[Webkit-unassigned] [Bug 140261] Null ptr crash in WebCore::LogicalSelectionOffsetCaches::ContainingBlockInfo::setBlock

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=140261

Hyungwook Lee <hyungwook.lee at navercorp.com> changed:

           What    |Removed                     |Added
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 Attachment #246320|0                           |1
        is obsolete|                            |
 Attachment #246514|                            |review?
              Flags|                            |

--- Comment #18 from Hyungwook Lee <hyungwook.lee at navercorp.com> ---
Created attachment 246514
  --> https://bugs.webkit.org/attachment.cgi?id=246514&action=review
patch

Yes, There is no <textarea>'s containing block anymore that caused by already detached from the renderer tree.
I made the patch that makes check its containing block before using it.

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