Ubuntu alert USN-8291-3 (linux-lowlatency)

From:
             
 
Rodrigo Figueiredo Zaiden <rodrigo.zaiden@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-8291-3] Linux kernel (Low Latency) vulnerabilities
Date:
             
 
Mon, 25 May 2026 13:54:24 -0300
Message-ID:
             
 
<35826d64-72dd-4112-8816-ecf17b139f00@canonical.com>
==========================================================================
Ubuntu Security Notice USN-8291-3
May 25, 2026

linux-lowlatency vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-lowlatency: Linux low latency kernel

Details:

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
   - SMB network file system;
   - Netfilter;
   - io_uring subsystem;
(CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
   linux-image-5.15.0-178-lowlatency  5.15.0-178.188
   linux-image-5.15.0-178-lowlatency-64k  5.15.0-178.188
   linux-image-lowlatency          5.15.0.178.150
   linux-image-lowlatency-5.15     5.15.0.178.150
   linux-image-lowlatency-64k      5.15.0.178.150
   linux-image-lowlatency-64k-5.15  5.15.0.178.150

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
   https://ubuntu.com/security/notices/USN-8291-3
   https://ubuntu.com/security/notices/USN-8291-2
   https://ubuntu.com/security/notices/USN-8291-1
   CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351

Package Information:
   https://launchpad.net/ubuntu/+source/linux-lowlatency/5.1...



Attachment: OpenPGP_signature.asc (type=application/pgp-signature)
-----BEGIN PGP SIGNATURE-----

wsB5BAABCAAjFiEEYrygdx1GDec9TV8EZ0GeRcM5nt0FAmoUfsAFAwAAAAAACgkQZ0GeRcM5nt39
sgf+NJudCN4C/payDtz2jVsLakzU+EKlHWhs7e2Dmv8I0cFkT8mUZ9hwz6RKXIrFXGWV5rByUCHM
8RUGYNYAAJReegoPsGIPHwcF9sxrG1A2mG6GZsQItqeH7DQydgL+nxI6L4IMRAwsVmpLikCBvuph
ePwzk2fZsJBfqEXFXMJH1Us0ffBXvxC8Xx9a1x4VvOonH54ra2/N8PrefE8K/EYEjFbcMkiGB4E4
eIx0txnlb3Q9MLgcBok9ZZvcSLadHJdXw8DPLzZdHZoD7p6I55lEhTjlHuKz2zRhncjapnEfBml6
JO/9H0WINlX3vMbZ6vrG4esoGwlT9WX31Y95noMXxg==
=Xy0W
-----END PGP SIGNATURE-----