TRY THIS Copy Fail Vulnerability Fixes

[DoubleDriveLine]

I expect this Linux Kernel exploit affects every system out there. Is there a way to update the Kernel on our systems and not break our systems? Luckily all of mine are behind firewalls so I have some protection against it.

I am still running IPBX 2021 on Debian 10 or 11 can't remember which at the moment and I just shut it down to update my Proxmox server.

 

[mbellot]

ALERT Post in thread 'AI helped find CopyFail exploit to give a user root access to in all Linux distros'

May 4, 2026

This is an absolute goldmine for the SNG7 Freepbx 16 distribution

I would recommend, if you can, to plan a migration to Incredible PBX 17 or FreePBX 17 on Debian 12 OS, for a modern Linux kernel 6.1.170, which is patched and safe from this one line root exploit (because Linux devs reverted the efficiency patch from 2017 that allows this exploit to occur).

Or, if you can, patch your SNG7 3.x kernel immediately with the fix, recompile the kernel, and install it.

Or, if patching the kernel is not immediately possible, you can disable the vulnerable kernel module by running the...

• chris_c_

In place fix here.

 

[wardmundy]

For Debian platforms:

apt update
apt install --only-upgrade linux-image-amd64
reboot

Temporary fix for FusionPBX 3 systems:

echo "install algif_aead /bin/false" | sudo tee /etc/modprobe.d/disable-algif.conf
rmmod algif_aead
# then test it
lsmod | grep algif_aead

 

[wardmundy]

For Ubuntu platforms:

apt update
apt install --only-upgrade linux-image-$(uname -r)
reboot

 

[KNERD]

I expect this Linux Kernel exploit affects every system out there. Is there a way to update the Kernel on our systems and not break our systems? Luckily all of mine are behind firewalls so I have some protection against it.

I am still running IPBX 2021 on Debian 10 or 11 can't remember which at the moment and I just shut it down to update my Proxmox server.

Also on Odysee for those who want to avoid Google products

732 bytes of Python just borked every Linux machine on earth…

CodeRabbit's new Slack Agent lets you manage your team's agentic workflow right in Slack - https://coderabbit.link/fireship-agent

odysee.com

 

[wardmundy]

CVE-2026-31431 Mitigation

While waiting for the patch on Debian 12 here’s how to mitigate the issue Get the test script to see if the system is vulnerable. cd /usr/src curl -O https://raw.githubusercontent.com/rootsecdev/cve_2026_31431/main/test_cve_2026_31431.py python3 test_cve_2026_31431.py Run the test script...

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