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Issue 754661 link

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Issue metadata

Status: Duplicate
Merged: issue 753618
Owner: ----
Closed: Aug 2017
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Heap-buffer-overflow in SkGradientShaderBase::SkGradientShaderBase

Project Member Reported by ClusterFuzz, Aug 11 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5122188796755968

Fuzzer: afl_paint_op_buffer_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x60300000137c
Crash State:
  SkGradientShaderBase::SkGradientShaderBase
  SkTwoPointConicalGradient
  SkTwoPointConicalGradient::Create
  
Sanitizer: address (ASAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5122188796755968

Issue filed automatically.

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

Comment 1 by sheriffbot@chromium.org, Aug 11 2017

Labels: M-60
Project Member

Comment 2 by sheriffbot@chromium.org, Aug 11 2017

Labels: Pri-1

Comment 3 by kenrb@chromium.org, Aug 11 2017

Mergedinto: 753618
Status: Duplicate (was: Untriaged)
Project Member

Comment 4 by ClusterFuzz, Aug 12 2017

ClusterFuzz has detected this issue as fixed in range 493761:493826.

Detailed report: https://clusterfuzz.com/testcase?key=5122188796755968

Fuzzer: afl_paint_op_buffer_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x60300000137c
Crash State:
  SkGradientShaderBase::SkGradientShaderBase
  SkTwoPointConicalGradient
  SkTwoPointConicalGradient::Create
  
Sanitizer: address (ASAN)

Fixed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=493761:493826

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5122188796755968

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 5 by sheriffbot@chromium.org, Nov 19 2017

Labels: -Restrict-View-SecurityTeam 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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