AMD CPUs Are Potentially Vulnerable To Spectre / Variant 2

[phoronix]

Phoronix: AMD CPUs Are Vulnerable To Spectre / Variant 2

Last week in light of the Spectre disclosure. AMD believed they were at "near zero risk" to Variant Two / Branch Target Injection. But now the company confirmed last night that's not the case: they are vulnerable...

http://www.phoronix.com/scan.php?page=news_item&px=AMD-Is-Vulnerable-Variant-2

[dungeon]

Hm, i still see answers as yes, maybe and not because:

While we believe that AMD’s processor architectures make it difficult to exploit Variant 2, we continue to work closely with the industry on this threat.

That more sounds like - we must accept trampoline, does not matter if we will jump with one leg or two

[davidbepo]

its not exploitable unless you change linux jit parameters so IF YOU ARE AN AMD USER ADD noretpoline TO BOOT PARAMETERS

[dungeon]

Yeah, sounds like AMD users should disable that but there is push it seems that you must accept default for even 'maybe' reason

[davidbepo]

Yeah, sounds like AMD users should disable that but there is push it seems that you must accept default for even 'maybe' reason

yeah, sounds fine to me, lets give users a performance drop by default to fix an issue that only happens in non-default [/irony]

[cl333r]

its not exploitable unless you change linux jit parameters so IF YOU ARE AN AMD USER ADD noretpoline TO BOOT PARAMETERS

AND IF YOU DON'T WANT VIRUSES ADD noviruses TO BOOT PARAMETERS.

[dungeon]

yeah, sounds fine to me, lets give users a performance drop by default to fix an issue that only happens in non-default [/irony]

Bullshit is constitutional part of our world, so even maybeness should be prevented even if it is not working AS IS

[starshipeleven]

AND IF YOU DON'T WANT VIRUSES ADD noviruses TO BOOT PARAMETERS.

AND IF YOU WANT MONEY ADD givememoney TO BOOT PARAMETERS

[davidbepo]

AND IF YOU WANT MONEY ADD givememoney TO BOOT PARAMETERS

well, that escalated quickly

[dungeon]

There should be givemeperf parameter for these ready to burn things all around