Ubuntu 24.04 LTS Linux Xilinx Kernel Critical Security Flaws USN-8261-1

ubuntu

May 7, 2026

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-xilinx: Linux kernel for Xilinx 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)

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, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,

CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,

CVE-2026-23...

Read the Full Advisory

Topics Covered

security advisory denial of service critical Ubuntu confidentiality linux-xilinx

Update Instructions

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

Ubuntu 24.04 LTS
  linux-image-6.8.0-1029-xilinx   6.8.0-1029.30
  linux-image-xilinx              6.8.0.1029.30
  linux-image-xilinx-6.8          6.8.0.1029.30
  linux-image-xilinx-zynqmp       6.8.0.1029.30

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-8261-1

CVE-2024-36347, CVE-2024-57795, CVE-2025-21833, CVE-2025-22022,

CVE-2025-22103, CVE-2025-22105, CVE-2025-22106, CVE-2025-22107,

CVE-2025-22111, CVE-2025-22113, CVE-2025-22121, CVE-2025-22124,

CVE-2025-22125, CVE-2025-23129, CVE-2025-23130, CVE-2025-23133,

CVE-2025-23143, CVE-2025-37860, CVE-2025-38022, CVE-2025-38105,

CVE-2025-38234, CVE-2025-38502, CVE-2025-38556, CVE-2025-38627,

CVE-2025-38643, CVE-2025-38709, CVE-2025-39678, CVE-2025-39697,

CVE-2025-39805, CVE-2025-39806, CVE-2025-39807, CVE-2025-39808,

CVE-2025-39810, CVE-2025-39811, CVE-2025-39812, CVE-2025-39813,

CVE-2025-39815, CVE-2025-39817, CVE-2025-39819, CVE-2025-39823,

CVE-2025-39824, CVE-2025-39825, CVE-2025-39826, CVE-2025-39827,

CVE-2025-39828, CVE-2025-39829, CVE-2025-39832, CVE-2025-39835,

CVE-2025-39836, CVE-2025-39838, CVE-2025-39839, CVE-2025-39841,

CVE-2025-39842, CVE-2025-39843, CVE-2025-39844, CVE-2025-39845,

CVE-2025-39846, CVE-2025-39847, CVE-2025-39848, CVE-2025-39849,

CVE-2025-39850, CVE-2025-39851, CVE-2025-39852, CVE-2025-39853,

CVE-2025-39854, CVE-2025-39857, CVE-2025-39860, CVE-2025-39861,

CVE-2025-39863, CVE-2025-39864, CVE-2025-39865, CVE-2025-39866,

CVE-2025-39869, CVE-2025-39870, CVE-2025-39871, CVE-2025-39873,

CVE-2025-39876, CVE-2025-39877, CVE-2025-39880, CVE-2025-39881,

CVE-2025-39883, CVE-2025-39885, CVE-2025-39886, CVE-2025-39891,

CVE-2025-39894, CVE-2025-39895, CVE-2025-39899, CVE-2025-39901,

CVE-2025-39902, CVE-2025-39907, CVE-2025-39909, CVE-2025-39911,

CVE-2025-39913, CVE-2025-39914, CVE-2025-39916, CVE-2025-39920,

CVE-2025-39923, CVE-2025-39927, CVE-2025-39929, CVE-2025-39931,

CVE-2025-39932, CVE-2025-39934, CVE-2025-39937, CVE-2025-39938,

CVE-2025-39940, CVE-2025-39942, CVE-2025-39943, CVE-2025-39944,

CVE-2025-39945, CVE-2025-39947, CVE-2025-39948, CVE-2025-39949,

CVE-2025-39950, CVE-2025-39951, CVE-2025-39952, CVE-2025-39953,

CVE-2025-39955, CVE-2025-39957, CVE-2025-39961, CVE-2025-39965,

