Ubuntu 24.04 LTS Security Advisory: Kernel Real-time Update Required

ubuntu

April 23, 2025

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-realtime: Linux kernel for Real-time systems

Details:

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:

- ARM64 architecture;

- MIPS architecture;

- PowerPC architecture;

- RISC-V architecture;

- S390 architecture;

- SuperH RISC architecture;

- User-Mode Linux (UML);

- x86 architecture;

- Block layer subsystem;

- Cryptographic API;

- Compute Acceleration Framework;

- ACPI drivers;

- Drivers core;

- RAM backed block device driver;

- Compressed RAM block device driver;

- TPM device driver;

- Clock framework and drivers;

- Data acquisition framework and drivers;

- CPU frequency scaling framework;

- Hardware crypto device drivers;

- CXL (Compute Express Link) drivers;

- EDAC drivers;

- ARM SCMI message protocol;

- ARM SCPI ...

Read the Full Advisory

Topics Covered

security advisory update instructions ubuntu linux kernel system reboot real-time systems

Update Instructions

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

Ubuntu 24.04 LTS
  linux-image-6.8.1-1020-realtime  6.8.1-1020.21
                                  Available with Ubuntu Pro
  linux-image-realtime            6.8.1-1020.21
                                  Available with Ubuntu Pro
  linux-image-realtime-hwe-24.04  6.8.1-1020.21
                                  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-7453-1

