=========================================================================
Ubuntu Security Notice USN-7494-3
May 06, 2025

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-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:
  - Network drivers;
  - Netfilter;
(CVE-2023-52664, CVE-2023-52927)

Update instructions:

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1076-intel-iot-realtime  5.15.0-1076.78
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1083-realtime  5.15.0-1083.92
                                  Available with Ubuntu Pro
  linux-image-intel-iot-realtime  5.15.0.1076.80
                                  Available with Ubuntu Pro
  linux-image-realtime            5.15.0.1083.87
                                  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-7494-3
  https://ubuntu.com/security/notices/USN-7494-2
  https://ubuntu.com/security/notices/USN-7494-1
  CVE-2023-52664, CVE-2023-52927

Package Information:
  https://launchpad.net/ubuntu/+source/linux-intel-iot-realtime/5.15.0-1076.78
  https://launchpad.net/ubuntu/+source/linux-realtime/5.15.0-1083.92