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Issue 919322 link

Starred by 2 users
Status: Duplicate
Owner:
futhark@chromium.org
Closed: Jan 7
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in blink::SliderThumbElement::SetPositionFromValue

Project Member Reported by ClusterFuzz, Jan 5 
Detailed report: https://clusterfuzz.com/testcase?key=5374477806075904

Fuzzer: ochang_domfuzzer
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  blink::SliderThumbElement::SetPositionFromValue
  blink::RangeInputType::UpdateView
  blink::RangeInputType::SanitizeValueInResponseToMinOrMaxAttributeChange
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=554016:554019

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5374477806075904

Issue filed automatically.

See https://www.chromium.org/developers/testing/memorysanitizer#TOC-Reproducing-ClusterFuzz-Bugs for instructions to reproduce this bug locally.
Project Member

Comment 1 by ClusterFuzz, Jan 5

Components: Blink>Forms
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, Jan 5

Labels: Test-Predator-Auto-Owner
Owner: futhark@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/9aa33c1d8d269d44490d2114736eb57eded120ab ([Squad] Propagate thumb appearance during style recalc.).

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.

Comment 3 by tkent@chromium.org, Jan 7

Mergedinto: 580734
Status: Duplicate (was: Assigned)
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