This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

ClusterFuzz is analyzing your testcase. Developers can follow the progress at https://cluster-fuzz.appspot.com/testcase?key=5435657110683648

ClusterFuzz is analyzing your testcase. Developers can follow the progress at https://cluster-fuzz.appspot.com/testcase?key=6645803740561408

Detailed report: https://clusterfuzz.com/testcase?key=6645803740561408

Job Type: linux_asan_content_shell_drt
Crash Type: Heap-use-after-free READ 8
Crash Address: 0x61100035f660
Crash State:
  blink::LayoutText::SetText
  blink::LayoutTextFragment::SetTextFragment
  blink::FirstLetterPseudoElement::DetachLayoutTree
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=474149:474177

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6645803740561408


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

The recommended severity is different from what was assigned to the bug. Please double check the accuracy of the assigned severity.

Actually a use-after-free. Updating severity.

ClusterFuzz has detected this issue as fixed in range 477959:477971.

Detailed report: https://clusterfuzz.com/testcase?key=5075256523096064

Fuzzer: inferno_twister
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  blink::LayoutText::SetText
  blink::LayoutTextFragment::SetTextFragment
  blink::FirstLetterPseudoElement::DetachLayoutTree
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=474583:474657
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=477959:477971

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5075256523096064


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

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

Closing per comment #13.

ClusterFuzz testcase 6645803740561408 is still reproducing on tip-of-tree build (trunk).

If this testcase was not reproducible locally or unworkable, ignore this notification and we will file another bug soon with hopefully a better and workable testcase.

Otherwise, if this is not intended to be fixed (e.g. this is an intentional crash), please add ClusterFuzz-Ignore label to prevent future bug filing with similar crash stacktrace.

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