[Webkit-unassigned] [Bug 243500] Test case crashes Safari Tab

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=243500

Simon Fraser (smfr) <simon.fraser at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |webkit-bug-importer at group.a
                   |                            |pple.com

--- Comment #1 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
Reproduces. Crash I a null de-ref here:

Thread 0 Crashed::  Dispatch queue: com.apple.main-thread
0   WebCore                                    0x484558f40 WTF::HashTable<WTF::AtomString, WTF::AtomString, WTF::IdentityExtractor, WTF::DefaultHash<WTF::AtomString>, WTF::HashTraits<WTF::AtomString>, WTF::HashTraits<WTF::AtomString> >::add(WTF::AtomString const&) + 48
1   WebCore                                    0x4851095cf WebCore::FontCache::createFontPlatformData(WebCore::FontDescription const&, WTF::AtomString const&, WebCore::FontCreationContext const&) + 863
2   WebCore                                    0x485055319 WebCore::FontCache::cachedFontPlatformData(WebCore::FontDescription const&, WTF::String const&, WebCore::FontCreationContext const&, bool) + 825
3   WebCore                                    0x4846d3eaa WebCore::CSSFontFaceSource::load(WebCore::Document*) + 1082
4   WebCore                                    0x4846d33e3 WebCore::CSSFontFace::pump(WebCore::ExternalResourceDownloadPolicy) + 339
5   WebCore                                    0x4846d4521 WebCore::CSSFontFace::font(WebCore::FontDescription const&, bool, bool, WebCore::ExternalResourceDownloadPolicy, WebCore::FontPaletteValues const&) + 129
6   WebCore                                    0x48470df04 WebCore::CSSFontAccessor::font(WebCore::ExternalResourceDownloadPolicy) const + 84
7   WebCore                                    0x48470d8c1 WebCore::CSSSegmentedFontFace::fontRanges(WebCore::FontDescription const&, WebCore::FontPaletteValues const&) + 2353
8   WebCore                                    0x4846e07da WebCore::CSSFontSelector::fontRangesForFamily(WebCore::FontDescription const&, WTF::AtomString const&) + 1018
9   WebCore                                    0x48506395b decltype(auto) std::__1::__variant_detail::__visitation::__base::__dispatcher<0ul>::__dispatch<std::__1::__variant_detail::__visitation::__variant::__value_visitor<WTF::Visitor<WebCore::realizeNextFallback(WebCore::FontCascadeDescription const&, unsigned int&, WebCore::FontSelector*)::$_7, WebCore::realizeNextFallback(WebCore::FontCascadeDescription const&, unsigned int&, WebCore::FontSelector*)::$_8>&>&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, WTF::AtomString, WebCore::FontFamilySpecificationCoreText> const&>(std::__1::__variant_detail::__visitation::__variant::__value_visitor<WTF::Visitor<WebCore::realizeNextFallback(WebCore::FontCascadeDescription const&, unsigned int&, WebCore::FontSelector*)::$_7, WebCore::realizeNextFallback(WebCore::FontCascadeDescription const&, unsigned int&, WebCore::FontSelector*)::$_8>&>&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, WTF::AtomString, WebCore::FontFamilySpecificationCoreText> const&) + 75

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