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Issue metadata

Status: Verified
Owner:
Email to this user bounced
Closed: Aug 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Crash in backward_insert_edge_based_on_x

Project Member Reported by ClusterFuzz, Aug 17 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4615855352840192

Fuzzer: libfuzzer_skia_path_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000010
Crash State:
  backward_insert_edge_based_on_x
  walk_edges
  sk_fill_path
  

Minimized Testcase (0.08 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96FxqaFyO4yN8CPqtsWX7-9XUqAbwQyew1xC-DZloxeJSJ82BtUtt_EahVi8uApTsYYQAXH72PW4WPZj2CG6Qd2ACvPElMaBA0x3sPRF9wkSBEPhf9xNIU6jMM-DmVNPhzp3zCXQqQn3fIrqmVC9Q1rwwe2Lw?testcase_id=4615855352840192

Issue manually filed by: mummareddy

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Components: Internals>Skia
Labels: findit-wrong Te-Logged M-53
Owner: reed@chromium.org
Status: Assigned (was: Untriaged)
From findit tool:

Author: reed
Project: chromium-skia
Changelist: https://chromium.googlesource.com/skia.git/+/82595b6fa4733e1525f357bdcac22db058790550
Time: Tue May 10 00:48:46 2016
The CL last changed line 1100 of file SkDraw.cpp, which is stack frame 5.

Author: reed
Project: chromium-skia
Changelist: https://chromium.googlesource.com/skia.git/+/82595b6fa4733e1525f357bdcac22db058790550
Time: Tue May 10 00:48:46 2016
The CL last changed line 1193 of file SkDraw.cpp, which is stack frame 6.

Suspected Project: chromium-skia
Suspected Component: Internals>Skia
Project Member

Comment 2 by ClusterFuzz, Aug 25 2016

ClusterFuzz has detected this issue as fixed in range 414042:414068.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4615855352840192

Fuzzer: libfuzzer_skia_path_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000010
Crash State:
  backward_insert_edge_based_on_x
  walk_edges
  sk_fill_path
  
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=414042:414068

Minimized Testcase (0.08 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96FxqaFyO4yN8CPqtsWX7-9XUqAbwQyew1xC-DZloxeJSJ82BtUtt_EahVi8uApTsYYQAXH72PW4WPZj2CG6Qd2ACvPElMaBA0x3sPRF9wkSBEPhf9xNIU6jMM-DmVNPhzp3zCXQqQn3fIrqmVC9Q1rwwe2Lw?testcase_id=4615855352840192

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 3 by ClusterFuzz, Aug 25 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.
Project Member

Comment 4 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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