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Ubuntu 22.04 LTS: USN-7460-1 critical: Linux kernel out-of-bounds write

ubuntu
Calendar Grey April 24, 2025
Dist Ubuntu Esm H88
Ubuntu 22.04 LTS tackles significant Linux kernel concerns, including memory corruption flaws and potential denial-of-service threats.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS

Details:

Jann Horn discovered that the watch_queue event notification subsystem in

the Linux kernel contained an out-of-bounds write vulnerability. A local

attacker could use this to cause a denial of service (system crash) or

escalate their privileges. (CVE-2022-0995)

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:

- Network drivers;

- Microsoft Azure Network Adapter (MANA) driver;

- File systems infrastructure;

- NTFS3 file system;

- Ethernet bridge;

- Ethtool driver;

- IPv6 networking;

- Network traffic control;

- VMware vSockets driver;

(CVE-2024-26837, CVE-2024-50248, CVE-2025-21756, CVE-2025-21701,

CVE-2024-50256, CVE-2025-21993, CVE-2025-21700, CVE-2025-21702,

CVE-2024-56...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory kernel patch Ubuntu system crash escalation out-of-bounds

Update Instructions

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1087-azure-fips  5.15.0-1087.96+fips1
                                  Available with Ubuntu Pro
  linux-image-azure-fips          5.15.0.1087.72
                                  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-7460-1

CVE-2022-0995, CVE-2024-26837, CVE-2024-42069, CVE-2024-46826,

CVE-2024-50248, CVE-2024-50256, CVE-2024-56651, CVE-2025-21700,

CVE-2025-21701, CVE-2025-21702, CVE-2025-21703, CVE-2025-21756,

CVE-2025-21993

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7460-1

Topics%20covered

Topics Covered

security advisory kernel patch Ubuntu system crash escalation out-of-bounds

Package Information

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