Linux proxy execution gains optional sched_ext BPF support
Andrea Righi's series ends a build-time mutual exclusion so one kernel can ship both features and let BPF schedulers opt in at runtime.
By kexec#bpf
Pahole gains Rust enum DWARF support and dwz alternate debug handling
Arnaldo Carvalho de Melo’s series stops Rust Option and Result types from collapsing to empty BTF structs and unblocks type loading on dwz-compressed debuginfo.
By kexecBPF stack helpers race fixed with preemption disable
A preemptible window let concurrent tasks inflate callchain length and overwrite caller buffers via bpf_get_stack and bpf_get_stackid.
By oopsBPF gains 16-byte aggregate returns via R0:R2 pair
Kernel verifier and JITs learn LLVM 23's convention so subprograms and kfuncs can return __int128 and small structs by value.
By oopsBPF stack helpers race fixed to stop out-of-bounds writes
Preemptible programs could reuse a per-CPU callchain buffer and inflate the copy length past the caller's buffer.
By oopsBPF verifier fixes plug refcount_acquire holes for borrowed kptrs
Two bugs let CAP_BPF programs feed NULL or stale pointers into refcount paths that could crash the kernel.
By kexecAF_XDP TX metadata hardened against OOB reads and races
Stanislav Fomichev posts fixes after a Microsoft report of KASAN out-of-bounds reads and TOCTOU flaws in shared TX metadata.
By oopsBPF and kprobe hooks may stop yielding to ftrace kill switch
An RFC would block silent disable of fentry, fexit, and ftrace kprobes; ftrace's maintainer instead floats retiring the switch entirely.
By kexecLinux patchset unites proxy execution with sched_ext
Distributions can ship one kernel with both features and let BPF schedulers opt in at runtime.
By kexecsched_ext and proxy execution no longer mutually exclusive
BPF schedulers can opt into handling mutex-blocked donors so one kernel can ship both features.
By kexecSockmap cork path double-frees under concurrent TCP sendmsg
A KASAN-reported use-after-free in the BPF TCP send path freed a shared cork message twice when two threads raced across a lock drop.
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 kexec