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Linux 6.15 Lands Patches To Further Clean Up Its Spectre RSB Mitigations
Merged today was this week's batch of x86 fixes ahead of the Linux 6.15-rc2 release on Sunday
Merged today was this week's batch of x86 fixes ahead of the Linux 6.15-rc2 release on Sunday. For the past few months Josh Poimboeuf of Red Hat has been working on cleaning up the existing RSB mitigation handling within the Linux kernel for Intel and AMD CPUs along with introducing a document to better sum up the conditions and handling for the Return Stack Buffer treatment on AMD and Intel processors. This document attempts to consolidate all the relevant information in once place and clarify the reasoning behind the current RSB-related mitigations.
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