sched_ext and proxy execution set to share one Linux kernel
Andrea Righi’s v14 series drops the build-time ban so distributions can ship both features and let BPF schedulers opt in at runtime.
By oopsKernel & Low-Level
Kernel finishes RCU-safe page table free for all arches
A patch series converts remaining architectures so userspace page tables are always freed after an RCU grace period, unlocking lockless walks.
By oopsKernel fixes UAF in OVS and act_ct conntrack helpers
Unconfirmed entries could leave stale expectation pointers after extension realloc, reported against Open vSwitch and TC conntrack.
By oopsBPF verifier patch scopes callback args after kernel memory leaks
A proposed frame-owned reference type would stop helpers from handing programs pointers that outlive the call, after reports of stack exposure via ringbuf drain and array map iteration.
By oopsBPF gains indirect subprogram calls via new callx instruction
Alexei Starovoitov’s series lets the verifier and JITs accept LLVM’s function-pointer calls, unlocking vtables and dispatch tables in BPF C and Rust.
By oopsClaude-written mlx5 driver proposed for Linux VFIO selftests
Jason Gunthorpe says an AI produced a ConnectX selftest driver in days that once took months of human work.
By oopsBPF exception cleanups unlock Rust Drop on bpf_throw() unwind
The kernel and libbpf now run compiler-emitted landing pads when bpf_throw() walks the stack, so frames can release RCU locks and other owned resources.
By oopsKernel series fixes coredump UAF, truncated dumps, and hangs
Christian Brauner’s multi-patch stable-bound work closes races among coredumps, signals, freezers, and io_uring workers.
By kexecFrom blanket bans to AGENTS.md: open source tries to govern AI code
Kernel selftests, QEMU policy drafts, review-bot injection risks, and Free Software fights over LLM packages are forcing projects to replace unenforceable AI prohibitions with explicit rules while licensing and security stakes remain open.
By kexecIOMMU live-update patches aim to keep VM DMA mappings across kexec
Google's v5 series preserves Intel VT-d and iommufd domain state so assigned devices can survive a kernel live update without dropping translations.
By oopsRFC keeps KVM guests running across host kexec live updates
Pasha Tatashin’s early OrphanVM proof of concept preserves physical CPUs so vCPUs keep executing while the host kernel is replaced.
By oopsWhen dual maintenance ends: Rust Binder deletion and the nova-core binding fight
A proposal to delete the C Binder driver and NVIDIA’s expanding Rust vGPU stack force the kernel community past experiments into the harder question of retiring C subsystems.
By kexecLinux NVMe adds TP8028 cross-controller path recovery
Host and target support for Rapid Path Failure Recovery lets multipath NVMe fence a dead path before failover, avoiding double completion and data corruption.
By kexecBPF exception unwind gains cleanup pads for Rust Drop
Yonghong Song's bpf-next series lets bpf_throw() run compiler-emitted landing pads so frames can release locks and owned objects on the way out.
By kexecLinux perf drops embedded Python for standalone scripts
Ian Rogers's 49-patch series finishes moving perf analysis scripts onto a C extension module, cutting overhead and build complexity.
By kexecBPF exception cleanup pads clear path for Rust panics
Kernel support for LLVM 23 unwind tables lets bpf_throw() run Drop glue before discarding frames that hold locks or referenced pointers.
By kexecLinus demands real users before hazard pointers land
McKenney and Desnoyers floated a full RFC series; Torvalds wants core conversions and real workload numbers, not torture tests.
By kexecNOMMU GUP pin path fixed after io_uring use-after-free
On kernels without an MMU, pin and unpin refcounts were asymmetric, so repeated io_uring fixed-buffer registration could free pages still mapped by userspace.
By kexecKernel THP split path split into anon and file helpers
Kairui Song’s cleanup series separates mixed folio-split logic so swap-cache restrictions can be lifted later.
By oopsStable kernels need alternate fix for AF_UNIX UAF
CVE-2026-64109 still affects long-term trees after mainline removed a dangerous tail length read unsuitable before 6.5.
