==========================================================================
Ubuntu Security Notice USN-7167-2
January 07, 2025

linux-hwe-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8 vulnerabilities
==========================================================================

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

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-lowlatency: Linux low latency kernel
- linux-hwe-6.8: Linux hardware enablement (HWE) kernel
- linux-lowlatency-hwe-6.8: 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:
   - Ext4 file system;
   - Network traffic control;
   - VMware vSockets driver;
(CVE-2024-50264, CVE-2024-49967, CVE-2024-53057)

Update instructions:

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

Ubuntu 24.04 LTS
   linux-image-6.8.0-51-lowlatency  6.8.0-51.52.1
   linux-image-6.8.0-51-lowlatency-64k  6.8.0-51.52.1
   linux-image-lowlatency          6.8.0-51.52.1
   linux-image-lowlatency-64k      6.8.0-51.52.1
   linux-image-lowlatency-64k-hwe-24.04  6.8.0-51.52.1
   linux-image-lowlatency-hwe-24.04  6.8.0-51.52.1

Ubuntu 22.04 LTS
   linux-image-6.8.0-51-generic    6.8.0-51.52~22.04.1
   linux-image-6.8.0-51-generic-64k  6.8.0-51.52~22.04.1
   linux-image-6.8.0-51-lowlatency  6.8.0-51.52.1~22.04.1
   linux-image-6.8.0-51-lowlatency-64k  6.8.0-51.52.1~22.04.1
   linux-image-generic-64k-hwe-22.04  6.8.0-51.52~22.04.1
   linux-image-generic-hwe-22.04   6.8.0-51.52~22.04.1
   linux-image-lowlatency-64k-hwe-22.04  6.8.0-51.52.1~22.04.1
   linux-image-lowlatency-hwe-22.04  6.8.0-51.52.1~22.04.1
   linux-image-oem-22.04           6.8.0-51.52~22.04.1
   linux-image-oem-22.04a          6.8.0-51.52~22.04.1
   linux-image-oem-22.04b          6.8.0-51.52~22.04.1
   linux-image-oem-22.04c          6.8.0-51.52~22.04.1
   linux-image-oem-22.04d          6.8.0-51.52~22.04.1
   linux-image-virtual-hwe-22.04   6.8.0-51.52~22.04.1

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-7167-2
   https://ubuntu.com/security/notices/USN-7167-1
   CVE-2024-49967, CVE-2024-50264, CVE-2024-53057

Package Information:
   https://launchpad.net/ubuntu/+source/linux-lowlatency/6.8.0-51.52.1
   https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-51.52~22.04.1
  
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-51.52.1~22.04.1