[Webkit-unassigned] [Bug 221097] New: Null dereference in DocumentLoader::commitData()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=221097

            Bug ID: 221097
           Summary: Null dereference in DocumentLoader::commitData()
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: Page Loading
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: julian_a_gonzalez at apple.com
                CC: beidson at apple.com, rniwa at webkit.org

e.g.

frame #0: WebCore`WebCore::DocumentParser::setDocumentWasLoadedAsPartOfNavigation()+0
frame #1: WebCore`WebCore::DocumentLoader::commitData(char const*, unsigned long)+0
frame #2: WebKit`WebKit::WebFrameLoaderClient::committedLoad(WebCore::DocumentLoader*, char const*, int)+0
frame #3: WebCore`WebCore::DocumentLoader::commitLoad(char const*, int)+0
frame #4: WebCore`WebCore::CachedRawResource::notifyClientsDataWasReceived(char const*, unsigned int)+0
frame #5: WebCore`WebCore::CachedRawResource::updateBuffer(WebCore::SharedBuffer&)+0
frame #6: WebCore`WebCore::SubresourceLoader::didReceiveDataOrBuffer(char const*, int, WTF::RefPtr<WebCore::SharedBuffer, WTF::DumbPtrTraits<WebCore::SharedBuffer> >&&, long long, WebCore::DataPayloadType)+0
frame #7: WebCore`WebCore::SubresourceLoader::didReceiveBuffer(WTF::Ref<WebCore::SharedBuffer, WTF::DumbPtrTraits<WebCore::SharedBuffer> >&&, long long, WebCore::DataPayloadType)+0
frame #8: WebCore`auto WebCore::ResourceLoader::loadDataURL()::$_2::operator()<WTF::Optional<WebCore::DataURLDecoder::Result> >(WTF::Optional<WebCore::DataURLDecoder::Result>)::'lambda'()::operator()()+0
frame #9: WebCore`WTF::CompletionHandler<void ()>::operator()()+0
frame #10: WebCore`WebCore::SubresourceLoader::didReceiveResponsePolicy()+0
frame #11: WebCore`WebCore::DocumentLoader::responseReceived(WebCore::ResourceResponse const&, WTF::CompletionHandler<void ()>&&)::$_3::operator()(WebCore::PolicyAction, WebCore::PolicyCheckIdentifier)+0

<rdar://problem/66168788>

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