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[USN-8059-3] Linux kernel vulnerabilities

Posted on 25 February 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8059-3
February 25, 2026

linux-gcp, linux-gcp-6.8, linux-gke, linux-oracle-6.8 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-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) systems
- linux-gcp-6.8: Linux kernel for Google Cloud Platform (GCP) systems
- linux-oracle-6.8: Linux kernel for Oracle 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:
- SMB network file system;
(CVE-2025-22037, CVE-2025-37899)

Update instructions:

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

Ubuntu 24.04 LTS
linux-image-6.8.0-1044-gke 6.8.0-1044.49
linux-image-6.8.0-1044-gke-64k 6.8.0-1044.49
linux-image-6.8.0-1048-gcp 6.8.0-1048.51
linux-image-6.8.0-1048-gcp-64k 6.8.0-1048.51
linux-image-gcp-6.8 6.8.0-1048.51
linux-image-gcp-64k-6.8 6.8.0-1048.51
linux-image-gcp-64k-lts-24.04 6.8.0-1048.51
linux-image-gcp-lts-24.04 6.8.0-1048.51
linux-image-gke 6.8.0-1044.49
linux-image-gke-6.8 6.8.0-1044.49
linux-image-gke-64k 6.8.0-1044.49
linux-image-gke-64k-6.8 6.8.0-1044.49

Ubuntu 22.04 LTS
linux-image-6.8.0-1044-oracle 6.8.0-1044.45~22.04.1
linux-image-6.8.0-1044-oracle-64k 6.8.0-1044.45~22.04.1
linux-image-6.8.0-1048-gcp 6.8.0-1048.51~22.04.1
linux-image-6.8.0-1048-gcp-64k 6.8.0-1048.51~22.04.1
linux-image-gcp 6.8.0-1048.51~22.04.1
linux-image-gcp-6.8 6.8.0-1048.51~22.04.1
linux-image-gcp-64k 6.8.0-1048.51~22.04.1
linux-image-gcp-64k-6.8 6.8.0-1048.51~22.04.1
linux-image-oracle 6.8.0-1044.45~22.04.1
linux-image-oracle-6.8 6.8.0-1044.45~22.04.1
linux-image-oracle-64k 6.8.0-1044.45~22.04.1
linux-image-oracle-64k-6.8 6.8.0-1044.45~22.04.1

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-8059-3
https://ubuntu.com/security/notices/USN-8059-2
https://ubuntu.com/security/notices/USN-8059-1
CVE-2025-22037, CVE-2025-37899

Package Information:
https://launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1048.51
https://launchpad.net/ubuntu/+source/linux-gke/6.8.0-1044.49
https://launchpad.net/ubuntu/+source/linux-gcp-6.8/6.8.0-1048.51~22.04.1
https://launchpad.net/ubuntu/+source/linux-oracle-6.8/6.8.0-1044.45~22.04.1


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