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MSEAL Protection Of System Mappings Merged For Linux 6.15
In addition to all of the memory management 'MM' changes merged for the Linux 6.15 kernel, a secondary round of MM updates was submitted and subsequently merged for this next kernel version
Wednesday's additional MM updates sent in by Andrew Morton include the patch series from Google engineer Jeff Xu to allow sealing of system mappings using MSEAL. MSEAL merged into Linux 6.10 last year to allow protecting the memory mapping against (malicious) modification. For example, such an attacker primitive can break control-flow integrity guarantees since read-only memory that is supposed to be trusted can become writable or .text pages can get remapped.
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