CVE-2026-90359

CVE-2026-90359 affects the Linux kernel BPF subsystem. The btf_distill_func_proto() function, which builds the function model for fentry/fexit/fmod_ret/fsession trampolines and struct_ops , has accepted 16-byte __int128 return values since the trampoline was introduced. However, the BPF trampolin...

CVE-2026-90359 bpf: Reject >8 byte return values on return-reading trampoline paths

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject 8 byte return values on return-reading trampoline paths btfdistillfuncproto builds the function model used for the fentry/fexit/fmodret/fsession trampolines and structops. It has accepted a 16-byte int128 return value...

CVE-2026-90358 bpf, x86: Fix trampoline stack size for 128-bit arguments

In the Linux kernel, the following vulnerability has been resolved: bpf, x86: Fix trampoline stack size for 128-bit arguments btfdistillfuncproto accepts a function argument up to 16 bytes, so a 128-bit scalar such as int128 reaches the x86 trampoline with argsize == 16. But the current...

CVE-2026-90358

CVE-2026-90358 affects the Linux kernel BPF subsystem on x86 . The root cause is in the x86 trampoline: when a BPF program is called with a 128-bit scalar argument (e.g., __int128, arg_size == 16), the trampoline incorrectly assumes it needs only one register. This under-allocates the register sa...

EUVD-2026-82019

In the Linux kernel, the following vulnerability has been resolved: bpf, x86: Fix trampoline stack size for 128-bit arguments btfdistillfuncproto accepts a function argument up to 16 bytes, so a 128-bit scalar such as int128 reaches the x86 trampoline with argsize == 16. But the current...

CVE-2026-90358 bpf, x86: Fix trampoline stack size for 128-bit arguments

In the Linux kernel, the following vulnerability has been resolved: bpf, x86: Fix trampoline stack size for 128-bit arguments btfdistillfuncproto accepts a function argument up to 16 bytes, so a 128-bit scalar such as int128 reaches the x86 trampoline with argsize == 16. But the current...

EUVD-2026-82003

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix mmaplock deadlock on arena lock failure Reported by the Sashiko AI review. arenavmfault returns VMFAULTRETRY when it can't take arena-spinlock, but it never took mmaplock. The fault path assumes a VMFAULTRETRY handler...

CVE-2026-90342 bpf: Fix mmap_lock deadlock on arena lock failure

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix mmaplock deadlock on arena lock failure Reported by the Sashiko AI review. arenavmfault returns VMFAULTRETRY when it can't take arena-spinlock, but it never took mmaplock. The fault path assumes a VMFAULTRETRY handler...

CVE-2026-90342

CVE-2026-90342 is a deadlock in the Linux kernel BPF subsystem, specifically in the arena_vm_fault() path. The root cause is that arena_vm_fault() returns VM_FAULT_RETRY when it fails to acquire arena->spinlock, without ever having taken mmap_lock. The fault handler (do_user_addr_fault) then r...

CVE-2026-90342 bpf: Fix mmap_lock deadlock on arena lock failure

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix mmaplock deadlock on arena lock failure Reported by the Sashiko AI review. arenavmfault returns VMFAULTRETRY when it can't take arena-spinlock, but it never took mmaplock. The fault path assumes a VMFAULTRETRY handler...

EUVD-2026-81978

In the Linux kernel, the following vulnerability has been resolved: bpf: Invalidate RCU pointers after final spin unlock In a sleepable BPF program, a spin lock can provide the only RCU protection for a kptr. The final bpfspinunlock ends that protection, but the verifier leaves the pointer valid...

CVE-2026-90317 bpf: Invalidate RCU pointers after final spin unlock

In the Linux kernel, the following vulnerability has been resolved: bpf: Invalidate RCU pointers after final spin unlock In a sleepable BPF program, a spin lock can provide the only RCU protection for a kptr. The final bpfspinunlock ends that protection, but the verifier leaves the pointer valid...

CVE-2026-90317

CVE-2026-90317 is a use-after-free in the Linux kernel BPF subsystem. In a sleepable BPF program , a spin lock can be the sole RCU protection for a kernel pointer (kptr). The final bpf_spin_unlock() ends that protection, yet the verifier leaves the pointer marked valid, allowing another CPU to fr...

CVE-2026-90312 bpf: Check load-acquire src ptr type before the load

In the Linux kernel, the following vulnerability has been resolved: bpf: Check load-acquire src ptr type before the load checkatomicload calls checkloadmem before atomicptrtypeok. For a load-acquire that fetches into its own source register dstreg == srcreg, checkloadmem overwrites srcreg's type...

CVE-2026-90313 bpf, cgroup: Fix invalid storage access after __cgroup_bpf_attach failed

In the Linux kernel, the following vulnerability has been resolved: bpf, cgroup: Fix invalid storage access after cgroupbpfattach failed A potential invalid storage access issue can occur after replacing a cgroup bpf prog. This occurs in the following scenario: 1. prog1 with storage is attached t...

CVE-2026-90313 bpf, cgroup: Fix invalid storage access after __cgroup_bpf_attach failed

In the Linux kernel, the following vulnerability has been resolved: bpf, cgroup: Fix invalid storage access after cgroupbpfattach failed A potential invalid storage access issue can occur after replacing a cgroup bpf prog. This occurs in the following scenario: 1. prog1 with storage is attached t...

CVE-2026-90312 bpf: Check load-acquire src ptr type before the load

In the Linux kernel, the following vulnerability has been resolved: bpf: Check load-acquire src ptr type before the load checkatomicload calls checkloadmem before atomicptrtypeok. For a load-acquire that fetches into its own source register dstreg == srcreg, checkloadmem overwrites srcreg's type...

CVE-2026-90313

CVE-2026-90313 affects the Linux kernel BPF/cgroup subsystem. When a cgroup BPF program is replaced using BPF_F_REPLACE and the replacement fails midway (e.g., in bpf_trampoline_link_cgroup_shim or update_effective_progs), the cleanup path frees the new storage but fails to restore pl->storage...

EUVD-2026-81974

In the Linux kernel, the following vulnerability has been resolved: bpf, cgroup: Fix invalid storage access after cgroupbpfattach failed A potential invalid storage access issue can occur after replacing a cgroup bpf prog. This occurs in the following scenario: 1. prog1 with storage is attached t...

CVE-2026-90312

CVE-2026-90312 affects the Linux kernel BPF verifier . In check_atomic_load(), the function calls check_load_mem() before atomic_ptr_type_ok(). When a load-acquire fetches into its own source register (dst_reg == src_reg), check_load_mem() overwrites the source register's type, causing atomic_ptr...