New issue
Advanced search Search tips

Issue 777209 link

Starred by 1 user

Issue metadata

Status: Verified
Owner: ----
Closed: Dec 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 3
Type: Bug



Sign in to add a comment

FormatBlock crashes with unusual HTML

Project Member Reported by ClusterFuzz, Oct 22 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5731521255440384

Fuzzer: miaubiz_css_fuzzer
Job Type: windows_syzyasan_chrome
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x0000000b
Crash State:
  blink::NodeTraversal::ChildAtTemplate<blink::Node const >
  blink::PositionIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >
  blink::PositionIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_chrome&range=454233:454289

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5731521255440384

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 22 2017

Components: Blink>DOM Blink>Editing
Labels: Test-Predator-AutoComponents
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, Oct 22 2017

Labels: Test-Predator-AutoOwner
Owner: yosin@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/2211504ac2b999a125b2215ce7f6be9e50878fea (Make PositionIterator to skip contents of INPUT/SELECT/TEXTAREA).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

Comment 3 by yosin@chromium.org, Oct 25 2017

Components: -Blink>Editing -Blink>DOM Blink>Editing>Command
Owner: ----
Status: Available (was: Assigned)
Summary: FormatBlock crashes with unusual HTML (was: Null-dereference in blink::NodeTraversal::ChildAtTemplate<blink::Node const >)
Lower to Pri-3 since real world usage of formatBlock command with unusual HTML is low.

Comment 4 by yosin@chromium.org, Oct 25 2017

Labels: -Pri-1 Pri-3
Labels: -Test-Predator-AutoComponents Test-Predator-Auto-Components
Labels: -Test-Predator-AutoOwner Test-Predator-Auto-Owner
Project Member

Comment 7 by ClusterFuzz, Dec 6 2017

ClusterFuzz has detected this issue as fixed in range 521421:521451.

Detailed report: https://clusterfuzz.com/testcase?key=5731521255440384

Fuzzer: miaubiz_css_fuzzer
Job Type: windows_asan_chrome
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x0000000b
Crash State:
  blink::NodeTraversal::ChildAtTemplate<blink::Node const >
  blink::PositionIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >
  blink::PositionIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=454233:454289
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=521421:521451

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5731521255440384

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 8 by ClusterFuzz, Dec 6 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 5731521255440384 is verified as fixed, so closing issue as verified.

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

Sign in to add a comment