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Ubuntu 24.04 LTS Linux Kernel Critical EntrySign Load Issue USN-8179-1
ubuntu
April 16, 2026
Several security issues were fixed in the Linux kernel.
Summary
Several security issues were fixed in the Linux kernel.
Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) systems
- linux-gkeop: Linux kernel for Google Container Engine (GKE) systems
- linux-ibm: Linux kernel for IBM cloud systems
- linux-lowlatency: Linux low latency kernel
- linux-aws-6.8: Linux kernel for Amazon Web Services (AWS) systems
- linux-lowlatency-hwe-6.8: Linux low latency kernel
Details:
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality.
(CVE-2024-36347)
Several security issues were discovere...
Topics Covered
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.8.0-1037-gkeop 6.8.0-1037.40 linux-image-6.8.0-1050-gke 6.8.0-1050.56 linux-image-6.8.0-1050-gke-64k 6.8.0-1050.56 linux-image-6.8.0-1051-ibm 6.8.0-1051.51 linux-image-6.8.0-1052-aws 6.8.0-1052.55 linux-image-6.8.0-1052-aws-64k 6.8.0-1052.55 linux-image-6.8.0-1054-gcp 6.8.0-1054.57 linux-image-6.8.0-1054-gcp-64k 6.8.0-1054.57 linux-image-6.8.0-110-generic 6.8.0-110.110 linux-image-6.8.0-110-generic-64k 6.8.0-110.110 linux-image-6.8.0-110-lowlatency 6.8.0-110.110.1 linux-image-6.8.0-110-lowlatency-64k 6.8.0-110.110.1 linux-image-aws-6.8 6.8.0-1052.55 linux-image-aws-64k-6.8 6.8.0-1052.55 linux-image-aws-64k-lts-24.04 6.8.0-1052.55 linux-image-aws-lts-24.04 6.8.0-1052.55 linux-image-gcp-6.8 6.8.0-1054.57 linux-image-gcp-64k-6.8 6.8.0-1054.57 linux-image-gcp-64k-lts-24.04 6.8.0-1054.57 linux-image-gcp-lts-24.04 6.8.0-1054.57 linux-image-generic 6.8.0-110.110 linux-image-generic-6.8 6.8.0-110.110 linux-image-generic-64k 6.8.0-110.110 linux-image-generic-64k-6.8 6.8.0-110.110 linux-image-generic-lpae 6.8.0-110.110 linux-image-gke 6.8.0-1050.56 linux-image-gke-6.8 6.8.0-1050.56 linux-image-gke-64k 6.8.0-1050.56 linux-image-gke-64k-6.8 6.8.0-1050.56 linux-image-gkeop 6.8.0-1037.40 linux-image-gkeop-6.8 6.8.0-1037.40 linux-image-ibm 6.8.0-1051.51 linux-image-ibm-6.8 6.8.0-1051.51 linux-image-ibm-classic 6.8.0-1051.51 linux-image-ibm-lts-24.04 6.8.0-1051.51 linux-image-intel-iotg 6.8.0-110.110 linux-image-kvm 6.8.0-110.110 linux-image-lowlatency 6.8.0-110.110.1 linux-image-lowlatency-6.8 6.8.0-110.110.1 linux-image-lowlatency-64k 6.8.0-110.110.1 linux-image-lowlatency-64k-6.8 6.8.0-110.110.1 linux-image-virtual 6.8.0-110.110 linux-image-virtual-6.8 6.8.0-110.110 Ubuntu 22.04 LTS linux-image-6.8.0-1052-aws 6.8.0-1052.55~22.04.1 linux-image-6.8.0-1052-aws-64k 6.8.0-1052.55~22.04.1 linux-image-6.8.0-110-lowlatency 6.8.0-110.110.1~22.04.1 linux-image-6.8.0-110-lowlatency-64k 6.8.0-110.110.1~22.04.1 linux-image-aws 6.8.0-1052.55~22.04.1 linux-image-aws-6.8 6.8.0-1052.55~22.04.1 linux-image-aws-64k 6.8.0-1052.55~22.04.1 linux-image-aws-64k-6.8 6.8.0-1052.55~22.04.1 linux-image-lowlatency-6.8 6.8.0-110.110.1~22.04.1 linux-image-lowlatency-64k-6.8 6.8.0-110.110.1~22.04.1 linux-image-lowlatency-64k-hwe-22.04 6.8.0-110.110.1~22.04.1 linux-image-lowlatency-hwe-22.04 6.8.0-110.110.1~22.04.1 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-8179-1
