[USN-8200-2] Linux kernel (FIPS) vulnerabilities

[Rodrigo Figueiredo Zaiden]

==========================================================================
Ubuntu Security Notice USN-8200-2
April 22, 2026

linux-fips, linux-aws-fips, linux-azure-fips, linux-gcp-fips
vulnerabilities
==========================================================================

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

- Ubuntu 20.04 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

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:
   - ARM64 architecture;
   - Cryptographic API;
   - GPU drivers;
   - I2C subsystem;
   - Network traffic control;
(CVE-2022-49046, CVE-2024-46816, CVE-2025-37849, CVE-2026-23060,
CVE-2026-23074)

Update instructions:

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1131-fips     5.4.0-1131.141
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1157-aws-fips  5.4.0-1157.167+fips1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1160-gcp-fips  5.4.0-1160.169+fips1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1161-azure-fips  5.4.0-1161.167+fips1
                                   Available with Ubuntu Pro
   linux-image-aws-fips            5.4.0.1157.104
                                   Available with Ubuntu Pro
   linux-image-aws-fips-5.4        5.4.0.1157.104
                                   Available with Ubuntu Pro
   linux-image-azure-fips          5.4.0.1161.97
                                   Available with Ubuntu Pro
   linux-image-azure-fips-5.4      5.4.0.1161.97
                                   Available with Ubuntu Pro
   linux-image-fips                5.4.0.1131.128
                                   Available with Ubuntu Pro
   linux-image-fips-5.4            5.4.0.1131.128
                                   Available with Ubuntu Pro
   linux-image-gcp-fips            5.4.0.1160.102
                                   Available with Ubuntu Pro
   linux-image-gcp-fips-5.4        5.4.0.1160.102
                                   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-8200-2
   https://ubuntu.com/security/notices/USN-8200-1
   CVE-2022-49046, CVE-2024-46816, CVE-2025-37849, CVE-2026-23060,
   CVE-2026-23074
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