CVE-2022-49034, CVE-2024-41014, CVE-2024-41932, CVE-2024-41935,

CVE-2024-42122, CVE-2024-43098, CVE-2024-44955, CVE-2024-45828,

CVE-2024-47141, CVE-2024-47143, CVE-2024-47794, CVE-2024-47809,

CVE-2024-48873, CVE-2024-48875, CVE-2024-48876, CVE-2024-48881,

CVE-2024-49569, CVE-2024-49899, CVE-2024-49906, CVE-2024-50010,

CVE-2024-50051, CVE-2024-50067, CVE-2024-50103, CVE-2024-50104,

CVE-2024-50105, CVE-2024-50107, CVE-2024-50108, CVE-2024-50110,

CVE-2024-50111, CVE-2024-50112, CVE-2024-50115, CVE-2024-50116,

CVE-2024-50118, CVE-2024-50120, CVE-2024-50121, CVE-2024-50124,

CVE-2024-50125, CVE-2024-50126, CVE-2024-50127, CVE-2024-50128,

CVE-2024-50130, CVE-2024-50131, CVE-2024-50133, CVE-2024-50135,

CVE-2024-50136, CVE-2024-50137, CVE-2024-50138, CVE-2024-50139,

CVE-2024-50140, CVE-2024-50141, CVE-2024-50142, CVE-2024-50143,

CVE-2024-50145, CVE-2024-50146, CVE-2024-50147, CVE-2024-50150,

CVE-2024-50151, CVE-2024-50152, CVE-2024-50153, CVE-2024-50154,

CVE-2024-50155, CVE-2024-50156, CVE-2024-50158, CVE-2024-50159,

CVE-2024-50160, CVE-2024-50162, CVE-2024-50163, CVE-2024-50164,

CVE-2024-50166, CVE-2024-50167, CVE-2024-50169, CVE-2024-50170,

CVE-2024-50172, CVE-2024-50203, CVE-2024-50205, CVE-2024-50206,

CVE-2024-50207, CVE-2024-50208, CVE-2024-50209, CVE-2024-50210,

CVE-2024-50211, CVE-2024-50215, CVE-2024-50216, CVE-2024-50218,

CVE-2024-50220, CVE-2024-50221, CVE-2024-50222, CVE-2024-50223,

CVE-2024-50224, CVE-2024-50225, CVE-2024-50226, CVE-2024-50230,

CVE-2024-50231, CVE-2024-50232, CVE-2024-50234, CVE-2024-50235,

CVE-2024-50236, CVE-2024-50237, CVE-2024-50238, CVE-2024-50239,

CVE-2024-50240, CVE-2024-50242, CVE-2024-50243, CVE-2024-50244,

CVE-2024-50245, CVE-2024-50246, CVE-2024-50247, CVE-2024-50248,

CVE-2024-50249, CVE-2024-50250, CVE-2024-50251, CVE-2024-50252,

CVE-2024-50255, CVE-2024-50256, CVE-2024-50257, CVE-2024-50258,

CVE-2024-50259, CVE-2024-50261, CVE-2024-50262, CVE-2024-50263,

CVE-2024-50265, CVE-2024-50267, CVE-2024-50268, CVE-2024-50269,

CVE-2024-50270, CVE-2024-50271, CVE-2024-50272, CVE-2024-50273,

CVE-2024-50274, CVE-2024-50275, CVE-2024-50276, CVE-2024-50278,

CVE-2024-50279, CVE-2024-50280, CVE-2024-50282, CVE-2024-50283,

CVE-2024-50284, CVE-2024-50285, CVE-2024-50286, CVE-2024-50287,

CVE-2024-50288, CVE-2024-50289, CVE-2024-50290, CVE-2024-50291,

CVE-2024-50292, CVE-2024-50294, CVE-2024-50295, CVE-2024-50296,

CVE-2024-50297, CVE-2024-50298, CVE-2024-50299, CVE-2024-50300,

CVE-2024-50301, CVE-2024-50303, CVE-2024-50304, CVE-2024-52332,

CVE-2024-53042, CVE-2024-53043, CVE-2024-53044, CVE-2024-53045,

CVE-2024-53046, CVE-2024-53047, CVE-2024-53048, CVE-2024-53050,

CVE-2024-53051, CVE-2024-53052, CVE-2024-53053, CVE-2024-53055,

CVE-2024-53058, CVE-2024-53059, CVE-2024-53060, CVE-2024-53061,

CVE-2024-53062, CVE-2024-53066, CVE-2024-53067, CVE-2024-53068,

CVE-2024-53072, CVE-2024-53076, CVE-2024-53079, CVE-2024-53081,

CVE-2024-53082, CVE-2024-53083, CVE-2024-53084, CVE-2024-53085,

CVE-2024-53086, CVE-2024-53087, CVE-2024-53088, CVE-2024-53089,

CVE-2024-53090, CVE-2024-53091, CVE-2024-53093, CVE-2024-53094,

CVE-2024-53095, CVE-2024-53096, CVE-2024-53099, CVE-2024-53100,

CVE-2024-53101, CVE-2024-53105, CVE-2024-53106, CVE-2024-53107,

CVE-2024-53108, CVE-2024-53109, CVE-2024-53110, CVE-2024-53111,

CVE-2024-53112, CVE-2024-53113, CVE-2024-53114, CVE-2024-53115,

CVE-2024-53117, CVE-2024-53118, CVE-2024-53119, CVE-2024-53120,

CVE-2024-53121, CVE-2024-53122, CVE-2024-53123, CVE-2024-53126,

CVE-2024-53127, CVE-2024-53128, CVE-2024-53129, CVE-2024-53130,

CVE-2024-53131, CVE-2024-53133, CVE-2024-53134, CVE-2024-53135,

CVE-2024-53138, CVE-2024-53139, CVE-2024-53142, CVE-2024-53145,

CVE-2024-53146, CVE-2024-53147, CVE-2024-53148, CVE-2024-53150,

CVE-2024-53151, CVE-2024-53154, CVE-2024-53155, CVE-2024-53157,

CVE-2024-53158, CVE-2024-53160, CVE-2024-53161, CVE-2024-53162,

CVE-2024-53163, CVE-2024-53166, CVE-2024-53168, CVE-2024-53169,

CVE-2024-53171, CVE-2024-53172, CVE-2024-53173, CVE-2024-53174,

CVE-2024-53175, CVE-2024-53176, CVE-2024-53177, CVE-2024-53178,

