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Ubuntu 20.04 LTS: Linux Kernel Critical Flaws Addressed USN-7922-5

ubuntu
Calendar Grey January 12, 2026
Dist Ubuntu Esm H88
Critical updates address multiple security issues in Ubuntu's Linux kernel for IoT platforms, enhancing system protection.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-iot: Linux kernel for IoT platforms

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)

Topics%20covered

Topics Covered

security advisory critical kernel patch Ubuntu system update Linux IoT

Update Instructions

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1057-iot      5.4.0-1057.60
                                   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-7922-5

https://ubuntu.com/security/notices/USN-7922-4

https://ubuntu.com/security/notices/USN-7922-3

https://ubuntu.com/security/notices/USN-7922-2

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
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7922-5

Topics%20covered

Topics Covered

security advisory critical kernel patch Ubuntu system update Linux IoT

Package Information

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