Ubuntu 22.04 LTS USN-8096-3 Linux Kernel Critical DoS Threat

ubuntu

March 17, 2026

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-gke: Linux kernel for Google Container Engine (GKE) systems

- linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems

- linux-hwe-5.15: Linux hardware enablement (HWE) kernel

- linux-intel-iotg-5.15: Linux kernel for Intel IoT platforms

- linux-lowlatency-hwe-5.15: Linux low latency kernel

- linux-oracle-5.15: Linux kernel for Oracle Cloud systems

Details:

Qualys discovered that several vulnerabilities existed in the AppArmor

Linux kernel Security Module (LSM). An unprivileged local attacker could

use these issues to load, replace, and remove arbitrary AppArmor profiles

causing denial of service, exposure of sensitive information (kernel

memory), local privilege escalation, or possibly escape a container.

(LP: #2143853)

Several security issues were discovered in the Linux kernel.

An attacker could possibly use th...

Read the Full Advisory

Topics Covered

security advisory denial of service update critical Ubuntu kernel

Update Instructions

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

Ubuntu 22.04 LTS
   linux-image-5.15.0-1099-gke     5.15.0-1099.105
   linux-image-gke                 5.15.0.1099.98
   linux-image-gke-5.15            5.15.0.1099.98

Ubuntu 20.04 LTS
   linux-image-5.15.0-1098-intel-iotg  5.15.0-1098.104~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1100-oracle  5.15.0-1100.106~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1103-aws     5.15.0-1103.110~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1103-gcp     5.15.0-1103.112~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-173-generic  5.15.0-173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-173-generic-64k  5.15.0-173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-173-generic-lpae  5.15.0-173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-173-lowlatency  5.15.0-173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-173-lowlatency-64k  5.15.0-173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 5.15.0.1103.110~20.04.1
                                   Available with Ubuntu Pro
   linux-image-aws-5.15            5.15.0.1103.110~20.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp                 5.15.0.1103.112~20.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp-5.15            5.15.0.1103.112~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-5.15        5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-64k-5.15    5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-64k-hwe-20.04  5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-hwe-20.04   5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-lpae-5.15   5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-lpae-hwe-20.04  5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel               5.15.0.1098.104~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel-iotg          5.15.0.1098.104~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel-iotg-5.15     5.15.0.1098.104~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-5.15     5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-64k-5.15  5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-64k-hwe-20.04  5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-hwe-20.04  5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04           5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04b          5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04c          5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04d          5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oracle              5.15.0.1100.106~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oracle-5.15         5.15.0.1100.106~20.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-5.15        5.15.0.173.183~20.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-hwe-20.04   5.15.0.173.183~20.04.1
                                   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-8096-3

