[Webkit-unassigned] [Bug 43306] New: Crash due to calling StringImpl::createCFString() from non-main thread in plug-in code

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=43306

           Summary: Crash due to calling StringImpl::createCFString() from
                    non-main thread in plug-in code
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: sam at webkit.org


Crash due to calling StringImpl::createCFString() from non-main thread in plug-in code.


Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000bbadbeef
Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore          0x00000001004aabfe WTF::isMainThread() + 147 (MainThreadMac.mm:136)
1   com.apple.WebCore                 0x00000001015d64a0 WebCore::StringImpl::createCFString() + 28 (StringImplCF.cpp:136)
2   com.apple.WebCore                 0x00000001015d67d1 WebCore::StringImpl::operator NSString*() + 21 (StringImplMac.mm:30)
3   com.apple.WebCore                 0x0000000100ae203d WebCore::String::operator NSString*() const + 55 (WTFString.h:264)
4   com.apple.WebCore                 0x000000010136f6ae WebCore::MIMETypeRegistry::getMIMETypeForExtension(WebCore::String const&) + 42 (MIMETypeRegistryMac.mm:37)
5   com.apple.WebKit2                 0x0000000100035602 WebKit::PluginInfoStore::findPlugin(WebCore::String&, WebCore::KURL const&) + 324 (PluginInfoStore.cpp:174)
6   com.apple.WebKit2                 0x0000000100083c10 WebKit::WebProcessProxy::getPluginHostConnection(WebCore::String const&, WebCore::KURL const&, WebCore::String&) + 76 (WebProcessProxy.cpp:198)
7   com.apple.WebKit2                 0x0000000100083e58 WebKit::WebProcessProxy::didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, CoreIPC::ArgumentEncoder*) + 422 (WebProcessProxy.cpp:348)
8   com.apple.WebKit2                 0x000000010001a387 CoreIPC::Connection::dispatchMessages() + 357 (Connection.cpp:264)
...

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