[Webkit-unassigned] [Bug 165280] New: Rare crash when preparing to print

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=165280

            Bug ID: 165280
           Summary: Rare crash when preparing to print
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bfulgham at webkit.org

Crash trace statistics indicate a certain amount of nullptr dereferencing during some print operations. Inspecting the code revealed a number of places where the FrameView pointer was accessed without null checking, even though we null check this value everywhere else in the Frame class.

This patch adds additional checks to this code to try to reduce the cases where users encounter this problem.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.webkit.org/pipermail/webkit-unassigned/attachments/20161201/11e45eac/attachment-0001.html>