CVE-2026-93173

CVE-2026-93173 affects the Linux kernel BPF LSM subsystem. When a non-sleepable BPF program is freed via __bpf_prog_put_rcu() (a call_rcu() callback), it invokes security_bpf_prog_free(), which in turn calls bpf_prog_free in softirq context. If a sleepable LSM program is attached to the sleepable...