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Ubuntu 22.04: USN-7889-6 Linux Kernel Important Security Patch

ubuntu
Calendar Grey December 11, 2025
Dist Ubuntu Esm H88
Security issues fixed in Ubuntu's Linux kernel with risk of system compromise. Update to the latest version for safety.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-hwe-6.8: Linux hardware enablement (HWE) kernel

- linux-oracle-6.8: Linux kernel for Oracle Cloud 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:

- Media drivers;

- Network drivers;

- Netfilter;

- TLS protocol;

(CVE-2025-21729, CVE-2025-38227, CVE-2025-38616, CVE-2025-38678)

Topics%20covered

Topics Covered

security advisory Ubuntu important linux system compromise Linux kernel

Update Instructions

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

Ubuntu 22.04 LTS
   linux-image-6.8.0-1040-oracle   6.8.0-1040.41~22.04.1
   linux-image-6.8.0-1040-oracle-64k  6.8.0-1040.41~22.04.1
   linux-image-6.8.0-88-generic    6.8.0-88.89~22.04.2
   linux-image-6.8.0-88-generic-64k  6.8.0-88.89~22.04.2
   linux-image-generic-6.8         6.8.0-88.89~22.04.2
   linux-image-generic-64k-6.8     6.8.0-88.89~22.04.2
   linux-image-generic-64k-hwe-22.04  6.8.0-88.89~22.04.2
   linux-image-generic-hwe-22.04   6.8.0-88.89~22.04.2
   linux-image-oem-22.04           6.8.0-88.89~22.04.2
   linux-image-oem-22.04a          6.8.0-88.89~22.04.2
   linux-image-oem-22.04b          6.8.0-88.89~22.04.2
   linux-image-oem-22.04c          6.8.0-88.89~22.04.2
   linux-image-oem-22.04d          6.8.0-88.89~22.04.2
   linux-image-oracle              6.8.0-1040.41~22.04.1
   linux-image-oracle-6.8          6.8.0-1040.41~22.04.1
   linux-image-oracle-64k          6.8.0-1040.41~22.04.1
   linux-image-oracle-64k-6.8      6.8.0-1040.41~22.04.1
   linux-image-virtual-6.8         6.8.0-88.89~22.04.2
   linux-image-virtual-hwe-22.04   6.8.0-88.89~22.04.2

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-7889-6

https://ubuntu.com/security/notices/USN-7889-5

https://ubuntu.com/security/notices/USN-7889-4

https://ubuntu.com/security/notices/USN-7889-3

https://ubuntu.com/security/notices/USN-7889-2

https://ubuntu.com/security/notices/USN-7889-1

CVE-2025-21729, CVE-2025-38227, CVE-2025-38616, CVE-2025-38678

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7889-6

Topics%20covered

Topics Covered

security advisory Ubuntu important linux system compromise Linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-88.89~22.04.2
https://launchpad.net/ubuntu/+source/linux-oracle-6.8/6.8.0-1040.41~22.04.1

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