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Ubuntu 22.04 LTS: USN-7928-5 Linux Kernel KVM Security Fixes

ubuntu
Calendar Grey January 9, 2026
Dist Ubuntu Esm H88
Several security issues were fixed in the Ubuntu Linux kernel KVM, requiring updates to prevent system compromise.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- 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;

- Media drivers;

- Network drivers;

- AFS file system;

- F2FS file system;

- Tracing infrastructure;

- Netfilter;

(CVE-2022-49390, CVE-2024-47691, CVE-2024-50067, CVE-2024-53090,

CVE-2024-53218, CVE-2025-21855, CVE-2025-39964, CVE-2025-39993,

CVE-2025-40018)

Topics%20covered

Topics Covered

security advisory Ubuntu system compromise Linux kernel KVM several

Update Instructions

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

Ubuntu 22.04 LTS
   linux-image-5.15.0-1090-kvm     5.15.0-1090.95
   linux-image-kvm                 5.15.0.1090.86
   linux-image-kvm-5.15            5.15.0.1090.86

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-7928-5

https://ubuntu.com/security/notices/USN-7928-4

https://ubuntu.com/security/notices/USN-7928-3

https://ubuntu.com/security/notices/USN-7928-2

https://ubuntu.com/security/notices/USN-7928-1

CVE-2022-49390, CVE-2024-47691, CVE-2024-50067, CVE-2024-53090,

CVE-2024-53218, CVE-2025-21855, CVE-2025-39964, CVE-2025-39993,

CVE-2025-40018

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7928-5

Topics%20covered

Topics Covered

security advisory Ubuntu system compromise Linux kernel KVM several

Package Information

https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1090.95

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