Ubuntu 22.04 24.04 Linux Kernel Security Advisory USN-8015-4

ubuntu

February 11, 2026

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems

- linux-ibm: Linux kernel for IBM cloud systems

- linux-aws-6.8: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp-6.8: Linux kernel for Google Cloud Platform (GCP) systems

- linux-ibm-6.8: Linux kernel for IBM cloud systems

- linux-lowlatency-hwe-6.8: Linux low latency kernel

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:

- Cryptographic API;

- SMB network file system;

- io_uring subsystem;

(CVE-2025-38561, CVE-2025-39698, CVE-2025-40019)

Topics Covered

security advisory security issue Ubuntu kernel system update linux

Update Instructions

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

Ubuntu 24.04 LTS
   linux-image-6.8.0-1043-ibm      6.8.0-1043.43
   linux-image-6.8.0-1045-aws      6.8.0-1045.47
   linux-image-6.8.0-1045-aws-64k  6.8.0-1045.47
   linux-image-6.8.0-1046-gcp      6.8.0-1046.49
   linux-image-6.8.0-1046-gcp-64k  6.8.0-1046.49
   linux-image-aws-6.8             6.8.0-1045.47
   linux-image-aws-64k-6.8         6.8.0-1045.47
   linux-image-aws-64k-lts-24.04   6.8.0-1045.47
   linux-image-aws-lts-24.04       6.8.0-1045.47
   linux-image-gcp-6.8             6.8.0-1046.49
   linux-image-gcp-64k-6.8         6.8.0-1046.49
   linux-image-gcp-64k-lts-24.04   6.8.0-1046.49
   linux-image-gcp-lts-24.04       6.8.0-1046.49
   linux-image-ibm                 6.8.0-1043.43
   linux-image-ibm-6.8             6.8.0-1043.43
   linux-image-ibm-classic         6.8.0-1043.43
   linux-image-ibm-lts-24.04       6.8.0-1043.43

Ubuntu 22.04 LTS
   linux-image-6.8.0-1043-ibm      6.8.0-1043.43~22.04.1
   linux-image-6.8.0-1045-aws      6.8.0-1045.47~22.04.1
   linux-image-6.8.0-1045-aws-64k  6.8.0-1045.47~22.04.1
   linux-image-6.8.0-1046-gcp      6.8.0-1046.49~22.04.1
   linux-image-6.8.0-1046-gcp-64k  6.8.0-1046.49~22.04.1
   linux-image-6.8.0-94-lowlatency  6.8.0-94.96.1~22.04.1
   linux-image-6.8.0-94-lowlatency-64k  6.8.0-94.96.1~22.04.1
   linux-image-aws                 6.8.0-1045.47~22.04.1
   linux-image-aws-6.8             6.8.0-1045.47~22.04.1
   linux-image-aws-64k             6.8.0-1045.47~22.04.1
   linux-image-aws-64k-6.8         6.8.0-1045.47~22.04.1
   linux-image-gcp                 6.8.0-1046.49~22.04.1
   linux-image-gcp-6.8             6.8.0-1046.49~22.04.1
   linux-image-gcp-64k             6.8.0-1046.49~22.04.1
   linux-image-gcp-64k-6.8         6.8.0-1046.49~22.04.1
   linux-image-ibm-6.8             6.8.0-1043.43~22.04.1
   linux-image-lowlatency-6.8      6.8.0-94.96.1~22.04.1
   linux-image-lowlatency-64k-6.8  6.8.0-94.96.1~22.04.1
   linux-image-lowlatency-64k-hwe-22.04  6.8.0-94.96.1~22.04.1
   linux-image-lowlatency-hwe-22.04  6.8.0-94.96.1~22.04.1

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.