tree 25daf2961e3f6010c20f2a74174021c2f005a023
parent 8bbcd4cddea07385b6f6e230aa08b5aa4ecade50
author bfulgham@apple.com <bfulgham@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1558109016 +0000
committer bfulgham@apple.com <bfulgham@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1558109016 +0000

Hardening: Prevent FrameLoader crash due to SetForScope
https://bugs.webkit.org/show_bug.cgi?id=197458
<rdar://problem/50368338>

Reviewed by Chris Dumez.

Since SetForScope takes action during a function returns, it might cause
a crash if its scope is broader than the value it is resetting.

* loader/FrameLoader.cpp:
(WebCore::FrameLoader::loadDifferentDocumentItem):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@245464 268f45cc-cd09-0410-ab3c-d52691b4dbfc