By kexecVirtual swap layer proposed to decouple Linux PTEs from backing
Nhat Pham's v5 series lets zswap and zero pages claim swap entries without pre-allocating physical slots, and retunes memcg swap charging to match.
By kexecLinux arm64 drops remaining big-endian kernel support
Will Deacon's cleanup series removes dead CONFIG_CPU_BIG_ENDIAN code after the option was marked BROKEN.
By oopsperf trace stops vetoing syscalls for every concurrent tracer
Ian Rogers moves filtering into BPF maps so a single session can no longer drop raw_syscalls events system-wide, and the exclusive test tags that hid the problem can go.
By kexecLinux NUMA series unblocks promotion of hot slow-tier memory
Filters meant to calm socket placement were stranding hot pages on CXL, and Meta patches separate the two jobs.
By kexecKernel series keeps mTHP on when PMD huge pages are missing
Overloaded THP availability checks no longer wipe out multi-size transparent huge pages on CPUs without PMD leaves.
By oopsLinux TLS stack gains TLS 1.3 hardware offload and rekey
A 15-patch net-next series enables NIC acceleration for TLS 1.3, including KeyUpdate, starting with Mellanox ConnectX-6 Dx and newer.
By oopsBPF gains common cgroup attach path for struct_ops maps
A bpf-next series reuses the existing bpf_link cgroup model so groups of BPF programs can share attach, ordering, and query semantics, with TCP sock ops as the first consumer.
By kexecKbuild series targets serial bottlenecks for far faster kernel builds
Lorenzo Stoakes’s v3 patches claim up to 36% faster full allmodconfig builds, roughly 70% faster incrementals, and about 90% faster no-op rebuilds.
By oopsGoogle floats stealable PING futexes for Linux
RFC would trade strict PI handoff for lock stealing and proxy execution; maintainers call it premature and flag lockup risks.
By kexecLinux networking gains fwnode PCS provider API for external SerDes
Phylink takes ownership of PCS selection and hotplug, ending ad-hoc MAC driver wiring as external 10G blocks proliferate.
By oopsClaude builds mlx5 VFIO selftest driver in four days
Jason Gunthorpe submitted a ConnectX selftest series largely generated by Anthropic's model, cutting a job that usually takes months down to about a week.
By oopsLinux VFIO series adds CXL Type-2 accelerator passthrough
NVIDIA’s Manish Honap posts work that lets guests drive a virtual HDM decoder and device reset while the host keeps the physical mapping.
By kexecLinux mm series keeps anonymous THPs intact across swap
Usama Arif's 29-patch work adds PMD-level swap entries so huge pages need not split on reclaim, with roughly 4x throughput on a swap-heavy benchmark.
By oopsNVIDIA vGPU VFIO driver sparks Rust rewrite debate
A C-based variant driver for nova-core draws a full Rust counter-proposal and VFIO maintainer pushback on long-term review capacity.
By kexecLinux makes per-VMA locks unconditional across all configs
A series from Dave Hansen and Suren Baghdasaryan drops architecture gates so binder, TCP, and generic code can lock individual VMAs without mmap_lock fallbacks.
By kexecLTS kernels still lack AF_UNIX slab UAF fix for CVE-2026-80521
An unprivileged SCM_RIGHTS path can hit a dangling pointer in the Unix socket garbage collector on four supported stable lines.
By oopsRust PCI drivers gain SR-IOV with typed PF data sharing
A kernel series lets Rust physical-function drivers publish lifetime-checked payloads that both Rust and C virtual-function drivers can borrow safely.
By oopsASUS ROG Ally gamepad support lands in hid-asus
Denis Benato's v7 series brings years of out-of-tree Ally controller work into the mainline ASUS HID driver.
By kexecBPF LSM gains atomic xattr labeling at inode creation
A bpf-next series lets BPF security programs label new files before they become visible, and closes a verifier hole that allowed trusted-pointer forgery.
By kexecKVM arm64 gets basic plumbing for Arm CCA Realms
Arm posts the eighteenth revision of structural KVM changes for confidential Realm VMs, still short of a runnable guest.
By kexec