CVE-2025-39967, CVE-2025-39968, CVE-2025-39969, CVE-2025-39970,

CVE-2025-39971, CVE-2025-39972, CVE-2025-39973, CVE-2025-39977,

CVE-2025-39978, CVE-2025-39980, CVE-2025-39981, CVE-2025-39982,

CVE-2025-39985, CVE-2025-39986, CVE-2025-39987, CVE-2025-39988,

CVE-2025-39991, CVE-2025-39992, CVE-2025-39994, CVE-2025-39995,

CVE-2025-39996, CVE-2025-39998, CVE-2025-40000, CVE-2025-40001,

CVE-2025-40006, CVE-2025-40008, CVE-2025-40009, CVE-2025-40010,

CVE-2025-40011, CVE-2025-40013, CVE-2025-40016, CVE-2025-40020,

CVE-2025-40021, CVE-2025-40024, CVE-2025-40026, CVE-2025-40027,

CVE-2025-40029, CVE-2025-40030, CVE-2025-40031, CVE-2025-40032,

CVE-2025-40033, CVE-2025-40035, CVE-2025-40036, CVE-2025-40037,

CVE-2025-40038, CVE-2025-40042, CVE-2025-40043, CVE-2025-40044,

CVE-2025-40047, CVE-2025-40048, CVE-2025-40049, CVE-2025-40051,

CVE-2025-40052, CVE-2025-40053, CVE-2025-40055, CVE-2025-40056,

CVE-2025-40057, CVE-2025-40058, CVE-2025-40059, CVE-2025-40060,

CVE-2025-40061, CVE-2025-40062, CVE-2025-40067, CVE-2025-40068,

CVE-2025-40070, CVE-2025-40071, CVE-2025-40077, CVE-2025-40078,

CVE-2025-40079, CVE-2025-40080, CVE-2025-40081, CVE-2025-40083,

CVE-2025-40084, CVE-2025-40085, CVE-2025-40087, CVE-2025-40088,

CVE-2025-40092, CVE-2025-40093, CVE-2025-40094, CVE-2025-40095,

CVE-2025-40096, CVE-2025-40099, CVE-2025-40100, CVE-2025-40101,

CVE-2025-40103, CVE-2025-40104, CVE-2025-40105, CVE-2025-40106,

CVE-2025-40107, CVE-2025-40109, CVE-2025-40110, CVE-2025-40111,

CVE-2025-40112, CVE-2025-40115, CVE-2025-40116, CVE-2025-40118,

CVE-2025-40120, CVE-2025-40121, CVE-2025-40123, CVE-2025-40124,

CVE-2025-40125, CVE-2025-40126, CVE-2025-40127, CVE-2025-40129,

CVE-2025-40134, CVE-2025-40137, CVE-2025-40140, CVE-2025-40141,

CVE-2025-40153, CVE-2025-40154, CVE-2025-40155, CVE-2025-40156,

CVE-2025-40159, CVE-2025-40160, CVE-2025-40164, CVE-2025-40165,

CVE-2025-40166, CVE-2025-40167, CVE-2025-40169, CVE-2025-40171,

CVE-2025-40172, CVE-2025-40173, CVE-2025-40176, CVE-2025-40178,

CVE-2025-40179, CVE-2025-40180, CVE-2025-40183, CVE-2025-40187,

CVE-2025-40188, CVE-2025-40192, CVE-2025-40193, CVE-2025-40194,

CVE-2025-40196, CVE-2025-40198, CVE-2025-40200, CVE-2025-40201,

CVE-2025-40202, CVE-2025-40204, CVE-2025-40205, CVE-2025-40206,

CVE-2025-40207, CVE-2025-40211, CVE-2025-40218, CVE-2025-40219,

CVE-2025-40220, CVE-2025-40221, CVE-2025-40223, CVE-2025-40226,

CVE-2025-40231, CVE-2025-40233, CVE-2025-40235, CVE-2025-40237,

CVE-2025-40238, CVE-2025-40240, CVE-2025-40242, CVE-2025-40243,

CVE-2025-40244, CVE-2025-40245, CVE-2025-40248, CVE-2025-40250,

CVE-2025-40251, 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-2025-40266,

CVE-2025-40268, 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-2025-40284, CVE-2025-40285, CVE-2025-40286,

