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Issue metadata

Status: Verified
Owner:
Closed: Jul 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Regression



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Crash in SkTSect<SkDCubic, SkDConic>::binarySearchCoin

Project Member Reported by ClusterFuzz, Jul 8 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5127167562481664

Fuzzer: afl_skia_pathop_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x0000000000b0
Crash State:
  SkTSect<SkDCubic, SkDConic>::binarySearchCoin
  SkTSect<SkDCubic, SkDConic>::extractCoincident
  SkTSect<SkDCubic, SkDConic>::BinarySearch
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=402185:402404

Minimized Testcase (0.05 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97GZFZVxGzy3JAeNSlzi4qYAXhYlusmmVKyvpNhtnkWnTQWQacMkcNyDEo4LDxMnhMUuCuoBrL_M2VKl_ZBZW8Q15PObqE-5TiOv_VF7XJ2XgSYdQqX_1l0sxbUwsTfiLgKQ21yCfT9QprGtqmgdBSJa6Fdqw?testcase_id=5127167562481664

Filer: ssamanoori

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Cc: ssamanoori@chromium.org
Components: Tools>Test>FindIt>NoResult
Labels: -Type-Bug Te-Logged M-53 Type-Bug-Regression
Owner: mbarbe...@chromium.org
Status: Assigned (was: Available)
Through code search on file 'skia_pathop_fuzzer.cc' suspecting the below
https://chromium.googlesource.com/chromium/src/+/d39a8d816bab5d9c7b572c1ef9e6a53224e0b0c9%5E%21/testing/libfuzzer/fuzzers/skia_pathop_fuzzer.cc

mbarbella@Could you please look into this issue if its related to your change,else please re assign it to an appropriate dev person.

Thanks,
Project Member

Comment 2 by sheriffbot@chromium.org, Jul 8 2016

Labels: -M-53 M-54 MovedFrom-53
Moving this nonessential bug to the next milestone.

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

Comment 3 by ClusterFuzz, Jul 8 2016

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4703155304792064

Fuzzer: afl_skia_pathop_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000078
Crash State:
  SkTSect<SkDCubic, SkDConic>::extractCoincident
  SkTSect<SkDCubic, SkDConic>::BinarySearch
  SkIntersections::intersect
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=402185:402404

Minimized Testcase (0.06 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96VqJJZq-QL9UNqQkNz8knVpZJZ31XqbJDFap0PpXYmK7cPZWitE0eVWgsm2w4tYMmMFwp4HlIe9i93_8snhL1va1qGPnJd8R7XMfAolT0Zp6sUV22XPDQ4ISDKxstSw_wlEOWKUJ1Fdy1Rb7P_9MmvzfOqXA?testcase_id=4703155304792064

Filer: mummareddy

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
Project Member

Comment 4 by ClusterFuzz, Jul 26 2016

ClusterFuzz has detected this issue as fixed in range 406032:406205.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4703155304792064

Fuzzer: afl_skia_pathop_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000078
Crash State:
  SkTSect<SkDCubic, SkDConic>::extractCoincident
  SkTSect<SkDCubic, SkDConic>::BinarySearch
  SkIntersections::intersect
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=402185:402404
Fixed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=406032:406205

Minimized Testcase (0.06 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96VqJJZq-QL9UNqQkNz8knVpZJZ31XqbJDFap0PpXYmK7cPZWitE0eVWgsm2w4tYMmMFwp4HlIe9i93_8snhL1va1qGPnJd8R7XMfAolT0Zp6sUV22XPDQ4ISDKxstSw_wlEOWKUJ1Fdy1Rb7P_9MmvzfOqXA?testcase_id=4703155304792064

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 5 by ClusterFuzz, Jul 29 2016

ClusterFuzz has detected this issue as fixed in range 406032:406205.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5127167562481664

Fuzzer: afl_skia_pathop_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x0000000000b0
Crash State:
  SkTSect<SkDCubic, SkDConic>::binarySearchCoin
  SkTSect<SkDCubic, SkDConic>::extractCoincident
  SkTSect<SkDCubic, SkDConic>::BinarySearch
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=402185:402404
Fixed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=406032:406205

Minimized Testcase (0.05 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97GZFZVxGzy3JAeNSlzi4qYAXhYlusmmVKyvpNhtnkWnTQWQacMkcNyDEo4LDxMnhMUuCuoBrL_M2VKl_ZBZW8Q15PObqE-5TiOv_VF7XJ2XgSYdQqX_1l0sxbUwsTfiLgKQ21yCfT9QprGtqmgdBSJa6Fdqw?testcase_id=5127167562481664

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 6 by ClusterFuzz, Jul 29 2016

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

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Components: -Tools>Test>FindIt>NoResult
Project Member

Comment 8 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

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

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