WebKit: JSC: JSArray::appendMemcpy uninitialized memory copy(CVE-2017-7064)

WebKit: JSC: JSArray::appendMemcpy uninitialized memory copy Here's a snippet of JSArray::appendMemcpy. bool JSArray::appendMemcpyExecState exec, VM& vm, unsigned startIndex, JSC::JSArray otherArray auto scope = DECLARETHROWSCOPEvm; if !canFastCopyvm, otherArray return false; IndexingType type =...