[Webkit-unassigned] [Bug 176325] [iOS 10.3.2] Crash is observed while using voice detection from keyboard

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=176325

--- Comment #3 from Wenson Hsieh <wenson_hsieh at apple.com> ---
Symbolicated trace:

0   WebCore                         0x00000001974dc5e4 WebCore::DeleteSelectionCommand::saveTypingStyleState() + 40
1   WebCore                         0x00000001974e00ec WebCore::DeleteSelectionCommand::doApply() + 960
2   WebCore                         0x00000001974e00ec WebCore::DeleteSelectionCommand::doApply() + 960
3   WebCore                         0x00000001973b9cc4 WebCore::CompositeEditCommand::applyCommandToComposite(WTF::PassRefPtr<WebCore::EditCommand>) + 72
4   WebCore                         0x00000001973bcd10 WebCore::CompositeEditCommand::deleteSelection(bool, bool, bool, bool, bool) + 156
5   WebCore                         0x00000001980ef45c WebCore::TypingCommand::deleteSelection(bool) + 96
6   WebCore                         0x00000001973b96a4 WebCore::CompositeEditCommand::apply() + 292
7   WebCore                         0x00000001980ef39c WebCore::TypingCommand::deleteSelection(WebCore::Document&, unsigned int, WebCore::TypingCommand::TextCompositionType) + 276
8   WebCore                         0x0000000197560764 WebCore::Editor::setComposition(WTF::String const&, WTF::Vector<WebCore::CompositionUnderline, 0ul, WTF::CrashOnOverflow, 16ul> const&, unsigned int, unsigned int) + 932
9   WebKitLegacy                    0x000000019844a9e4 -[WebFrame(WebPrivate) setMarkedText:selectedRange:] + 136


There's a good chance this is addressed by <https://trac.webkit.org/r221128>.

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