1. Ubuntu Security Notices
  2. USN-7429-1

USN-7429-1: Linux kernel vulnerabilities

Publication date

9 April 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-kvm - Linux kernel for cloud environments
  • linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty

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:

  • Drivers core;
  • HID subsystem;
  • Network drivers;
  • SCSI subsystem;
  • SuperH / SH-Mobile drivers;
  • File systems infrastructure;
  • Ext4 file system;
  • JFS file system;
  • Network file system (NFS) client;
  • Memory management;
  • Network namespace;
  • CAIF protocol;
  • Networking core;
  • HSR network protocol;
  • IPv4 networking;
  • IPv6 networking;
  • MAC80211 subsystem;
  • Network traffic control

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:

  • Drivers core;
  • HID subsystem;
  • Network drivers;
  • SCSI subsystem;
  • SuperH / SH-Mobile drivers;
  • File systems infrastructure;
  • Ext4 file system;
  • JFS file system;
  • Network file system (NFS) client;
  • Memory management;
  • Network namespace;
  • CAIF protocol;
  • Networking core;
  • HSR network protocol;
  • IPv4 networking;
  • IPv6 networking;
  • MAC80211 subsystem;
  • Network traffic control

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release Package Version
16.04 xenial linux-image-4.4.0-1143-kvm –  4.4.0-1143.154  
linux-image-4.4.0-1180-aws –  4.4.0-1180.195  
linux-image-4.4.0-267-generic –  4.4.0-267.301  
linux-image-4.4.0-267-lowlatency –  4.4.0-267.301  
linux-image-aws –  4.4.0.1180.184  
linux-image-generic –  4.4.0.267.273  
linux-image-generic-lts-xenial –  4.4.0.267.273  
linux-image-kvm –  4.4.0.1143.140  
linux-image-lowlatency –  4.4.0.267.273  
linux-image-lowlatency-lts-xenial –  4.4.0.267.273  
linux-image-virtual –  4.4.0.267.273  
linux-image-virtual-lts-xenial –  4.4.0.267.273  
14.04 trusty linux-image-4.4.0-1142-aws –  4.4.0-1142.148  
linux-image-4.4.0-267-generic –  4.4.0-267.301~14.04.1  
linux-image-4.4.0-267-lowlatency –  4.4.0-267.301~14.04.1  
linux-image-aws –  4.4.0.1142.139  
linux-image-generic-lts-xenial –  4.4.0.267.301~14.04.1  
linux-image-lowlatency-lts-xenial –  4.4.0.267.301~14.04.1  
linux-image-virtual-lts-xenial –  4.4.0.267.301~14.04.1  

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References

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