==========================================================================
Ubuntu Security Notice USN-7704-4
August 21, 2025

linux-nvidia vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-nvidia: Linux kernel for NVIDIA 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;
  - 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-2025-38079, CVE-2025-38048, CVE-2025-38075, CVE-2025-38077,
CVE-2025-38035, CVE-2025-38037, CVE-2025-38034, CVE-2025-38058,
CVE-2025-38004, CVE-2025-38031, CVE-2025-38078, CVE-2025-38044,
CVE-2025-38066, CVE-2025-38052, CVE-2025-38043, CVE-2025-38065,
CVE-2025-38003, CVE-2025-38061, CVE-2025-38051, CVE-2025-38072,
CVE-2025-38068)

Update instructions:

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1085-nvidia  5.15.0-1085.86
  linux-image-5.15.0-1085-nvidia-lowlatency  5.15.0-1085.86
  linux-image-nvidia              5.15.0.1085.85
  linux-image-nvidia-5.15         5.15.0.1085.85
  linux-image-nvidia-lowlatency   5.15.0.1085.85
  linux-image-nvidia-lowlatency-5.15  5.15.0.1085.85

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-7704-4
  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

Package Information:
  https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1085.86