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Issue 752496 link

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Issue metadata

Status: Verified
Owner:
Last visit > 30 days ago
Closed: Aug 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Heap-buffer-overflow in GrTextUtils::DrawPosTextAsPath

Project Member Reported by ClusterFuzz, Aug 4 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6149238655549440

Fuzzer: afl_paint_op_buffer_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x6140000003f8
Crash State:
  GrTextUtils::DrawPosTextAsPath
  GrAtlasTextContext::drawPosText
  GrRenderTargetContext::drawPosText
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=491156:491274

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6149238655549440


Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Components: Internals>Skia
Owner: jvanverth@chromium.org
Status: Assigned (was: Untriaged)
Is this somehow different than  Issue 750420 ?
Project Member

Comment 2 by ClusterFuzz, Aug 5 2017

ClusterFuzz has detected this issue as fixed in range 491876:491976.

Detailed report: https://clusterfuzz.com/testcase?key=6149238655549440

Fuzzer: afl_paint_op_buffer_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x6140000003f8
Crash State:
  GrTextUtils::DrawPosTextAsPath
  GrAtlasTextContext::drawPosText
  GrRenderTargetContext::drawPosText
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=491156:491274
Fixed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=491876:491976

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6149238655549440


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 5 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6149238655549440 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 4 by sheriffbot@chromium.org, Aug 5 2017

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

Comment 5 by sheriffbot@chromium.org, Nov 11 2017

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 6 by sheriffbot@chromium.org, Jul 28

Labels: Pri-1

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