[Webkit-unassigned] [Bug 146885] New: [GTK][Stable] Crash when spell checker returns no guesses

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=146885

            Bug ID: 146885
           Summary: [GTK][Stable] Crash when spell checker returns no
                    guesses
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com

This was fixed in master by r186653 but that commit probably won't fix 2.8, since the backtrace there is quite different:

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 size at /usr/src/debug/webkitgtk-2.8.3/Source/WTF/wtf/Vector.h:651
 #2 WebKit::WebTextCheckerClient::guessesForWord at /usr/src/debug/webkitgtk-2.8.3/Source/WebKit2/UIProcess/WebTextCheckerClient.cpp:160
 #3 WebKit::TextChecker::getGuessesForWord at /usr/src/debug/webkitgtk-2.8.3/Source/WebKit2/UIProcess/gtk/TextCheckerGtk.cpp:128
 #4 WebKit::WebPageProxy::getGuessesForWord at /usr/src/debug/webkitgtk-2.8.3/Source/WebKit2/UIProcess/WebPageProxy.cpp:4255
 #5 callMemberFunctionImpl<WebKit::WebPageProxy, void (WebKit::WebPageProxy::*)(WTF::String const&, WTF::String const&, WTF::Vector<WTF::String>&), std::tuple<WTF::String, WTF::String>, 0ul, 1ul, std::tuple<WTF::Vector<WTF::String, 0ul, WTF::CrashOnOverflow> >, 0ul> at /usr/src/debug/webkitgtk-2.8.3/Source/WebKit2/Platform/IPC/HandleMessage.h:30
 #6 callMemberFunction<WebKit::WebPageProxy, void (WebKit::WebPageProxy::*)(WTF::String const&, WTF::String const&, WTF::Vector<WTF::String>&), std::tuple<WTF::String, WTF::String>, std::make_index_sequence<2ul>, std::tuple<WTF::Vector<WTF::String, 0ul, WTF::CrashOnOverflow> >, std::make_index_sequence<1ul> > at /usr/src/debug/webkitgtk-2.8.3/Source/WebKit2/Platform/IPC/HandleMessage.h:36
 #7 handleMessage<Messages::WebPageProxy::GetGuessesForWord, WebKit::WebPageProxy, void (WebKit::WebPageProxy::*)(WTF::String const&, WTF::String const&, WTF::Vector<WTF::String>&)> at /usr/src/debug/webkitgtk-2.8.3/Source/WebKit2/Platform/IPC/HandleMessage.h:105
 #8 WebKit::WebPageProxy::didReceiveSyncMessage at /usr/src/debug/webkitgtk-2.8.3/x86_64-redhat-linux-gnu/DerivedSources/WebKit2/WebPageProxyMessageReceiver.cpp:1283
 #9 IPC::MessageReceiverMap::dispatchSyncMessage at /usr/src/debug/webkitgtk-2.8.3/Source/WebKit2/Platform/IPC/MessageReceiverMap.cpp:104
 #10 WebKit::ChildProcessProxy::dispatchSyncMessage at /usr/src/debug/webkitgtk-2.8.3/Source/WebKit2/Shared/ChildProcessProxy.cpp:129

Full backtrace downstream.

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