USN-7429-2: Linux kernel (FIPS) vulnerabilities
9 April 2025
Several security issues were fixed in the Linux kernel.
Releases
Packages
- 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:
- 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;
(CVE-2025-21702, CVE-2024-53227, CVE-2024-46826, CVE-2024-49952,
CVE-2024-56600, CVE-2021-47235, CVE-2024-50265, CVE-2021-47119,
CVE-2024-53165, CVE-2021-47483, CVE-2024-50302, CVE-2024-56595,
CVE-2024-50167, CVE-2024-56658, CVE-2024-49948, CVE-2024-26921,
CVE-2021-47602, CVE-2024-26863, CVE-2021-47320, CVE-2025-21700,
CVE-2021-47122)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
linux-image-4.4.0-1112-fips
-
4.4.0-1112.119
-
linux-image-fips
-
4.4.0.1112.113
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
- CVE-2024-50302
- CVE-2024-49948
- CVE-2024-56595
- CVE-2024-49952
- CVE-2024-50265
- CVE-2021-47122
- CVE-2024-50167
- CVE-2025-21700
- CVE-2021-47235
- CVE-2024-53165
- CVE-2024-56658
- CVE-2021-47602
- CVE-2021-47483
- CVE-2024-53227
- CVE-2021-47119
- CVE-2025-21702
- CVE-2021-47320
- CVE-2024-46826
- CVE-2024-26921
- CVE-2024-56600
- CVE-2024-26863
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