USN-8148-3: Linux kernel (Real-time) vulnerabilities

USN-8148-3: Linux kernel (Real-time) vulnerabilities

Publication date: 2 April 2026
Overview: Several security issues were fixed in the Linux kernel.

Packages

• linux-raspi-realtime - Linux kernel for Raspberry Pi Real-time systems
• linux-realtime - Linux kernel for Real-time systems
• linux-realtime-6.8 - 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:

• Cryptographic API;
• Netfilter;
• Network traffic control

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

24.04 LTS noble

• linux-image-6.8.0-2041-raspi-realtime – 6.8.0-2041.42
• linux-image-6.8.1-1046-realtime – 6.8.1-1046.47
• linux-image-intel-iot-realtime – 6.8.1-1046.47
• linux-image-raspi-realtime – 6.8.0-2041.42
• linux-image-raspi-realtime-6.8 – 6.8.0-2041.42
• linux-image-realtime – 6.8.1-1046.47
• linux-image-realtime-6.8.1 – 6.8.1-1046.47

22.04 LTS jammy

• linux-image-6.8.1-1046-realtime – 6.8.1-1046.47~22.04.2
• linux-image-realtime-6.8.1 – 6.8.1-1046.47~22.04.2
• linux-image-realtime-hwe-22.04 – 6.8.1-1046.47~22.04.2