exploits/cve-2026-31431-copy-fail

Copy Fail 2026-04-30 melkerton

• https://cybersecuritynews.com/linux-kernel-0-day-copy-fail/

Test script source

• https://github.com/rootsecdev/cve_2026_31431

Check mod is loaded

lsmod | grep algif_aead

Temp fix if found

• https://cmms.pwgroup.ca/files/utils_cve_2026_31431.tar

bashecho "install algif_aead /bin/false" > /etc/modprobe.d/disable-algif-aead.conf
rmmod algif_aead 2>/dev/null

Verfied servers (mod unused)

• cavall
• cerberus
• grackle
• hydra
• mail1
• mrp-pve
• pwr-it
• pwr-pve
• starling