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Ubuntu 22.04: Linux Kernel Critical Update for GKE KVM Issues USN-7704-5

ubuntu
Calendar Grey August 28, 2025
Dist Ubuntu Esm H88
Numerous vulnerabilities patched in Linux core; make certain your Ubuntu is current to protect against potential risks.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-gke: Linux kernel for Google Container Engine (GKE) systems

- linux-kvm: Linux kernel for cloud environments

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;

- Arm Firmware Framework for ARMv8-A(FFA);

- Multiple devices driver;

- Media drivers;

- Network drivers;

- NVDIMM (Non-Volatile Memory Device) drivers;

- NVME drivers;

- x86 platform drivers;

- TCM subsystem;

- Virtio drivers;

- File systems infrastructure;

- SMB network file system;

- LZO compression library;

- Digital Audio (PCM) driver;

- Tracing infrastructure;

- Padata parallel execution mechanism;

- CAN network layer;

- Networking core;

- TIPC protocol;

- ALSA framework;

(CVE-2025-380...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical Ubuntu Linux kernel linux-gke linux-kvm

Update Instructions

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

Ubuntu 22.04 LTS
   linux-image-5.15.0-1086-kvm     5.15.0-1086.91
   linux-image-5.15.0-1087-gke     5.15.0-1087.93
   linux-image-gke                 5.15.0.1087.86
   linux-image-gke-5.15            5.15.0.1087.86
   linux-image-kvm                 5.15.0.1086.82
   linux-image-kvm-5.15            5.15.0.1086.82

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-7704-5

https://ubuntu.com/security/notices/USN-7704-4

https://ubuntu.com/security/notices/USN-7704-3

https://ubuntu.com/security/notices/USN-7704-2

https://ubuntu.com/security/notices/USN-7704-1

CVE-2025-38003, CVE-2025-38004, CVE-2025-38031, CVE-2025-38034,

CVE-2025-38035, CVE-2025-38037, CVE-2025-38043, CVE-2025-38044,

CVE-2025-38048, CVE-2025-38051, CVE-2025-38052, CVE-2025-38058,

CVE-2025-38061, CVE-2025-38065, CVE-2025-38066, CVE-2025-38068,

CVE-2025-38072, CVE-2025-38075, CVE-2025-38077, CVE-2025-38078,

CVE-2025-38079

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7704-5

Topics%20covered

Topics Covered

security advisory critical Ubuntu Linux kernel linux-gke linux-kvm

Package Information

https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1087.93
https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1086.91

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