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Issue metadata

Status: Available
Owner: ----
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug
Team-Accessibility



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Null-dereference READ in blink::AXMenuList::DidUpdateActiveOption

Project Member Reported by ClusterFuzz, Apr 11 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6420843811569664

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::AXMenuList::DidUpdateActiveOption
  blink::LayoutMenuList::UpdateFromElement
  blink::HTMLSelectElement::SelectOption
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=527199:527221

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6420843811569664

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Apr 11 2018

Components: Blink>Accessibility Blink>Layout
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.

Comment 2 by e...@chromium.org, Apr 12 2018

Labels: -Pri-1 Pri-3
Status: Available (was: Untriaged)
Project Member

Comment 3 by ClusterFuzz, May 16 2018

ClusterFuzz has detected this issue as fixed in range 558997:559001.

Detailed report: https://clusterfuzz.com/testcase?key=6420843811569664

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::AXMenuList::DidUpdateActiveOption
  blink::LayoutMenuList::UpdateFromElement
  blink::HTMLSelectElement::SelectOption
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=527199:527221
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=558997:559001

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6420843811569664

See https://github.com/google/clusterfuzz-tools 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 4 by ClusterFuzz, May 16 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 6420843811569664 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Status: Available (was: Verified)
Bulk edit: reopening CF issues likely closed incorrectly due to https://chromium.googlesource.com/chromium/src/+/cd3ebc4c69d7c01770f37f34aad623aa4ab2b128
Project Member

Comment 6 by ClusterFuzz, May 17 2018

ClusterFuzz has detected this issue as fixed in range 558660:558661.

Detailed report: https://clusterfuzz.com/testcase?key=6420843811569664

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::AXMenuList::DidUpdateActiveOption
  blink::LayoutMenuList::UpdateFromElement
  blink::HTMLSelectElement::SelectOption
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=527199:527221
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=558660:558661

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6420843811569664

See https://github.com/google/clusterfuzz-tools for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

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