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

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

[Greg Kroah-Hartman]

From: Greg Kroah-Hartman <gregkh@kernel.org>

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.

The Linux kernel CVE team has assigned CVE-2026-72378 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 4.20 with commit 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and fixed in 5.10.261 with commit 7ce6737a975ea3e0dc2e5946628d233779ca0caf
	Issue introduced in 4.20 with commit 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and fixed in 5.15.212 with commit 4e0b047848a855f2c933a6439f76a01743ba5620
	Issue introduced in 4.20 with commit 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and fixed in 6.1.178 with commit f70fbf2b974b63a7042705c2b0464cb8c97e9f34
	Issue introduced in 4.20 with commit 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and fixed in 6.6.145 with commit 9ad9016e3333c3c1f9284a253ff0658369e07aac
	Issue introduced in 4.20 with commit 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and fixed in 6.12.97 with commit cb33dd2968588c78fad78dec19f61cabe5785494
	Issue introduced in 4.20 with commit 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and fixed in 6.18.40 with commit 8530206911fd66ad739ca5ce95f1d069f3d42204
	Issue introduced in 4.20 with commit 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and fixed in 7.1.5 with commit bdcd80ff12939d172043fac5eb822b92366a1bab
	Issue introduced in 4.20 with commit 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and fixed in 7.2-rc2 with commit 4897cb71d4ab1f7e1a214adb1e4b80176702368d

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2026-72378
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	fs/afs/vl_list.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/7ce6737a975ea3e0dc2e5946628d233779ca0caf
	https://git.kernel.org/stable/c/4e0b047848a855f2c933a6439f76a01743ba5620
	https://git.kernel.org/stable/c/f70fbf2b974b63a7042705c2b0464cb8c97e9f34
	https://git.kernel.org/stable/c/9ad9016e3333c3c1f9284a253ff0658369e07aac
	https://git.kernel.org/stable/c/cb33dd2968588c78fad78dec19f61cabe5785494
	https://git.kernel.org/stable/c/8530206911fd66ad739ca5ce95f1d069f3d42204
	https://git.kernel.org/stable/c/bdcd80ff12939d172043fac5eb822b92366a1bab
	https://git.kernel.org/stable/c/4897cb71d4ab1f7e1a214adb1e4b80176702368d