[Webkit-unassigned] [Bug 210911] Nullptr crash in objc_msgSend under WebCore::genericFamily

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=210911

Anders Carlsson <andersca at apple.com> changed:

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                 CC|                            |andersca at apple.com

--- Comment #3 from Anders Carlsson <andersca at apple.com> ---
Comment on attachment 397335
  --> https://bugs.webkit.org/attachment.cgi?id=397335
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=397335&action=review

> Source/WebCore/platform/graphics/cocoa/SystemFontDatabaseCoreText.cpp:253
> +        auto value = adoptCF(CTFontDescriptorCopyAttribute(descriptor.get(), kCTFontFamilyNameAttribute));

Can use dynamic_cf_cast here.

https://trac.webkit.org/browser/webkit/trunk/Source/WTF/wtf/cf/TypeCastsCF.h

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