1. Ubuntu Security Notices
  2. USN-7795-1

USN-7795-1: Linux kernel vulnerabilities

Publication date

2 October 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

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:

  • Ext4 file system;
  • Network file system (NFS) server daemon;
  • Packet sockets;
  • Network traffic control;
  • VMware vSockets driver

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:

  • Ext4 file system;
  • Network file system (NFS) server daemon;
  • Packet sockets;
  • Network traffic control;
  • VMware vSockets driver

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
20.04 focal linux-image-5.4.0-1055-iot –  5.4.0-1055.58  
linux-image-5.4.0-1069-xilinx-zynqmp –  5.4.0-1069.73  
linux-image-5.4.0-1097-ibm –  5.4.0-1097.102  
linux-image-5.4.0-1110-bluefield –  5.4.0-1110.117  
linux-image-5.4.0-1134-raspi –  5.4.0-1134.147  
linux-image-5.4.0-1138-kvm –  5.4.0-1138.147  
linux-image-5.4.0-1151-aws –  5.4.0-1151.161  
linux-image-5.4.0-1154-gcp –  5.4.0-1154.163  
linux-image-5.4.0-222-generic –  5.4.0-222.242  
linux-image-5.4.0-222-generic-lpae –  5.4.0-222.242  
linux-image-5.4.0-222-lowlatency –  5.4.0-222.242  
linux-image-aws-5.4 –  5.4.0.1151.148  
linux-image-aws-lts-20.04 –  5.4.0.1151.148  
linux-image-bluefield –  5.4.0.1110.106  
linux-image-bluefield-5.4 –  5.4.0.1110.106  
linux-image-gcp-5.4 –  5.4.0.1154.156  
linux-image-gcp-lts-20.04 –  5.4.0.1154.156  
linux-image-generic –  5.4.0.222.214  
linux-image-generic-5.4 –  5.4.0.222.214  
linux-image-generic-lpae –  5.4.0.222.214  
linux-image-generic-lpae-5.4 –  5.4.0.222.214  
linux-image-ibm-5.4 –  5.4.0.1097.126  
linux-image-ibm-lts-20.04 –  5.4.0.1097.126  
linux-image-kvm –  5.4.0.1138.134  
linux-image-kvm-5.4 –  5.4.0.1138.134  
linux-image-lowlatency –  5.4.0.222.214  
linux-image-lowlatency-5.4 –  5.4.0.222.214  
linux-image-oem –  5.4.0.222.214  
linux-image-oem-osp1 –  5.4.0.222.214  
linux-image-raspi –  5.4.0.1134.165  
linux-image-raspi-5.4 –  5.4.0.1134.165  
linux-image-raspi2 –  5.4.0.1134.165  
linux-image-virtual –  5.4.0.222.214  
linux-image-virtual-5.4 –  5.4.0.222.214  
linux-image-xilinx-zynqmp –  5.4.0.1069.69  
linux-image-xilinx-zynqmp-5.4 –  5.4.0.1069.69  
18.04 bionic linux-image-5.4.0-1097-ibm –  5.4.0-1097.102~18.04.1  
linux-image-5.4.0-1151-aws –  5.4.0-1151.161~18.04.1  
linux-image-5.4.0-1154-gcp –  5.4.0-1154.163~18.04.1  
linux-image-5.4.0-222-generic –  5.4.0-222.242~18.04.1  
linux-image-5.4.0-222-lowlatency –  5.4.0-222.242~18.04.1  
linux-image-aws –  5.4.0.1151.161~18.04.1  
linux-image-aws-5.4 –  5.4.0.1151.161~18.04.1  
linux-image-gcp –  5.4.0.1154.163~18.04.1  
linux-image-gcp-5.4 –  5.4.0.1154.163~18.04.1  
linux-image-generic-5.4 –  5.4.0.222.242~18.04.1  
linux-image-generic-hwe-18.04 –  5.4.0.222.242~18.04.1  
linux-image-ibm –  5.4.0.1097.102~18.04.1  
linux-image-ibm-5.4 –  5.4.0.1097.102~18.04.1  
linux-image-lowlatency-5.4 –  5.4.0.222.242~18.04.1  
linux-image-lowlatency-hwe-18.04 –  5.4.0.222.242~18.04.1  
linux-image-oem –  5.4.0.222.242~18.04.1  
linux-image-oem-osp1 –  5.4.0.222.242~18.04.1  
linux-image-snapdragon-5.4 –  5.4.0.222.242~18.04.1  
linux-image-snapdragon-hwe-18.04 –  5.4.0.222.242~18.04.1  
linux-image-virtual-5.4 –  5.4.0.222.242~18.04.1  
linux-image-virtual-hwe-18.04 –  5.4.0.222.242~18.04.1  

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References

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