==========================================================================
Ubuntu Security Notice USN-7829-2
October 20, 2025

linux-fips, linux-aws-fips, linux-azure-fips, linux-gcp-fips,
linux-intel-iot-realtime, linux-realtime 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-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS
- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS
- linux-fips: Linux kernel with FIPS
- linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with FIPS
- linux-intel-iot-realtime: Linux kernel for Intel IoT Real-time platforms
- linux-realtime: Linux kernel for Real-time 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:
  - GPU drivers;
  - Network drivers;
  - Netlink;
(CVE-2024-26700, CVE-2025-38727, CVE-2023-52593, CVE-2024-26896)

Update instructions:

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1087-intel-iot-realtime  5.15.0-1087.89
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1094-realtime  5.15.0-1094.103
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1095-aws-fips  5.15.0-1095.102+fips1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1095-gcp-fips  5.15.0-1095.104+fips1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1098-azure-fips  5.15.0-1098.107+fips1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-160-fips     5.15.0-160.170+fips1
                                  Available with Ubuntu Pro
  linux-image-aws-fips            5.15.0.1095.91
                                  Available with Ubuntu Pro
  linux-image-aws-fips-5.15       5.15.0.1095.91
                                  Available with Ubuntu Pro
  linux-image-azure-fips          5.15.0.1098.83
                                  Available with Ubuntu Pro
  linux-image-azure-fips-5.15     5.15.0.1098.83
                                  Available with Ubuntu Pro
  linux-image-fips                5.15.0.160.92
                                  Available with Ubuntu Pro
  linux-image-fips-5.15           5.15.0.160.92
                                  Available with Ubuntu Pro
  linux-image-gcp-fips            5.15.0.1095.85
                                  Available with Ubuntu Pro
  linux-image-gcp-fips-5.15       5.15.0.1095.85
                                  Available with Ubuntu Pro
  linux-image-intel-iot-realtime  5.15.0.1087.91
                                  Available with Ubuntu Pro
  linux-image-intel-iot-realtime-5.15  5.15.0.1087.91
                                  Available with Ubuntu Pro
  linux-image-realtime            5.15.0.1094.98
                                  Available with Ubuntu Pro
  linux-image-realtime-5.15       5.15.0.1094.98
                                  Available with Ubuntu Pro

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-7829-2
  https://ubuntu.com/security/notices/USN-7829-1
  CVE-2023-52593, CVE-2024-26700, CVE-2024-26896, CVE-2025-38727

Package Information:
  https://launchpad.net/ubuntu/+source/linux-aws-fips/5.15.0-1095.102+fips1
  https://launchpad.net/ubuntu/+source/linux-azure-fips/5.15.0-1098.107+fips1
  https://launchpad.net/ubuntu/+source/linux-fips/5.15.0-160.170+fips1
  https://launchpad.net/ubuntu/+source/linux-gcp-fips/5.15.0-1095.104+fips1
  https://launchpad.net/ubuntu/+source/linux-intel-iot-realtime/5.15.0-1087.89
  https://launchpad.net/ubuntu/+source/linux-realtime/5.15.0-1094.103

Attachment: OpenPGP_signature.asc
Description: OpenPGP digital signature

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