Kernel restores NUMA balancing for shmem after accidental disable
The fix unsticks tiered-memory workloads but can slow KVM guests that relied on the old broken skip.
By oopsKernel & Low-Level
Kernel fix stops reclaim storms under vm.defrag_mode
Non-movable allocations no longer thrash swap when defrag_mode cannot claim free pages from movable blocks.
By oopsLinux 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 kexecKernel maintainers require Assisted-by tags for AI rubber-duck reviews
Greg Kroah-Hartman and Jonathan Corbet say even non-generative AI code review of the xillybus driver must be credited.
By kexecLinux mm series proposes private NUMA nodes, isolated by default
Gregory Price's v5 patchset flips device-backed memory from fully fungible to opt-in kernel services.
By kexecBtrfs folio lock leak hangs KVM guests on file-backed RAM
Large data folios dirtied via GUP without subpage bits leave writeback holding a lock forever, stalling guests and host flushers.
By kexecStable kernels get BPF verifier fix for ld_abs/ind in subprogs
CVE-2026-53090 addressed incomplete failure-path analysis that could let unsafe programs pass verification.
By kexecStable kernel blocks IV race in userspace skcipher sockets
An unprivileged local attacker could overwrite an in-flight IV and reuse keystream on concurrent cipher operations.
By kexecKernel gains fwnode PCS API as external serdes become common
Christian Marangi’s net-next series gives phylink a proper producer-consumer model for Physical Coding Sublayer devices, with Airoha AN7581 as the first in-tree user.
By kexecRFC proposes in-kernel AMD GPU offload for XDP and IPsec
knod would JIT-compile packet programs on the GPU from the kernel, with no CUDA or ROCm in the data path.
By kexec