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Ubuntu 22.04 LTS USN-8164-1 Linux-Intel-IoT Real-time Critical Flaws

ubuntu
Calendar Grey April 9, 2026
Dist Ubuntu Esm H88
Several security issues in the Linux kernel for Ubuntu 22.04 LTS were addressed, requiring critical attention and updates.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-intel-iot-realtime: Linux kernel for Intel IoT Real-time platforms

Details:

Qualys discovered that several vulnerabilities existed in the AppArmor

Linux kernel Security Module (LSM). An unprivileged local attacker could

use these issues to load, replace, and remove arbitrary AppArmor profiles

causing denial of service, exposure of sensitive information (kernel

memory), local privilege escalation, or possibly escape a container.

(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,

CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,

CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)

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:

- ARM64 architecture;

- Cryptographic API;

- Netfilter;

- Network traffic control;

(CVE-202...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu linux-intel-iot-realtime

Update Instructions

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

Ubuntu 22.04 LTS
   linux-image-5.15.0-1096-intel-iot-realtime  5.15.0-1096.98
                                   Available with Ubuntu Pro
   linux-image-intel-iot-realtime  5.15.0.1096.100
                                   Available with Ubuntu Pro
   linux-image-intel-iot-realtime-5.15  5.15.0.1096.100
                                   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-8164-1

https://launchpad.net/bugs/2143853

CVE-2025-37849, CVE-2026-23060, CVE-2026-23074, CVE-2026-23111,

CVE-2026-23268, CVE-2026-23269, CVE-2026-23403, CVE-2026-23404,

CVE-2026-23405, CVE-2026-23406, CVE-2026-23407, CVE-2026-23408,

CVE-2026-23409, CVE-2026-23410, CVE-2026-23411

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8164-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu linux-intel-iot-realtime

Package Information

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