==========================================================================
Ubuntu Security Notice USN-7755-1
September 17, 2025

linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp,
linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure-4.15: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe: Linux hardware enablement (HWE) 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:
   - Media drivers;
   - SPI subsystem;
   - USB core drivers;
   - NILFS2 file system;
   - IPv6 networking;
   - Network traffic control;
(CVE-2024-53130, CVE-2025-38350, CVE-2024-50202, CVE-2024-47685,
CVE-2025-37752, CVE-2024-50051, CVE-2024-57996, CVE-2023-52477,
CVE-2024-27074, CVE-2024-53131)

Update instructions:

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

Ubuntu 18.04 LTS
   linux-image-4.15.0-1146-oracle  4.15.0-1146.157
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1167-kvm     4.15.0-1167.172
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1177-gcp     4.15.0-1177.194
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1184-aws     4.15.0-1184.197
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1192-azure   4.15.0-1192.207
                                   Available with Ubuntu Pro
   linux-image-4.15.0-241-generic  4.15.0-241.253
                                   Available with Ubuntu Pro
   linux-image-4.15.0-241-lowlatency  4.15.0-241.253
                                   Available with Ubuntu Pro
   linux-image-aws-4.15            4.15.0.1184.182
                                   Available with Ubuntu Pro
   linux-image-aws-lts-18.04       4.15.0.1184.182
                                   Available with Ubuntu Pro
   linux-image-azure-4.15          4.15.0.1192.160
                                   Available with Ubuntu Pro
   linux-image-azure-lts-18.04     4.15.0.1192.160
                                   Available with Ubuntu Pro
   linux-image-gcp-4.15            4.15.0.1177.190
                                   Available with Ubuntu Pro
   linux-image-gcp-lts-18.04       4.15.0.1177.190
                                   Available with Ubuntu Pro
   linux-image-generic             4.15.0.241.225
                                   Available with Ubuntu Pro
   linux-image-kvm                 4.15.0.1167.158
                                   Available with Ubuntu Pro
   linux-image-lowlatency          4.15.0.241.225
                                   Available with Ubuntu Pro
   linux-image-oracle-4.15         4.15.0.1146.151
                                   Available with Ubuntu Pro
   linux-image-oracle-lts-18.04    4.15.0.1146.151
                                   Available with Ubuntu Pro
   linux-image-virtual             4.15.0.241.225
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   linux-image-4.15.0-1177-gcp     4.15.0-1177.194~16.04.1
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1184-aws     4.15.0-1184.197~16.04.1
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1192-azure   4.15.0-1192.207~16.04.1
                                   Available with Ubuntu Pro
   linux-image-4.15.0-241-generic  4.15.0-241.253~16.04.1
                                   Available with Ubuntu Pro
   linux-image-4.15.0-241-lowlatency  4.15.0-241.253~16.04.1
                                   Available with Ubuntu Pro
   linux-image-aws-hwe             4.15.0.1184.197~16.04.1
                                   Available with Ubuntu Pro
   linux-image-azure               4.15.0.1192.207~16.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp                 4.15.0.1177.194~16.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-hwe-16.04   4.15.0.241.253~16.04.1
                                   Available with Ubuntu Pro
   linux-image-gke                 4.15.0.1177.194~16.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-hwe-16.04  4.15.0.241.253~16.04.1
                                   Available with Ubuntu Pro
   linux-image-oem                 4.15.0.241.253~16.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-hwe-16.04   4.15.0.241.253~16.04.1
                                   Available with Ubuntu Pro

Ubuntu 14.04 LTS
   linux-image-4.15.0-1192-azure   4.15.0-1192.207~14.04.1
                                   Available with Ubuntu Pro
   linux-image-azure               4.15.0.1192.207~14.04.1
                                   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-7755-1
   CVE-2023-52477, CVE-2024-27074, CVE-2024-47685, CVE-2024-50051,
   CVE-2024-50202, CVE-2024-53130, CVE-2024-53131, CVE-2024-57996,
   CVE-2025-37752, CVE-2025-38350