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Issue 716954 link

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Issue metadata

Status: Verified
Owner: ----
Closed: May 2017
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Use-of-uninitialized-value in approx_log2

Project Member Reported by ClusterFuzz, May 1 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6635953719607296

Fuzzer: libfuzzer_skia_color_space_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  approx_log2
  approx_powf
  parametric
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=468252:468253

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6635953719607296


Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 1 2017

ClusterFuzz has detected this issue as fixed in range 468253:468257.

Detailed report: https://clusterfuzz.com/testcase?key=6635953719607296

Fuzzer: libfuzzer_skia_color_space_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  approx_log2
  approx_powf
  parametric
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=468252:468253
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=468253:468257

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6635953719607296


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 2 by ClusterFuzz, May 1 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6635953719607296 is verified as fixed, so closing issue.

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

Comment 3 by sheriffbot@chromium.org, May 1 2017

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

Comment 4 by sheriffbot@chromium.org, Aug 7 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 5 by sheriffbot@chromium.org, Jul 28

Labels: Pri-1

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