CVE-2025-40287, CVE-2025-40288, CVE-2025-40289, CVE-2025-40292,

CVE-2025-40293, CVE-2025-40294, CVE-2025-40301, CVE-2025-40303,

CVE-2025-40304, CVE-2025-40305, CVE-2025-40306, CVE-2025-40307,

CVE-2025-40308, CVE-2025-40309, CVE-2025-40310, CVE-2025-40311,

CVE-2025-40312, CVE-2025-40313, CVE-2025-40314, CVE-2025-40315,

CVE-2025-40317, CVE-2025-40318, CVE-2025-40319, CVE-2025-40320,

CVE-2025-40321, CVE-2025-40322, CVE-2025-40323, CVE-2025-40324,

CVE-2025-40325, CVE-2025-40328, CVE-2025-40329, CVE-2025-40331,

CVE-2025-40333, CVE-2025-40337, CVE-2025-40339, CVE-2025-40341,

CVE-2025-40342, CVE-2025-40343, CVE-2025-40345, CVE-2025-40346,

CVE-2025-40347, CVE-2025-40349, CVE-2025-40350, CVE-2025-40351,

CVE-2025-40353, CVE-2025-40358, CVE-2025-40360, CVE-2025-40363,

CVE-2025-68168, CVE-2025-68171, CVE-2025-68172, CVE-2025-68173,

CVE-2025-68176, CVE-2025-68177, CVE-2025-68178, CVE-2025-68179,

CVE-2025-68180, CVE-2025-68183, CVE-2025-68184, CVE-2025-68185,

CVE-2025-68190, CVE-2025-68191, CVE-2025-68192, CVE-2025-68194,

CVE-2025-68198, CVE-2025-68200, CVE-2025-68201, CVE-2025-68204,

CVE-2025-68206, CVE-2025-68208, CVE-2025-68213, CVE-2025-68214,

CVE-2025-68217, CVE-2025-68218, CVE-2025-68219, CVE-2025-68220,

CVE-2025-68222, CVE-2025-68223, CVE-2025-68227, CVE-2025-68229,

CVE-2025-68231, CVE-2025-68233, CVE-2025-68235, CVE-2025-68237,

CVE-2025-68238, CVE-2025-68241, CVE-2025-68244, CVE-2025-68245,

CVE-2025-68246, CVE-2025-68249, 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-2025-68282, CVE-2025-68283, 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-2025-68297,

CVE-2025-68301, CVE-2025-68302, CVE-2025-68303, CVE-2025-68305,

CVE-2025-68307, CVE-2025-68308, CVE-2025-68310, CVE-2025-68311,

CVE-2025-68312, CVE-2025-68313, CVE-2025-68315, CVE-2025-68320,

CVE-2025-68321, CVE-2025-68322, 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-2025-68340, CVE-2025-68342, CVE-2025-68343, 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-2025-68371, 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-2025-68734, 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-2025-71064, 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-2025-71125, 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-2025-71147, CVE-2025-71148, CVE-2025-71149, CVE-2025-71150,

CVE-2025-71151, CVE-2025-71153, CVE-2025-71154, CVE-2026-23060,

CVE-2026-23074, CVE-2026-23111, CVE-2026-23112, CVE-2026-23209,

CVE-2026-23231, CVE-2026-23268, CVE-2026-23269, CVE-2026-23273,

CVE-2026-23403, CVE-2026-23404, CVE-2026-23405, CVE-2026-23406,

CVE-2026-23407, CVE-2026-23408, CVE-2026-23409, CVE-2026-23410,

CVE-2026-23411, https://launchpad.net/bugs/2143853

Severity

critical

Lowest

Low

Medium

High

Critical

Ubuntu Security Notice USN-8261-1

Topics Covered

security advisory denial of service critical Ubuntu confidentiality linux-xilinx

Package Information

https://launchpad.net/ubuntu/+source/linux-xilinx/6.8.0-1029.30

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Ubuntu 24.04 LTS Linux Xilinx Kernel Critical Security Flaws USN-8261-1

Summary

Topics Covered

Update Instructions

References

Topics Covered

Package Information

Get the latest News and Insights

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Ubuntu 24.04 LTS Linux Xilinx Kernel Critical Security Flaws USN-8261-1

Summary

Topics Covered

Update Instructions

References

Topics Covered

Package Information

Get the latest News and Insights

Related Articles

Powered By

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