Ubuntu: Kernel Critical Network Issue USN-7681-1 CVE-2025-38083

ubuntu

July 30, 2025

A security issue was fixed in the Linux kernel.

Summary

A security issue was fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

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

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

- linux-raspi: Linux kernel for Raspberry Pi systems

- linux-realtime: Linux kernel for Real-time systems

- linux-aws-6.14: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp-6.14: Linux kernel for Google Cloud Platform (GCP) systems

- linux-hwe-6.14: Linux hardware enablement (HWE) kernel

- linux-oem-6.14: Linux kernel for OEM 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 traffic control;

(CVE-2025-38083)

Topics Covered

security advisory critical Ubuntu kernel linux network

Update Instructions

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

Ubuntu 25.04
  linux-image-6.14.0-1007-realtime  6.14.0-1007.7
  linux-image-6.14.0-1010-aws     6.14.0-1010.10
  linux-image-6.14.0-1010-aws-64k  6.14.0-1010.10
  linux-image-6.14.0-1010-raspi   6.14.0-1010.10
  linux-image-6.14.0-1012-gcp     6.14.0-1012.12
  linux-image-6.14.0-1012-gcp-64k  6.14.0-1012.12
  linux-image-6.14.0-27-generic   6.14.0-27.27
  linux-image-6.14.0-27-generic-64k  6.14.0-27.27
  linux-image-aws                 6.14.0-1010.10
  linux-image-aws-6.14            6.14.0-1010.10
  linux-image-aws-64k             6.14.0-1010.10
  linux-image-aws-64k-6.14        6.14.0-1010.10
  linux-image-gcp                 6.14.0-1012.12
  linux-image-gcp-6.14            6.14.0-1012.12
  linux-image-gcp-64k             6.14.0-1012.12
  linux-image-gcp-64k-6.14        6.14.0-1012.12
  linux-image-generic             6.14.0-27.27
  linux-image-generic-6.14        6.14.0-27.27
  linux-image-generic-64k         6.14.0-27.27
  linux-image-generic-64k-6.14    6.14.0-27.27
  linux-image-raspi               6.14.0-1010.10
  linux-image-raspi-6.14          6.14.0-1010.10
  linux-image-realtime            6.14.0-1007.7
  linux-image-realtime-6.14       6.14.0-1007.7
  linux-image-virtual             6.14.0-27.27
  linux-image-virtual-6.14        6.14.0-27.27

Ubuntu 24.04 LTS
  linux-image-6.14.0-1008-oem     6.14.0-1008.8
  linux-image-6.14.0-1010-aws     6.14.0-1010.10~24.04.1
  linux-image-6.14.0-1010-aws-64k  6.14.0-1010.10~24.04.1
  linux-image-6.14.0-1012-gcp     6.14.0-1012.12~24.04.1
  linux-image-6.14.0-1012-gcp-64k  6.14.0-1012.12~24.04.1
  linux-image-6.14.0-27-generic   6.14.0-27.27~24.04.1
  linux-image-6.14.0-27-generic-64k  6.14.0-27.27~24.04.1
  linux-image-aws                 6.14.0-1010.10~24.04.1
  linux-image-aws-6.14            6.14.0-1010.10~24.04.1
  linux-image-aws-64k             6.14.0-1010.10~24.04.1
  linux-image-aws-64k-6.14        6.14.0-1010.10~24.04.1
  linux-image-gcp                 6.14.0-1012.12~24.04.1
  linux-image-gcp-6.14            6.14.0-1012.12~24.04.1
  linux-image-gcp-64k             6.14.0-1012.12~24.04.1
  linux-image-gcp-64k-6.14        6.14.0-1012.12~24.04.1
  linux-image-generic-6.14        6.14.0-27.27~24.04.1
  linux-image-generic-64k-6.14    6.14.0-27.27~24.04.1
  linux-image-generic-64k-hwe-24.04  6.14.0-27.27~24.04.1
  linux-image-generic-hwe-24.04   6.14.0-27.27~24.04.1
  linux-image-oem-24.04c          6.14.0-1008.8
  linux-image-oem-6.14            6.14.0-1008.8
  linux-image-virtual-6.14        6.14.0-27.27~24.04.1
  linux-image-virtual-hwe-24.04   6.14.0-27.27~24.04.1

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.