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Ubuntu 25.10 Kernel Critical Flaws USN-8149-2 CVE-2026-23060 DoS

ubuntu
Calendar Grey April 8, 2026
Dist Ubuntu Esm H88
Critical security issues in Ubuntu Linux kernel fixed to prevent system compromise; details on necessary updates provided.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-raspi: Linux kernel for Raspberry Pi systems

- linux-oracle-6.17: 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:

- Cryptographic API;

- Netfilter;

- Network traffic control;

(CVE-2026-23060, CVE-2026-23074, CVE-2026-23111)

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise linux-raspi linux-oracle

Update Instructions

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

Ubuntu 25.10
   linux-image-6.17.0-1010-oracle  6.17.0-1010.10
   linux-image-6.17.0-1010-oracle-64k  6.17.0-1010.10
   linux-image-6.17.0-1011-raspi   6.17.0-1011.11
   linux-image-oracle              6.17.0-1010.10
   linux-image-oracle-6.17         6.17.0-1010.10
   linux-image-oracle-64k          6.17.0-1010.10
   linux-image-oracle-64k-6.17     6.17.0-1010.10
   linux-image-raspi               6.17.0-1011.11
   linux-image-raspi-6.17          6.17.0-1011.11

Ubuntu 24.04 LTS
   linux-image-6.17.0-1010-oracle  6.17.0-1010.10~24.04.1
   linux-image-6.17.0-1010-oracle-64k  6.17.0-1010.10~24.04.1
   linux-image-oracle              6.17.0-1010.10~24.04.1
   linux-image-oracle-6.17         6.17.0-1010.10~24.04.1
   linux-image-oracle-64k          6.17.0-1010.10~24.04.1
   linux-image-oracle-64k-6.17     6.17.0-1010.10~24.04.1

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.

References

https://ubuntu.com/security/notices/USN-8149-2

https://ubuntu.com/security/notices/USN-8149-1

CVE-2026-23060, CVE-2026-23074, CVE-2026-23111

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8149-2

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise linux-raspi linux-oracle

Package Information

https://launchpad.net/ubuntu/+source/linux-oracle/6.17.0-1010.10
https://launchpad.net/ubuntu/+source/linux-raspi/6.17.0-1011.11
https://launchpad.net/ubuntu/+source/linux-oracle-6.17/6.17.0-1010.10~24.04.1

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