CVE-2024-53180, CVE-2024-53181, CVE-2024-53183, CVE-2024-53184,

CVE-2024-53185, CVE-2024-53187, CVE-2024-53188, CVE-2024-53190,

CVE-2024-53191, CVE-2024-53194, CVE-2024-53195, CVE-2024-53196,

CVE-2024-53197, CVE-2024-53198, CVE-2024-53200, CVE-2024-53201,

CVE-2024-53202, CVE-2024-53203, CVE-2024-53208, CVE-2024-53209,

CVE-2024-53210, CVE-2024-53213, CVE-2024-53214, CVE-2024-53215,

CVE-2024-53217, CVE-2024-53218, CVE-2024-53219, CVE-2024-53220,

CVE-2024-53221, CVE-2024-53222, CVE-2024-53223, CVE-2024-53224,

CVE-2024-53226, CVE-2024-53227, CVE-2024-53228, CVE-2024-53229,

CVE-2024-53230, CVE-2024-53231, CVE-2024-53232, CVE-2024-53233,

CVE-2024-53234, CVE-2024-53236, CVE-2024-53237, CVE-2024-53239,

CVE-2024-53680, CVE-2024-56531, CVE-2024-56532, CVE-2024-56533,

CVE-2024-56538, CVE-2024-56539, CVE-2024-56540, CVE-2024-56543,

CVE-2024-56545, CVE-2024-56546, CVE-2024-56548, CVE-2024-56549,

CVE-2024-56550, CVE-2024-56551, CVE-2024-56557, CVE-2024-56558,

CVE-2024-56561, CVE-2024-56562, CVE-2024-56565, CVE-2024-56566,

CVE-2024-56567, CVE-2024-56568, CVE-2024-56569, CVE-2024-56570,

CVE-2024-56572, CVE-2024-56573, CVE-2024-56574, CVE-2024-56575,

CVE-2024-56576, CVE-2024-56577, CVE-2024-56578, CVE-2024-56579,

CVE-2024-56580, CVE-2024-56581, CVE-2024-56583, CVE-2024-56584,

CVE-2024-56586, CVE-2024-56587, CVE-2024-56588, CVE-2024-56589,

CVE-2024-56590, CVE-2024-56592, CVE-2024-56593, CVE-2024-56594,

CVE-2024-56596, CVE-2024-56597, CVE-2024-56599, CVE-2024-56600,

CVE-2024-56601, CVE-2024-56602, CVE-2024-56603, CVE-2024-56604,

CVE-2024-56605, CVE-2024-56606, CVE-2024-56607, CVE-2024-56608,

CVE-2024-56609, CVE-2024-56610, CVE-2024-56611, CVE-2024-56613,

CVE-2024-56615, CVE-2024-56616, CVE-2024-56619, CVE-2024-56620,

CVE-2024-56621, CVE-2024-56622, CVE-2024-56623, CVE-2024-56625,

CVE-2024-56626, CVE-2024-56627, CVE-2024-56629, CVE-2024-56630,

CVE-2024-56631, CVE-2024-56632, CVE-2024-56633, CVE-2024-56634,

CVE-2024-56635, CVE-2024-56636, CVE-2024-56637, CVE-2024-56638,

CVE-2024-56640, CVE-2024-56641, CVE-2024-56642, CVE-2024-56643,

CVE-2024-56644, CVE-2024-56645, CVE-2024-56647, CVE-2024-56648,

CVE-2024-56649, CVE-2024-56650, CVE-2024-56651, CVE-2024-56677,

CVE-2024-56678, CVE-2024-56679, CVE-2024-56681, CVE-2024-56683,

CVE-2024-56685, CVE-2024-56687, CVE-2024-56688, CVE-2024-56689,

CVE-2024-56690, CVE-2024-56691, CVE-2024-56692, CVE-2024-56693,

CVE-2024-56694, CVE-2024-56698, CVE-2024-56700, CVE-2024-56701,

CVE-2024-56703, CVE-2024-56704, CVE-2024-56705, CVE-2024-56707,

CVE-2024-56708, CVE-2024-56720, CVE-2024-56721, CVE-2024-56722,

CVE-2024-56723, CVE-2024-56724, CVE-2024-56725, CVE-2024-56726,

CVE-2024-56727, CVE-2024-56728, CVE-2024-56729, CVE-2024-56739,

CVE-2024-56742, CVE-2024-56744, CVE-2024-56745, CVE-2024-56746,

CVE-2024-56747, CVE-2024-56748, CVE-2024-56751, CVE-2024-56752,

CVE-2024-56754, CVE-2024-56755, CVE-2024-56756, CVE-2024-56765,

CVE-2024-56771, CVE-2024-56772, CVE-2024-56773, CVE-2024-56774,

CVE-2024-56775, CVE-2024-56776, CVE-2024-56777, CVE-2024-56778,

CVE-2024-56779, CVE-2024-56780, CVE-2024-56781, CVE-2024-56782,

CVE-2024-56783, CVE-2024-56785, CVE-2024-56786, CVE-2024-56787,

CVE-2024-57838, CVE-2024-57843, CVE-2024-57849, CVE-2024-57850,

CVE-2024-57872, CVE-2024-57874, CVE-2024-57876, CVE-2025-21700,

CVE-2025-21701, CVE-2025-21702, CVE-2025-21756, CVE-2025-21831,

CVE-2025-21993

Severity

important

Lowest

Low

Medium

High

Critical

Ubuntu Security Notice USN-7453-1

Topics Covered

security advisory update instructions ubuntu linux kernel system reboot real-time systems

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Ubuntu 24.04 LTS Security Advisory: Kernel Real-time Update Required

Summary

Topics Covered

Update Instructions

References

Topics Covered

Package Information

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Ubuntu 24.04 LTS Security Advisory: Kernel Real-time Update Required

Summary

Topics Covered

Update Instructions

References

Topics Covered

Package Information

Get the latest News and Insights

Related Articles

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