CVE-2024-36347, CVE-2024-57795, CVE-2025-22022, CVE-2025-22111,
CVE-2025-38022, CVE-2025-38234, CVE-2025-40164, CVE-2025-40325,
CVE-2025-68206, CVE-2025-68254, CVE-2025-68255, CVE-2025-68256,
CVE-2025-68257, CVE-2025-68258, CVE-2025-68259, CVE-2025-68261,
CVE-2025-68263, CVE-2025-68264, CVE-2025-68265, CVE-2025-68266,
CVE-2025-68291, CVE-2025-68325, CVE-2025-68332, CVE-2025-68335,
CVE-2025-68336, CVE-2025-68337, CVE-2025-68344, CVE-2025-68345,
CVE-2025-68346, CVE-2025-68347, CVE-2025-68349, CVE-2025-68354,
CVE-2025-68362, CVE-2025-68363, CVE-2025-68364, CVE-2025-68366,
CVE-2025-68367, CVE-2025-68369, CVE-2025-68371, CVE-2025-68372,
CVE-2025-68374, CVE-2025-68378, CVE-2025-68379, CVE-2025-68380,
CVE-2025-68724, CVE-2025-68727, CVE-2025-68728, CVE-2025-68732,
CVE-2025-68733, CVE-2025-68740, CVE-2025-68741, CVE-2025-68742,
CVE-2025-68744, CVE-2025-68746, CVE-2025-68753, CVE-2025-68755,
CVE-2025-68756, CVE-2025-68757, CVE-2025-68758, CVE-2025-68759,
CVE-2025-68763, CVE-2025-68764, CVE-2025-68765, CVE-2025-68766,
CVE-2025-68767, CVE-2025-68769, CVE-2025-68770, CVE-2025-68771,
CVE-2025-68772, CVE-2025-68773, CVE-2025-68774, CVE-2025-68775,
CVE-2025-68776, CVE-2025-68777, CVE-2025-68778, CVE-2025-68780,
CVE-2025-68782, CVE-2025-68783, CVE-2025-68785, CVE-2025-68786,
CVE-2025-68787, CVE-2025-68788, CVE-2025-68794, CVE-2025-68795,
CVE-2025-68796, CVE-2025-68797, CVE-2025-68798, CVE-2025-68799,
CVE-2025-68800, CVE-2025-68801, CVE-2025-68804, CVE-2025-68806,
CVE-2025-68808, CVE-2025-68809, CVE-2025-68810, CVE-2025-68811,
CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816,
CVE-2025-68817, CVE-2025-68818, CVE-2025-68819, CVE-2025-68820,
CVE-2025-68821, CVE-2025-71064, CVE-2025-71065, CVE-2025-71066,
CVE-2025-71067, CVE-2025-71068, CVE-2025-71069, CVE-2025-71071,
CVE-2025-71072, 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-2025-71088, CVE-2025-71089, CVE-2025-71091, CVE-2025-71093,
CVE-2025-71094, CVE-2025-71095, CVE-2025-71096, CVE-2025-71097,
CVE-2025-71098, CVE-2025-71101, CVE-2025-71102, CVE-2025-71104,
CVE-2025-71105, CVE-2025-71107, CVE-2025-71108, CVE-2025-71109,
CVE-2025-71111, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114,
CVE-2025-71116, CVE-2025-71118, CVE-2025-71119, CVE-2025-71120,
CVE-2025-71121, CVE-2025-71122, CVE-2025-71123, CVE-2025-71125,
CVE-2025-71126, CVE-2025-71127, CVE-2025-71130, CVE-2025-71131,
CVE-2025-71132, CVE-2025-71133, CVE-2025-71135, CVE-2025-71136,
CVE-2025-71137, CVE-2025-71138, CVE-2025-71140, CVE-2025-71141,
CVE-2025-71143, CVE-2025-71144, CVE-2025-71147, CVE-2025-71148,
CVE-2025-71149, CVE-2025-71150, CVE-2025-71151, CVE-2025-71153,
CVE-2025-71154, CVE-2026-23209
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Ubuntu Security Notice USN-8179-1
Topics Covered
Package Information
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