Intel 20230808 Microcode Published For DOWNFALL, Other Security & Functional Issues

[phoronix]

Phoronix: Intel 20230808 Microcode Published For DOWNFALL, Other Security & Functional Issues

In addition to the Linux kernel patches for GDS/Downfall for reporting the mitigated state and handling around Intel's latest speculative execution vulnerability, the updated CPU microcode has now been published on GitHub. In addition to having the Downfall mitigations for Skylake through Icelake/Tigerlake, there are also other security updates and functional issues resolved by this Intel 20230808 CPU microcode release...

https://www.phoronix.com/news/Intel-20230808-Microcode

[Shtirlic]

Functional issue

Branch Predictor May Produce Incorrect Instruction Pointer
Under complex microarchitectural conditions, the branch predictor may produce an incorrect
instruction pointer leading to unpredictable system behavior.