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Ubuntu 20.04 LTS: USN-7922-1 Linux Kernel Important Security Issues

Calendar Dec 10, 2025 • User Avatar LinuxSecurity Advisories
4 - 7 min read
Ubuntu Large Esm H500
Topics%20covered

Topics Covered

security advisory Ubuntu important security issues system compromise Linux kernel
Several security issues were fixed in the Linux kernel. 
==========================================================================
Ubuntu Security Notice USN-7922-1
December 10, 2025

linux, linux-aws, linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4,
linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-xilinx-zynqmp
vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-ibm: Linux kernel for IBM cloud systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors
- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe-5.4: Linux hardware enablement (HWE) kernel
- linux-ibm-5.4: 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:
   - Cryptographic API;
   - ACPI drivers;
   - InfiniBand drivers;
   - Media drivers;
   - Network drivers;
   - Pin controllers subsystem;
   - AFS file system;
   - F2FS file system;
   - Tracing infrastructure;
   - Memory management;
   - Appletalk network protocol;
   - Netfilter;
(CVE-2022-49026, CVE-2022-49390, CVE-2024-47691, CVE-2024-49935,
CVE-2024-50067, CVE-2024-50095, CVE-2024-50196, CVE-2024-53090,
CVE-2024-53218, CVE-2025-21855, CVE-2025-37958, CVE-2025-38666,
CVE-2025-39964, CVE-2025-39993, CVE-2025-40018)

Update instructions:

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1071-xilinx-zynqmp  5.4.0-1071.75
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1099-ibm      5.4.0-1099.104
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1140-kvm      5.4.0-1140.149
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1151-oracle   5.4.0-1151.161
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1153-aws      5.4.0-1153.163
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1156-gcp      5.4.0-1156.165
                                   Available with Ubuntu Pro
   linux-image-5.4.0-224-generic   5.4.0-224.244
                                   Available with Ubuntu Pro
   linux-image-5.4.0-224-generic-lpae  5.4.0-224.244
                                   Available with Ubuntu Pro
   linux-image-5.4.0-224-lowlatency  5.4.0-224.244
                                   Available with Ubuntu Pro
   linux-image-aws-5.4             5.4.0.1153.150
                                   Available with Ubuntu Pro
   linux-image-aws-lts-20.04       5.4.0.1153.150
                                   Available with Ubuntu Pro
   linux-image-gcp-5.4             5.4.0.1156.158
                                   Available with Ubuntu Pro
   linux-image-gcp-lts-20.04       5.4.0.1156.158
                                   Available with Ubuntu Pro
   linux-image-generic             5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-generic-5.4         5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-generic-hwe-18.04   5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-generic-lpae        5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-generic-lpae-5.4    5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-generic-lpae-hwe-18.04  5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-ibm-5.4             5.4.0.1099.128
                                   Available with Ubuntu Pro
   linux-image-ibm-lts-20.04       5.4.0.1099.128
                                   Available with Ubuntu Pro
   linux-image-kvm                 5.4.0.1140.136
                                   Available with Ubuntu Pro
   linux-image-kvm-5.4             5.4.0.1140.136
                                   Available with Ubuntu Pro
   linux-image-lowlatency          5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-lowlatency-5.4      5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-lowlatency-hwe-18.04  5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-oem                 5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-oem-osp1            5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-oracle-5.4          5.4.0.1151.145
                                   Available with Ubuntu Pro
   linux-image-oracle-lts-20.04    5.4.0.1151.145
                                   Available with Ubuntu Pro
   linux-image-virtual             5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-virtual-5.4         5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-virtual-hwe-18.04   5.4.0.224.216
                                   Available with Ubuntu Pro
   linux-image-xilinx-zynqmp       5.4.0.1071.71
                                   Available with Ubuntu Pro
   linux-image-xilinx-zynqmp-5.4   5.4.0.1071.71
                                   Available with Ubuntu Pro

Ubuntu 18.04 LTS
   linux-image-5.4.0-1099-ibm      5.4.0-1099.104~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1153-aws      5.4.0-1153.163~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1156-gcp      5.4.0-1156.165~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-224-generic   5.4.0-224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-224-lowlatency  5.4.0-224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 5.4.0.1153.163~18.04.1
                                   Available with Ubuntu Pro
   linux-image-aws-5.4             5.4.0.1153.163~18.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp                 5.4.0.1156.165~18.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp-5.4             5.4.0.1156.165~18.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-5.4         5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-hwe-18.04   5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-ibm                 5.4.0.1099.104~18.04.1
                                   Available with Ubuntu Pro
   linux-image-ibm-5.4             5.4.0.1099.104~18.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-5.4      5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-hwe-18.04  5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-oem                 5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-osp1            5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-snapdragon-5.4      5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-snapdragon-hwe-18.04  5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-5.4         5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-hwe-18.04   5.4.0.224.244~18.04.1
                                   Available with Ubuntu Pro

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

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.

