========================================================================== Ubuntu Security Notice USN-7930-2 December 15, 2025
linux-fips vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-fips: Linux kernel with FIPS
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;
- Hardware monitoring drivers;
- InfiniBand drivers;
- MTD block device drivers;
- Network drivers;
- DesignWare USB3 driver;
- Ceph distributed file system;
- Network file system (NFS) server daemon;
- NILFS2 file system;
- File systems infrastructure;
- Tracing infrastructure;
- Appletalk network protocol;
- IPv6 networking;
- Netfilter;
(CVE-2021-47146, CVE-2021-47269, CVE-2021-47385, CVE-2021-47634,
CVE-2022-49026, CVE-2024-49935, CVE-2024-50067, CVE-2024-50095,
CVE-2024-50179, CVE-2024-53112, CVE-2024-53217, CVE-2025-21715,
CVE-2025-21722, CVE-2025-21811, CVE-2025-21855, CVE-2025-38666,
CVE-2025-39964, CVE-2025-40018)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS
linux-image-4.4.0-1120-fips 4.4.0-1120.127
Available with Ubuntu Pro
linux-image-fips 4.4.0.1120.121
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-7930-2
https://ubuntu.com/security/notices/USN-7930-1
CVE-2021-47146, CVE-2021-47269, CVE-2021-47385, CVE-2021-47634,
CVE-2022-49026, CVE-2024-49935, CVE-2024-50067, CVE-2024-50095,
CVE-2024-50179, CVE-2024-53112, CVE-2024-53217, CVE-2025-21715,
CVE-2025-21722, CVE-2025-21811, CVE-2025-21855, CVE-2025-38666,
CVE-2025-39964, CVE-2025-40018
Package Information:
https://launchpad.net/ubuntu/+source/linux-fips/4.4.0-1120.127
OpenPGP_signature.asc
Description: OpenPGP digital signature
