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[USN-9044-1] Linux kernel (NVIDIA BaseOS) vulnerabilities

Posted on 11 November 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-9044-1
November 11, 2026

linux-nvidia-bos vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-nvidia-bos: Linux kernel for NVIDIA BaseOS 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:
- Network drivers;
- IPv4 networking;
(CVE-2026-98239, CVE-2026-98432)

Update instructions:

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

Ubuntu 26.04 LTS
linux-image-7.0.0-2024-nvidia-bos 7.0.0-2024.25
linux-image-7.0.0-2024-nvidia-bos-64k 7.0.0-2024.25
linux-image-nvidia-64k-hwe-26.04 7.0.0-2024.25
linux-image-nvidia-bos 7.0.0-2024.25
linux-image-nvidia-bos-64k 7.0.0-2024.25
linux-image-nvidia-bos-64k-7.0 7.0.0-2024.25
linux-image-nvidia-bos-7.0 7.0.0-2024.25
linux-image-nvidia-hwe-26.04 7.0.0-2024.25

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-9044-1
CVE-2026-98239, CVE-2026-98432

Package Information:
https://launchpad.net/ubuntu/+source/linux-nvidia-bos/7.0.0-2024.25

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