ARM64 Patches For Linux 4.18 Roll Out With Spectre V4 Mitigation

2018-Jun-08 | Tags: 64bitkernelsecurityupdate

Linux on ARMThe ARM64 (64-bit ARM / AArch64) architecture updates have been submitted today for the Linux 4.18 kernel.

Arguably the most notable addition for ARM64 in Linux 4.18 is now having Spectre Variant Four mitigation after the ARM patches had been floating around in recent weeks. The ARM64 mitigation follows the x86 approach in Speculative Store Bypass Disable (SSBD) for addressing this recent CPU vulnerability. The ARM64 SSBD support relies upon an SMC firmware call to set a hardware chicken bit.

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Linux on ARM