https://comsec.ethz.ch/research/microarch/retbleed/
Mitigating Retbleed in the Linux kernel required a substantial effort, involving changes to 68 files, 1783 new lines and 387 removed lines. Our performance evaluation shows that mitigating Retbleed has unfortunately turned out to be expensive: we have measured between 14% and 39% overhead with the AMD and Intel patches respectively.
Mitigating Phantom JMPs with a generic flushing of the branch predictor unit on kernel transitions imposes up to 209% performance overhead.
works as intended king
How did Arm manage to avoid this?
Intel and x86 are tools that the American government uses for spying all over the world. The American government loves the security vulnerabilities in x86.
It's in the name itself.
Intelligence is information gathered within or outside the U.S. that involves threats to our nation ...