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Ubuntu 22.04 LTS Linux Kernel Critical Security Flaws USN-8440-1

ubuntu
Calendar Grey June 16, 2026
Scroller Ubuntu Esm H88
Multiple security flaws fixed in Ubuntu Linux kernel affecting integrity and confidentiality. Immediate updates required!
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure-6.8: Linux kernel for Microsoft Azure cloud systems

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)

It was discovered that the Linux kernel algif_aead module did not properly

handle in-place cryptographic operations. This flaw is known as Copy Fail.

A local attacker could use this to escalate privileges, or possibly escape

a container. (CVE-2026-31431)

It was discovered that the Linux kernel did not properly handle shared page

fragments during socket buffer operations, collectively known as Dirty

Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the

Rx...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical privilege escalation Ubuntu Linux kernel

Update Instructions

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

Ubuntu 22.04 LTS
   linux-image-6.8.0-1059-azure    6.8.0-1059.65~22.04.1
   linux-image-azure               6.8.0-1059.65~22.04.1
   linux-image-azure-6.8           6.8.0-1059.65~22.04.1

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-8440-1

CVE-2024-36347, CVE-2024-50004, CVE-2024-57795, CVE-2024-58096,

CVE-2024-58097, CVE-2025-22022, CVE-2025-22111, CVE-2025-37926,

CVE-2025-38022, CVE-2025-38201, CVE-2025-38234, CVE-2025-38591,

CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, 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-2025-68351, CVE-2025-68354, CVE-2025-68358, CVE-2025-68362,

CVE-2025-68363, CVE-2025-68364, CVE-2025-68365, 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-2025-68725, 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-2025-68749,

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-2025-68803, 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-2025-68823, 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-2025-71150, CVE-2025-71151, CVE-2025-71153, CVE-2025-71154,

CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180,

CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185,

CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190,

CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194,

CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198,

CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222,

CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976,

CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980,

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

CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997,

CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001,

CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010,

CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021,

CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031,

CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037,

CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050,

CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057,

CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062,

CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068,

CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075,

CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083,

CVE-2026-23084, CVE-2026-23085, CVE-2026-23086, CVE-2026-23087,

CVE-2026-23088, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091,

CVE-2026-23093, CVE-2026-23094, CVE-2026-23095, CVE-2026-23096,

CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101,

CVE-2026-23102, CVE-2026-23103, CVE-2026-23105, CVE-2026-23107,

CVE-2026-23108, CVE-2026-23110, CVE-2026-23112, CVE-2026-23113,

CVE-2026-23116, CVE-2026-23119, CVE-2026-23120, CVE-2026-23121,

CVE-2026-23123, CVE-2026-23124, CVE-2026-23125, CVE-2026-23126,

CVE-2026-23128, CVE-2026-23129, CVE-2026-23131, CVE-2026-23133,

CVE-2026-23135, CVE-2026-23136, CVE-2026-23139, CVE-2026-23140,

CVE-2026-23141, CVE-2026-23142, CVE-2026-23144, CVE-2026-23145,

CVE-2026-23146, CVE-2026-23148, CVE-2026-23150, CVE-2026-23151,

CVE-2026-23156, CVE-2026-23159, CVE-2026-23160, CVE-2026-23163,

CVE-2026-23164, CVE-2026-23166, CVE-2026-23167, CVE-2026-23168,

CVE-2026-23170, CVE-2026-23172, CVE-2026-23173, CVE-2026-23176,

CVE-2026-23178, CVE-2026-23179, CVE-2026-23180, CVE-2026-23182,

CVE-2026-23187, CVE-2026-23190, CVE-2026-23191, CVE-2026-23193,

CVE-2026-23198, CVE-2026-23204, CVE-2026-23205, CVE-2026-23206,

CVE-2026-23209, CVE-2026-23212, CVE-2026-23213, CVE-2026-23214,

CVE-2026-23215, CVE-2026-23216, CVE-2026-23231, CVE-2026-23254,

CVE-2026-23256, CVE-2026-23257, CVE-2026-23258, CVE-2026-23260,

CVE-2026-23261, CVE-2026-23262, CVE-2026-23264, CVE-2026-23274,

CVE-2026-23351, CVE-2026-23394, CVE-2026-31419, CVE-2026-31431,

CVE-2026-31504, CVE-2026-31533, CVE-2026-31676, CVE-2026-43033,

CVE-2026-43077, CVE-2026-43078, CVE-2026-43284, CVE-2026-43362,

CVE-2026-43494, CVE-2026-43500, CVE-2026-43503, CVE-2026-45998,

CVE-2026-46000, CVE-2026-46028, CVE-2026-46300, CVE-2026-46323,

CVE-2026-46333, CVE-2026-47326, CVE-2026-47327, CVE-2026-47328,

CVE-2026-47329, CVE-2026-47330, CVE-2026-47331, CVE-2026-47332,

CVE-2026-47333, CVE-2026-47334, CVE-2026-47335, CVE-2026-47336,

CVE-2026-47337

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8440-1

Topics%20covered

Topics Covered

security advisory denial of service critical privilege escalation Ubuntu Linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-azure-6.8/6.8.0-1059.65~22.04.1

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