References:
   https://ubuntu.com/security/notices/USN-7922-1
   CVE-2022-49026, CVE-2022-49390, CVE-2024-47691, CVE-2024-49935,
   CVE-2024-50067, CVE-2024-50095, CVE-2024-50196, CVE-2024-53090,
   CVE-2024-53218, CVE-2025-21855, CVE-2025-37958, CVE-2025-38666,
   CVE-2025-39964, CVE-2025-39993, CVE-2025-40018

Ubuntu 20.04 LTS: USN-7922-1 Linux Kernel Important Security Issues

ubuntu
Calendar Grey December 10, 2025
Dist Ubuntu Esm H88
Urgent kernels update for Ubuntu addressing multiple security issues. Reboot necessary after applying.
Several security issues were fixed in the Linux kernel.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors - linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe-5.4: Linux hardware enablement (HWE) kernel - linux-ibm-5.4: 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...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory Ubuntu important security issues system compromise Linux kernel

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS linux-image-5.4.0-1071-xilinx-zynqmp 5.4.0-1071.75 Available with Ubuntu Pro linux-image-5.4.0-1099-ibm 5.4.0-1099.104 Available with Ubuntu Pro linux-image-5.4.0-1140-kvm 5.4.0-1140.149 Available with Ubuntu Pro linux-image-5.4.0-1151-oracle 5.4.0-1151.161 Available with Ubuntu Pro linux-image-5.4.0-1153-aws 5.4.0-1153.163 Available with Ubuntu Pro linux-image-5.4.0-1156-gcp 5.4.0-1156.165 Available with Ubuntu Pro linux-image-5.4.0-224-generic 5.4.0-224.244 Available with Ubuntu Pro linux-image-5.4.0-224-generic-lpae 5.4.0-224.244 Available with Ubuntu Pro linux-image-5.4.0-224-lowlatency 5.4.0-224.244 Available with Ubuntu Pro linux-image-aws-5.4 5.4.0.1153.150 Available with Ubuntu Pro linux-image-aws-lts-20.04 5.4.0.1153.150 Available with Ubuntu Pro linux-image-gcp-5.4 5.4.0.1156.158 Available with Ubuntu Pro linux-image-gcp-lts-20.04 5.4.0.1156.158 Available with Ubuntu Pro linux-image-generic 5.4.0.224.216 Available with Ubuntu Pro linux-image-generic-5.4 5.4.0.224.216 Available with Ubuntu Pro linux-image-generic-hwe-18.04 5.4.0.224.216 Available with Ubuntu Pro linux-image-generic-lpae 5.4.0.224.216 Available with Ubuntu Pro linux-image-generic-lpae-5.4 5.4.0.224.216 Available with Ubuntu Pro linux-image-generic-lpae-hwe-18.04 5.4.0.224.216 Available with Ubuntu Pro linux-image-ibm-5.4 5.4.0.1099.128 Available with Ubuntu Pro linux-image-ibm-lts-20.04 5.4.0.1099.128 Available with Ubuntu Pro linux-image-kvm 5.4.0.1140.136 Available with Ubuntu Pro linux-image-kvm-5.4 5.4.0.1140.136 Available with Ubuntu Pro linux-image-lowlatency 5.4.0.224.216 Available with Ubuntu Pro linux-image-lowlatency-5.4 5.4.0.224.216 Available with Ubuntu Pro linux-image-lowlatency-hwe-18.04 5.4.0.224.216 Available with Ubuntu Pro linux-image-oem 5.4.0.224.216 Available with Ubuntu Pro linux-image-oem-osp1 5.4.0.224.216 Available with Ubuntu Pro linux-image-oracle-5.4 5.4.0.1151.145 Available with Ubuntu Pro linux-image-oracle-lts-20.04 5.4.0.1151.145 Available with Ubuntu Pro linux-image-virtual 5.4.0.224.216 Available with Ubuntu Pro linux-image-virtual-5.4 5.4.0.224.216 Available with Ubuntu Pro linux-image-virtual-hwe-18.04 5.4.0.224.216 Available with Ubuntu Pro linux-image-xilinx-zynqmp 5.4.0.1071.71 Available with Ubuntu Pro linux-image-xilinx-zynqmp-5.4 5.4.0.1071.71 Available with Ubuntu Pro Ubuntu 18.04 LTS linux-image-5.4.0-1099-ibm 5.4.0-1099.104~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-1153-aws 5.4.0-1153.163~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-1156-gcp 5.4.0-1156.165~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-224-generic 5.4.0-224.244~18.04.1 Available with Ubuntu Pro linux-image-5.4.0-224-lowlatency 5.4.0-224.244~18.04.1 Available with Ubuntu Pro linux-image-aws 5.4.0.1153.163~18.04.1 Available with Ubuntu Pro linux-image-aws-5.4 5.4.0.1153.163~18.04.1 Available with Ubuntu Pro linux-image-gcp 5.4.0.1156.165~18.04.1 Available with Ubuntu Pro linux-image-gcp-5.4 5.4.0.1156.165~18.04.1 Available with Ubuntu Pro linux-image-generic-5.4 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-generic-hwe-18.04 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-ibm 5.4.0.1099.104~18.04.1 Available with Ubuntu Pro linux-image-ibm-5.4 5.4.0.1099.104~18.04.1 Available with Ubuntu Pro linux-image-lowlatency-5.4 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-lowlatency-hwe-18.04 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-oem 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-oem-osp1 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-snapdragon-5.4 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-snapdragon-hwe-18.04 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-virtual-5.4 5.4.0.224.244~18.04.1 Available with Ubuntu Pro linux-image-virtual-hwe-18.04 5.4.0.224.244~18.04.1 Available with Ubuntu Pro After a standard system update you need to reboot your computer to make all the necessary changes. 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.

References

https://ubuntu.com/security/notices/USN-7922-1

CVE-2022-49026, CVE-2022-49390, CVE-2024-47691, CVE-2024-49935,

CVE-2024-50067, CVE-2024-50095, CVE-2024-50196, CVE-2024-53090,

CVE-2024-53218, CVE-2025-21855, CVE-2025-37958, CVE-2025-38666,

CVE-2025-39964, CVE-2025-39993, CVE-2025-40018

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7922-1

Topics%20covered

Topics Covered

security advisory Ubuntu important security issues system compromise Linux kernel

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