CVE-2026-72378 afs: Fix error code in afs_extract_vl_addrs()

High 7.5 Published 15 Aug 2026 Updated 17 Aug 2026

Incorrect error code handling in the Linux kernel AFS module may lead to unexpected behavior during volume location address extraction.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-72378?

CVE-2026-72378 is a high-severity vulnerability in Linux, published on 15 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

afs: Fix error code in afs_extract_vl_addrs()

The error codes on these paths are only set on the first iteration through the loop. Set the correct error code on every iteration.

Which versions are affected by CVE-2026-72378?

How do I fix CVE-2026-72378?

Apply the vendor's patch.

Is CVE-2026-72378 being exploited?

There is no known exploitation of CVE-2026-72378 in the wild and no public exploit code.

Sources

Also known as BELL-CVE-2026-72378, DEBIAN-CVE-2026-72378, GHSA-2wjr-8gx8-q69w, UBUNTU-CVE-2026-72378.