Update08/23/2025

USN-7703-1: Linux kernel vulnerabilities

Ubuntu Desktop
Canonical

USN-7703-1: Linux kernel vulnerabilities
Publication date: 19 August 2025
Overview: Several security issues were fixed in the Linux kernel.
Releases: 25.04 ,24.04 LTS

Packages

linux - Linux kernel
linux-aws - Linux kernel for Amazon Web Services (AWS) systems
linux-lowlatency - Linux low latency kernel
linux-lowlatency-hwe-6.8 - Linux low latency kernel
linux-realtime - Linux kernel for Real-time 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:

ARM64 architecture;
PowerPC architecture;
x86 architecture;
Block layer subsystem;
GPIO subsystem;
GPU drivers;
HID subsystem;
Input Device (Mouse) drivers;
Multiple devices driver;
Media drivers;
Network drivers;
PCI subsystem;
S/390 drivers;
SPI subsystem;
Trusted Execution Environment drivers;
UFS subsystem;
USB Device Class drivers;
USB core drivers;
USB Gadget drivers;
Framebuffer layer;
Network file system (NFS) client;
Network file system (NFS) server daemon;
File systems infrastructure;
SMB network file system;
Networking core;
L3 Master device support module;
TCP network protocol;
io_uring subsystem;
Process Accounting mechanism;
BPF subsystem;
Timer subsystem;
Workqueue subsystem;
Memory management;
Amateur Radio drivers;
B.A.T.M.A.N. meshing protocol;
IPv4 networking;
IPv6 networking;
Multipath TCP;
Open vSwitch;
Network traffic control;
SOF drivers

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

24.04 noble

linux-image-6.8.0-1035-aws – 6.8.0-1035.37
linux-image-6.8.0-1035-aws-64k – 6.8.0-1035.37
linux-image-6.8.0-78-generic – 6.8.0-78.78
linux-image-6.8.0-78-generic-64k – 6.8.0-78.78
linux-image-6.8.0-78-lowlatency – 6.8.0-78.78.1
linux-image-6.8.0-78-lowlatency-64k – 6.8.0-78.78.1
linux-image-6.8.1-1030-realtime – 6.8.1-1030.31
linux-image-aws-6.8 – 6.8.0-1035.37
linux-image-aws-64k-6.8 – 6.8.0-1035.37
linux-image-aws-64k-lts-24.04 – 6.8.0-1035.37
linux-image-aws-lts-24.04 – 6.8.0-1035.37
linux-image-generic – 6.8.0-78.78
linux-image-generic-6.8 – 6.8.0-78.78
linux-image-generic-64k – 6.8.0-78.78
linux-image-generic-64k-6.8 – 6.8.0-78.78
linux-image-generic-lpae – 6.8.0-78.78
linux-image-kvm – 6.8.0-78.78
linux-image-lowlatency – 6.8.0-78.78.1
linux-image-lowlatency-6.8 – 6.8.0-78.78.1
linux-image-lowlatency-64k – 6.8.0-78.78.1
linux-image-lowlatency-64k-6.8 – 6.8.0-78.78.1
linux-image-realtime – 6.8.1-1030.31
linux-image-realtime-6.8.1 – 6.8.1-1030.31
linux-image-virtual – 6.8.0-78.78
linux-image-virtual-6.8 – 6.8.0-78.78

22.04 jammy

linux-image-6.8.0-78-lowlatency – 6.8.0-78.78.1~22.04.1
linux-image-6.8.0-78-lowlatency-64k – 6.8.0-78.78.1~22.04.1
linux-image-lowlatency-6.8 – 6.8.0-78.78.1~22.04.1
linux-image-lowlatency-64k-6.8 – 6.8.0-78.78.1~22.04.1
linux-image-lowlatency-64k-hwe-22.04 – 6.8.0-78.78.1~22.04.1
linux-image-lowlatency-hwe-22.04 – 6.8.0-78.78.1~22.04.1