Fresh gist: mitigating CVE-2026-31431 ("Copy Fail") on RHEL 8/9/10 with a tiny Ansible playbook.
It blacklists algif_aead via a kernel boot arg (initcall_blacklist=algif_aead_init), reboots only when needed, and asserts the mitigation actually stuck after reboot. Idempotent & safe to re-run.
https://codeberg.org/Larvitz/gists/src/branch/main/2026/20260501-CVE-2026-31431_RHEL_Mitigation.md
#Ansible #RHEL #Linux #InfoSec #SysAdmin #DevOps #CVE #CVE_2026_31431 #copyfail
