6.15.6 MITIGATION_TSA // Intel CPU Users can skip this topic

[_roman_]

I wanted to share the new configuration point for cpu security in kernel 6.15.6 MITIGATION_TSA.

Seems many AMD CPU are affected

Relevant urls

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7029.html

AMD Warns of Critical New Vulnerabilities in Its CPUs: What You Need to Know - UNDERCODE NEWS

AMD has revealed several vulnerabilities classified as Transient Scheduler Attacks (TSA), targeting speculative side channels in its CPUs. Speculative

undercodenews.com

AMD Discovers Critical Security Flaws in Modern Processors That Could Leak Sensitive Data

AMD's Zen 3/4 processors vulnerable to new Transient Scheduler Attacks that could leak sensitive data across security boundaries.

www.ctol.digital

Linux Patched For Transient Scheduler Attacks "TSA" Impacting AMD CPUs - Phoronix

www.phoronix.com

edit:

just for information

19 hex is 25 in decimal

Therefore I have a bad silicion

Sienna_Cichlid /home/roman # cat /proc/cpuinfo 
processor    : 0
vendor_id    : AuthenticAMD
cpu family    : 25
model        : 97
model name    : AMD Ryzen 5 7600X 6-Core Processor
...

 

[R-T-B]

Basically, affects 7000 series and earlier, in the desktop product line. Seems 9000 series is immune, at least for now.