.org, Jul 19 2016

M53 beta launch is next week.Your bug is labelled as Beta ReleaseBlock, pls make sure to land the fix before 6:00 PM PST, Friday (07/22/16). Thank you.
Status: Started (was: Assigned)
Can't repro with my latest change. Once that lands, I'll verify that this is fixed.
Project Member

Comment 9 by ClusterFuzz, Jul 20 2016

ClusterFuzz has detected this issue as fixed in range 406291:406462.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4652901201084416

Fuzzer: libfuzzer_skia_pathop_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x00009fff8005
Crash State:
  segment
  containsCoincidence
  SkOpSpan::insertCoincidence
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=405990:406128
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=406291:406462

Minimized Testcase (0.38 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96CZj4GJ2AanopduPJVmEmmN1RnBiy_4tFbN1fqGZa3xh_XrGzqNqUEaZqDosvVmGWu3BXgXJVsmKJlCf6uBzHZyXG2BUQJoRux11GyVk9-C9RgGZP1y7vA7SUAeZagUXPr3allTyCd368g5N4EeYi7FR-jdw?testcase_id=4652901201084416

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.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 10 by ClusterFuzz, Jul 20 2016

ClusterFuzz has detected this issue as fixed in range 406291:406462.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4652901201084416

Fuzzer: libfuzzer_skia_pathop_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x00009fff8005
Crash State:
  segment
  containsCoincidence
  SkOpSpan::insertCoincidence
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=405990:406128
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=406291:406462

Minimized Testcase (0.38 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96CZj4GJ2AanopduPJVmEmmN1RnBiy_4tFbN1fqGZa3xh_XrGzqNqUEaZqDosvVmGWu3BXgXJVsmKJlCf6uBzHZyXG2BUQJoRux11GyVk9-C9RgGZP1y7vA7SUAeZagUXPr3allTyCd368g5N4EeYi7FR-jdw?testcase_id=4652901201084416

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.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 11 by ClusterFuzz, Jul 20 2016

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

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

Comment 12 by sheriffbot@chromium.org, Jul 20 2016

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Labels: -ReleaseBlock-Beta -ClusterFuzz -M-53 Clusterfuzz M-54
Project Member

Comment 14 by sheriffbot@chromium.org, Oct 26 2016

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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