Intel Secretly Firefighting a Major CPU Bug Affecting Datacenters?
There are ominous signs that Intel may be secretly fixing a major security vulnerability affecting its processors, which threatens to severely damage its brand equity among datacenter and cloud-computing customers. The vulnerability lets users of a virtual machine (VM) access data of another VM on the same physical machine (a memory leak). Amazon, Google, and Microsoft are among the big three cloud providers affected by this vulnerability, and Intel is reportedly in embargoed communications with engineers from the three, to release a software patch that fixes the bug. Trouble is, the patch inflicts an unavoidable performance penalty ranging between 30-35%, impacting the economics of using Intel processors versus AMD ones. https://www.techpowerup.com/240174/intel-secretly-firefighting-a-major-cpu-bug-affecting-datacenters
そんなつまらなイ おせんべい M/Bにのっけて 誰も喜びませ 0797名無しさん@1周年2018/01/04(木) 05:53:03.83ID:fW6HfyXU0 一般人はPCの電源を使わないときに抜いておけばあまり被害がない? 物理的に起動できないのだし… 0798名無しさん@1周年2018/01/04(木) 05:53:11.25ID:TOFeQepa0 というかこれを公表したのは攻撃しろって合図か 0799名無しさん@1周年2018/01/04(木) 05:53:25.36ID:C8mTKHQv0 世代が新しい高速なCPUほど速度低下の影響は少なくなるんだろうけどさ ムキムキで俊足の人のほうが米俵担いでも平気という 投げ売りされるなら世代古けりゃ逆に買い時かもな 0800名無しさん@1周年2018/01/04(木) 05:53:29.47ID:t/wpzPvh0 倒産しろ金返せ 0801名無しさん@1周年2018/01/04(木) 05:53:29.70ID:38dZWuA40 パッチはCPUメーカー種類問わず全部に当てるのか? 雷禅も遅くなる可能性あるのかな 0802名無しさん@1周年2018/01/04(木) 05:53:34.80ID:4ak4iIa90>>769 新品原付きバイクが買えちゃう値段のかい? 0803名無しさん@1周年2018/01/04(木) 05:53:39.09ID:XiR1LgE00 現状で個人にできることてなんだろ? Windows Update切っておくくらい? 0804名無しさん@1周年2018/01/04(木) 05:53:46.03ID:CCSiQjRh0>>786 型式というか半導体の物理的構造が共通化してるところあったら 基本的には、その部分は物理的に同じって意味だよ。それをAと呼ぶかBと呼ぶかの違いです。(´・ω・`) まだわかってねーな。w 0805名無しさん@1周年2018/01/04(木) 05:53:46.38ID:Vo4RHTQK0https://hothardware.com/news/intel-cpu-bug-kernel-memory-isolation-linux-windows-macos In a nutshell, the bug allows everyday programs to "illegally" access certain contents in protected kernel memory. The "fix", so to speak, is to implement Kernel Page Table Isolation (PTI), which, for all intents and purposes, makes the kernel invisible to running processes. In a perfect world, such training wheels shouldn't be needed to isolate the kernel, but software patches that are nearing release for Windows, Linux and macOS systems will address the exploit head-on.