[Webkit-unassigned] [Bug 249119] New: Web Inspector: Use-after-scope in lambda in WebCore::isValidRuleHeaderText()
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sun Dec 11 20:20:59 PST 2022
https://bugs.webkit.org/show_bug.cgi?id=249119
Bug ID: 249119
Summary: Web Inspector: Use-after-scope in lambda in
WebCore::isValidRuleHeaderText()
Product: WebKit
Version: WebKit Nightly Build
Hardware: All
OS: All
Status: NEW
Keywords: InRadar
Severity: Normal
Priority: P2
Component: Web Inspector
Assignee: webkit-unassigned at lists.webkit.org
Reporter: ddkilzer at webkit.org
CC: inspector-bugzilla-changes at group.apple.com,
pangle at apple.com
Web Inspector: Use-after-scope in lambda in WebCore::isValidRuleHeaderText().
Currently, `CSSParserImpl` holds a reference to the `CSSParserContext` argument, so the context must outlive the parser.
However, in this code the context is a temporary stack variable which is destroyed after this statement, though the parser holds a reference to it.
```
CSSParserImpl parser(parserContextForDocument(document), atRuleIdentifier + ' ' + headerText + " {}");
```
<rdar://102887283>
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