Stable kernels still exposed to CVE-2025-37964 after bad backport
Misordered TLB fix in Linux 6.1, 6.6, and 6.12 left processes able to run with stale translations.
By oops#tlb
Kernel fix corrects wrong TLB flush in page table reclaim
Direct reclaim after MADV_DONTNEED could free a page table while leaving a stale paging-structure cache entry.
By oopsKVM nested SVM drops blanket TLB flushes with per-vCPU L2 ASIDs
Yosry Ahmed's series gives each nested guest its own ASID, matching VMX VPID practice and yielding 8-15% gains on recent AMD CPUs.
By kexecLinux shortens IPI waits that blocked preemption
Core SMP call and x86 TLB flush paths no longer pin the caller for the full remote completion wait, cutting real-time scheduling latency.
By kexec