[Webkit-unassigned] [Bug 160362] New: NULL Reference Error in ElementRuleCollector
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Jul 29 16:02:50 PDT 2016
https://bugs.webkit.org/show_bug.cgi?id=160362
Bug ID: 160362
Summary: NULL Reference Error in ElementRuleCollector
Classification: Unclassified
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: CSS
Assignee: webkit-unassigned at lists.webkit.org
Reporter: jbedard at apple.com
The ElementRuleCollector class defines m_authorStyle as a reference. However, in some cases, this reference is instantiated by a pointer from DocumentRuleSets, and this pointer is occasionally NULL. This is clearly undefined behavior, although surprisingly, many of the tests which exhibit this (canvas/philip/tests/2d.strokeRect.path.html, for example) still pass.
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