https://ubuntu.com/security/notices/USN-8096-2

https://ubuntu.com/security/notices/USN-8096-1

https://launchpad.net/bugs/2143853

CVE-2022-49465, CVE-2024-36903, CVE-2024-36927, CVE-2024-37354,

CVE-2024-41014, CVE-2024-46830, CVE-2024-47666, CVE-2024-49968,

CVE-2025-22022, CVE-2025-22111, CVE-2025-22121, CVE-2025-38022,

CVE-2025-38129, CVE-2025-38556, CVE-2025-40040, CVE-2025-40083,

CVE-2025-40110, CVE-2025-40211, CVE-2025-40248, CVE-2025-40252,

CVE-2025-40253, CVE-2025-40254, CVE-2025-40257, CVE-2025-40258,

CVE-2025-40259, CVE-2025-40261, CVE-2025-40262, CVE-2025-40263,

CVE-2025-40264, CVE-2025-40269, CVE-2025-40271, CVE-2025-40272,

CVE-2025-40273, CVE-2025-40275, CVE-2025-40277, CVE-2025-40278,

CVE-2025-40279, CVE-2025-40280, CVE-2025-40281, CVE-2025-40282,

CVE-2025-40283, CVE-2025-40304, CVE-2025-40306, CVE-2025-40308,

CVE-2025-40309, CVE-2025-40312, CVE-2025-40313, CVE-2025-40314,

CVE-2025-40315, CVE-2025-40317, CVE-2025-40319, CVE-2025-40321,

CVE-2025-40322, CVE-2025-40324, CVE-2025-40331, CVE-2025-40342,

CVE-2025-40343, CVE-2025-40345, CVE-2025-40360, CVE-2025-40363,

CVE-2025-68168, CVE-2025-68176, CVE-2025-68177, CVE-2025-68185,

CVE-2025-68191, CVE-2025-68192, CVE-2025-68194, CVE-2025-68200,

CVE-2025-68204, CVE-2025-68217, CVE-2025-68220, CVE-2025-68227,

CVE-2025-68229, CVE-2025-68238, CVE-2025-68241, CVE-2025-68244,

CVE-2025-68245, CVE-2025-68254, CVE-2025-68255, CVE-2025-68257,

CVE-2025-68258, CVE-2025-68261, CVE-2025-68264, CVE-2025-68266,

CVE-2025-68282, CVE-2025-68284, CVE-2025-68285, CVE-2025-68286,

CVE-2025-68287, CVE-2025-68288, CVE-2025-68289, CVE-2025-68290,

CVE-2025-68295, CVE-2025-68301, CVE-2025-68302, CVE-2025-68303,

CVE-2025-68308, CVE-2025-68312, CVE-2025-68321, CVE-2025-68325,

CVE-2025-68327, CVE-2025-68328, CVE-2025-68330, CVE-2025-68331,

CVE-2025-68332, CVE-2025-68335, CVE-2025-68336, CVE-2025-68337,

CVE-2025-68339, CVE-2025-68344, CVE-2025-68346, CVE-2025-68349,

CVE-2025-68354, CVE-2025-68362, CVE-2025-68364, CVE-2025-68366,

CVE-2025-68367, CVE-2025-68372, CVE-2025-68724, CVE-2025-68727,

CVE-2025-68728, CVE-2025-68732, CVE-2025-68733, CVE-2025-68734,

CVE-2025-68740, CVE-2025-68746, CVE-2025-68757, CVE-2025-68758,

CVE-2025-68759, CVE-2025-68764, CVE-2025-68765, CVE-2025-68767,

CVE-2025-68769, CVE-2025-68771, CVE-2025-68774, CVE-2025-68776,

CVE-2025-68777, CVE-2025-68780, CVE-2025-68782, CVE-2025-68783,

CVE-2025-68785, CVE-2025-68787, CVE-2025-68788, CVE-2025-68795,

CVE-2025-68796, CVE-2025-68797, CVE-2025-68799, CVE-2025-68800,

CVE-2025-68801, CVE-2025-68803, CVE-2025-68804, CVE-2025-68808,

CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816,

CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-68821,

CVE-2025-71064, CVE-2025-71066, CVE-2025-71068, CVE-2025-71069,

CVE-2025-71075, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079,

CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084,

CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71091,

CVE-2025-71093, CVE-2025-71094, CVE-2025-71096, CVE-2025-71097,

CVE-2025-71098, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105,

CVE-2025-71108, CVE-2025-71111, CVE-2025-71112, CVE-2025-71113,

CVE-2025-71114, CVE-2025-71116, CVE-2025-71118, CVE-2025-71120,

CVE-2025-71121, CVE-2025-71125, CVE-2025-71127, CVE-2025-71131,

CVE-2025-71132, CVE-2025-71133, CVE-2025-71136, CVE-2025-71137,

CVE-2025-71147, CVE-2025-71154, CVE-2025-71180, CVE-2025-71182,

CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22980,

CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991,

CVE-2026-22992, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021,

CVE-2026-23047

Severity

critical

Lowest

Low

Medium

High

Critical

Ubuntu Security Notice USN-8096-3

Topics Covered

security advisory denial of service update critical Ubuntu kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1099.105

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Ubuntu 22.04 LTS USN-8096-3 Linux Kernel Critical DoS Threat

Summary

Topics Covered

Update Instructions

References

Topics Covered

Package Information

Get the latest News and Insights

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Ubuntu 22.04 LTS USN-8096-3 Linux Kernel Critical DoS Threat

Summary

Topics Covered

Update Instructions

References

Topics Covered

Package Information

Get the latest News and Insights

Related Articles

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