[Webkit-unassigned] [Bug 232512] Fix a null ptr deref by checking that newOffset is a valid key before adding to the HashMap.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=232512

--- Comment #3 from Alexey Proskuryakov <ap at webkit.org> ---
Comment on attachment 442873
  --> https://bugs.webkit.org/attachment.cgi?id=442873
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=442873&action=review

> Source/WebCore/ChangeLog:8
> +        No new tests (OOPS!).

Can a test be added for this?

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