Automatically applying components based on crash stacktrace and information from OWNERS files.

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

Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/1324be868df000cb2e070199ce2d10cd0c5a2706 (Make NextWordPosition() to utilize TextOffsetMapping).

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.

<select></select> creates anonymous LayoutBlockFlow with anonymous text

layer at (0,0) size 800x600
  LayoutBlockFlow {HTML} at (0,0) size 800x600
    LayoutBlockFlow {BODY} at (8,8) size 784x584
      LayoutText {#text} at (0,0) size 20x19
        text run at (0,0) width 20: "foo"
      LayoutMenuList {SELECT} at (20,0) size 22x20 [bgcolor=#FFFFFF] [border: (1px solid #A9A9A9)]
        LayoutBlockFlow (anonymous) at (1,1) size 20x18
          LayoutText (anonymous) at (4,1) size 4x16
            text run at (4,1) width 4: " "
      LayoutText {#text} at (42,0) size 20x19
        text run at (42,0) width 20: "bar"

ClusterFuzz has detected this issue as fixed in range 552626:552627.

Detailed report: https://clusterfuzz.com/testcase?key=4927582869651456

Fuzzer: bj_broddelwerk
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x00560000007d
Crash State:
  blink::LayoutObject::NextInPreOrder
  blink::TextOffsetMapping::TextOffsetMapping
  blink::TextOffsetMapping::TextOffsetMapping
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=550102:550107
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=552626:552627

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4927582869651456

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.

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