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Linux Kernel Patched For Branch History Injection "BHI" Intel CPU Vulnerability
Disclosed back in March 2022 was Branch History Injection (BHI) as a new Spectre vulnerability affecting Intel and Arm CPUs
Disclosed back in March 2022 was Branch History Injection (BHI) as a new Spectre vulnerability affecting Intel and Arm CPUs. Linus Torvalds merged this "nativebhi" branch providing this newest CPU security vulnerability mitigation. The updated kernel documentation does point to new research motivating this BHI mitigation:"Previously the only known real-world BHB attack vector was via unprivileged eBPF.
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