Detailed report: https://clusterfuzz.com/testcase?key=4544583173406720

Fuzzer: dstockwell-css-fuzzer
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000034
Crash State:
  blink::RootInlineBox::AscentAndDescentForBox
  blink::InlineFlowBox::ComputeLogicalBoxHeights
  blink::InlineFlowBox::ComputeLogicalBoxHeights
  
Sanitizer: address (ASAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4544583173406720

Note: This crash might not be reproducible with the provided testcase. That said, for the past 14 days we've been seeing this crash frequently. If you are unable to reproduce this, please try a speculative fix based on the crash stacktrace in the report. The fix can be verified by looking at the crash statistics in the report, a day after the fix is deployed. If the fix resolved the issue, please close the bug by marking as Fixed.

Issue filed automatically.

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