CVE-2026-93173 bpf,lsm: Drop bpf_prog_free from sleepable_lsm_hooks

In the Linux kernel, the following vulnerability has been resolved: bpf,lsm: Drop bpfprogfree from sleepablelsmhooks bpfprogputrcu is the callrcu callback for non-sleepable programs. securitybpfprogfree called from there fires bpfprogfree in softirq; if a sleepable LSM prog is attached to that...