# CVE-2026-31431 - Copy Fail - Linux kernel crypto vulnerability

**URL:** https://forums.rockylinux.org/t/cve-2026-31431-copy-fail-linux-kernel-crypto-vulnerability/20375
**Category:** Rocky Linux Help & Support
**Created:** [April 30, 2026, 3:06am UTC](https://forums.rockylinux.org/t/cve-2026-31431-copy-fail-linux-kernel-crypto-vulnerability/20375 "2026-04-30T03:06:49Z")
**Posts on this page:** 1
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### Author: ![fauxgotten](https://avatars.discourse-cdn.com/v4/letter/f/b5e925/32.png) [@fauxgotten](https://forums.rockylinux.org/u/fauxgotten)
#### Post date: [April 30, 2026, 5:37pm UTC](https://forums.rockylinux.org/t/cve-2026-31431-copy-fail-linux-kernel-crypto-vulnerability/20375/8 "2026-04-30T17:37:06Z")

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I added the following line to /etc/default/grub: GRUB\_CMDLINE\_LINUX=“initcall\_blacklist=algif\_aead\_init”

then did a

sudo grub2-mkconfig -o /boot/grub2/grub.cfg

upon reboot the exploit no longer works. The failure message is: AttributeError: module ‘os’ has no attribute ‘splice’. You would probably want to revert this change once a patched kernel is released.

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