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Issue 856533 link

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Issue metadata

Status: Verified
Owner:
Closed: Jun 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Undefined-shift in FcCharSetHasChar

Project Member Reported by ClusterFuzz, Jun 26 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6380794428522496

Fuzzer: libFuzzer_renderer_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  FcCharSetHasChar
  gfx::CachedFont::HasGlyphForCharacter
  gfx::CachedFontSet::GetFallbackFontForChar
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=525942:525946

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6380794428522496

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jun 26 2018

Components: UI>GFX
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 2 by ClusterFuzz, Jun 26 2018

Cc: aizatsky@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Project Member

Comment 3 by ClusterFuzz, Jun 26 2018

Labels: Test-Predator-Auto-Owner
Owner: yhirano@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/56ddd0320acc76ba78ff650852b77a8ff8981617 ([mojo-loading] Remove ChromeIPC code).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Project Member

Comment 4 by ClusterFuzz, Jun 26 2018

ClusterFuzz has detected this issue as fixed in range 570208:570210.

Detailed report: https://clusterfuzz.com/testcase?key=6380794428522496

Fuzzer: libFuzzer_renderer_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  FcCharSetHasChar
  gfx::CachedFont::HasGlyphForCharacter
  gfx::CachedFontSet::GetFallbackFontForChar
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=525942:525946
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=570208:570210

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6380794428522496

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.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 ClusterFuzz, Jun 26 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6380794428522496 is verified as fixed, so closing issue as verified.

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

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