[USN-7402-4] Linux kernel vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-7402-4
April 07, 2025

linux-azure, linux-azure-6.8, linux-nvidia-lowlatency 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-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-nvidia-lowlatency: Linux low latency kernel for NVIDIA systems
- linux-azure-6.8: Linux kernel for Microsoft Azure cloud systems

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:
- Block layer subsystem;
- GPU drivers;
- HID subsystem;
- Media drivers;
- JFS file system;
- Network namespace;
- Networking core;
- Netlink;
(CVE-2024-57798, CVE-2024-53140, CVE-2024-56595, CVE-2024-56598,
CVE-2024-50302, CVE-2024-56658, CVE-2024-56672, CVE-2024-53063)

Update instructions:

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

Ubuntu 24.04 LTS
linux-image-6.8.0-1025-nvidia-lowlatency 6.8.0-1025.28.1
linux-image-6.8.0-1025-nvidia-lowlatency-64k 6.8.0-1025.28.1
linux-image-6.8.0-1026-azure 6.8.0-1026.31
linux-image-6.8.0-1026-azure-fde 6.8.0-1026.31
linux-image-azure-fde-lts-24.04 6.8.0-1026.31
linux-image-azure-lts-24.04 6.8.0-1026.31
linux-image-nvidia-lowlatency 6.8.0-1025.28.1
linux-image-nvidia-lowlatency-64k 6.8.0-1025.28.1

Ubuntu 22.04 LTS
linux-image-6.8.0-1026-azure 6.8.0-1026.31~22.04.1
linux-image-6.8.0-1026-azure-fde 6.8.0-1026.31~22.04.1
linux-image-azure 6.8.0-1026.31~22.04.1
linux-image-azure-fde 6.8.0-1026.31~22.04.1

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-7402-4
https://ubuntu.com/security/notices/USN-7402-3
https://ubuntu.com/security/notices/USN-7402-2
https://ubuntu.com/security/notices/USN-7402-1
CVE-2024-50302, CVE-2024-53063, CVE-2024-53140, CVE-2024-56595,
CVE-2024-56598, CVE-2024-56658, CVE-2024-56672, CVE-2024-57798

Package Information:
https://launchpad.net/ubuntu/+source/linux-azure/6.8.0-1026.31
https://launchpad.net/ubuntu/+source/linux-nvidia-lowlatency/6.8.0-1025.28.1
https://launchpad.net/ubuntu/+source/linux-azure-6.8/6.8.0-1026.31~22.04.1