SPECTRE and MELTDOWN: Bug rocks Intel / ARM CPUs

[segfaulted]

Kinda glad I bought AMD this round. For those who don't know there is a new bug affecting just about every SKU from Intel made in the last .. ohh.. _DECADE_ or so. It's actually worse then F00F or FDIV. Only mitigation appears to castrate the CPU upward of 30%! (depending on processes).

Can Asus confirm AMD and more importantly for me, this or any AMD motherboard are not affected? If so, will there be RMAs?

Fun fact, Intel's CEO dumped stock back in November before they started issuing gags on people from even talking about it.

*****ASUS advisory page(may get updated): https://www.asus.com/News/V5urzYAT6myCC1o2 ******

[Silent Scone@ROG]

Kinda glad I bought AMD this round. For those who don't know there is a new bug affecting just about every SKU from Intel made in the last .. ohh.. _DECADE_ or so. It's actually worse then F00F or FDIV. Only mitigation appears to castrate the CPU upward of 30%! (depending on processes).

Can Asus confirm AMD and more importantly for me, this or any AMD motherboard are not affected? If so, will there be RMAs?

Fun fact, Intel's CEO dumped stock back in November before they started issuing gags on people from even talking about it.

Do you run or host a number of virtual machines? If not, then you should feel about the same as you did before you read about this. You're still using the same hardware you were when you purchased it.

[segfaulted]

Do you run or host a number of virtual machines? If not, then you should feel about the same as you did before you read about this. You're still using the same hardware you were when you purchased it.

I do but it has nothing to do with the number of VMs.

It will hit enterprise users hard regardless.

[panzlock]

https://www.theregister.co.uk/2018/0...u_design_flaw/

https://hothardware.com/news/intel-c...-windows-macos

Just a bit more information.

[Praz]

Kinda glad I bought AMD this round. For those who don't know there is a new bug affecting just about every SKU from Intel made in the last .. ohh.. _DECADE_ or so. It's actually worse then F00F or FDIV. Only mitigation appears to castrate the CPU upward of 30%! (depending on processes).

Can Asus confirm AMD and more importantly for me, this or any AMD motherboard are not affected? If so, will there be RMAs?

Fun fact, Intel's CEO dumped stock back in November before they started issuing gags on people from even talking about it.

Hello

This is an issue concerning the processor not the motherboard. As such, regardless of the platform, there is absolutely no valid reason for motherboard RMAs. While you are relishing in the fact of purchasing AMD keep in mind the fixes being pushed out will cripple AMD performance as well.

[squawker]

Hello

While you are relishing in the fact of purchasing AMD keep in mind the fixes being pushed out will cripple AMD performance as well.

Perhaps in the first fixes, but it is nonsense that a patch that hits performance would be permanently applied to processors do not need it:

Linux Will End Up Disabling x86 PTI For AMD Processors

https://git.kernel.org/pub/scm/linux...utm_source=anz

Hope Windows do the same.

[zvober]

As Linus Torvalds (founder of the Linux kernel), lets rip on Chipzilla:
Quotes:
"“Meltdown” is the name given to a side-channel attack on memory isolation that affects most Intel chips since 2010, as well as a few Arm cores.
[…]
Meltdown – on Intel CPUs and the Arm Cortex-A75 – allows normal applications to read protected kernel memory, allowing them to steal passwords and other secrets.
[…]
There’s also another security flaw named Spectre that affects, to varying degrees, Intel, AMD, and Arm. Depending on your CPU, Spectre allows normal apps to potentially steal information from other apps, the kernel, or the underlying hypervisor. Spectre is difficult to exploit, but also difficult to fully patch – and is going to be the real stinger from all of this.
[…]
On vulnerable systems, Meltdown allows user programs to read from private and sensitive kernel address spaces, including kernel-sharing sandboxes like Docker or Xen in paravirtualization mode. And when you’ve stolen the keys to the kingdom, such as cryptographic secrets, you’ll probably find you can indeed corrupt, modify or delete data, pal.
[…]
Chipzilla doesn’t want you to know that every Intel processor since 1995 that implements out-of-order execution is potentially affected by Meltdown – except Itanium, and the Atom before 2013.

Meltdown and Spectre CPU Flaws Affect Intel, ARM, AMD Processors
https://amp.thehackernews.com/thn/20...erability.html

"Everyone Is Affected": Why The Implications Of The Intel "Bug" Are Staggering
Security vulnerability aside, the fix may be just as bad: it would result in a significant slowdown of the CPU, and the resultant machine. Because the exploit takes advantage of a technology intended to accelerate the performance of the processors, the fix slows them, said the person.
https://www.zerohedge.com/news/2018-...are-staggering

[panzlock]

People making lots of threads about this issue. Can we please centralize them so we know what;s going on, exactly? If a mod could merge threads or something, that would be nice.

[ManMountain]

There are two flaws, SPECTRE and MELTDOWN. The SPECTRE issue applies to Intel, AMD and ARM and the MELTDOWN problem affects Intel, not AMD.

[panzlock]

Guru3d claims no performance hit after updates that they could find so far:

https://forums.guru3d.com/threads/ke....418750/page-8