USN-7703-2: Linux kernel vulnerabilities

USN-7703-2: Linux kernel vulnerabilities
Publication date: 20 August 2025
Overview: Several security issues were fixed in the Linux kernel.
Releases: 24.04 LTS , 22.04 LTS

Packages

• linux-aws-6.8 - Linux kernel for Amazon Web Services (AWS) systems
• linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gcp-6.8 - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
• linux-ibm - Linux kernel for IBM cloud systems
• linux-ibm-6.8 - Linux kernel for IBM 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:

• 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-6.8.0-1019-gkeop – 6.8.0-1019.21
• linux-image-6.8.0-1033-ibm – 6.8.0-1033.33
• linux-image-6.8.0-1036-gcp – 6.8.0-1036.38
• linux-image-6.8.0-1036-gcp-64k – 6.8.0-1036.38
• linux-image-gcp-6.8 – 6.8.0-1036.38
• linux-image-gcp-64k-6.8 – 6.8.0-1036.38
• linux-image-gcp-64k-lts-24.04 – 6.8.0-1036.38
• linux-image-gcp-lts-24.04 – 6.8.0-1036.38
• linux-image-gkeop – 6.8.0-1019.21
• linux-image-gkeop-6.8 – 6.8.0-1019.21
• linux-image-ibm – 6.8.0-1033.33
• linux-image-ibm-6.8 – 6.8.0-1033.33
• linux-image-ibm-classic – 6.8.0-1033.33
• linux-image-ibm-lts-24.04 – 6.8.0-1033.33

22.04 jammy

• linux-image-6.8.0-1033-ibm – 6.8.0-1033.33~22.04.1
• linux-image-6.8.0-1035-aws – 6.8.0-1035.37~22.04.1
• linux-image-6.8.0-1035-aws-64k – 6.8.0-1035.37~22.04.1
• linux-image-6.8.0-1036-gcp – 6.8.0-1036.38~22.04.1
• linux-image-6.8.0-1036-gcp-64k – 6.8.0-1036.38~22.04.1
• linux-image-aws – 6.8.0-1035.37~22.04.1
• linux-image-aws-6.8 – 6.8.0-1035.37~22.04.1
• linux-image-aws-64k – 6.8.0-1035.37~22.04.1
• linux-image-aws-64k-6.8 – 6.8.0-1035.37~22.04.1
• linux-image-gcp – 6.8.0-1036.38~22.04.1
• linux-image-gcp-6.8 – 6.8.0-1036.38~22.04.1
• linux-image-gcp-64k – 6.8.0-1036.38~22.04.1
• linux-image-gcp-64k-6.8 – 6.8.0-1036.38~22.04.1
• linux-image-ibm-6.8 – 6.8.0-1033.33~22.04.1