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Ubuntu 24.04: Linux Kernel Critical Information Leak USN-7833-2

ubuntu
Calendar Grey October 22, 2025
Dist Ubuntu Esm H88
Several security flaws fixed in the Linux kernel for Ubuntu 24.04, addressing data leakage risks and ensuring system integrity.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-realtime-6.14: Linux kernel for Real-time systems

Details:

Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos,

and Flavien Solt discovered that some AMD processors may allow an attacker

to infer data from previous stores, potentially resulting in the leakage of

privileged information. A local attacker could possibly use this to expose

sensitive information. (CVE-2024-36350, CVE-2024-36357)

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;

- PowerPC architecture;

- RISC-V architecture;

- S390 architecture;

- x86 architecture;

- ACPI drivers;

- Serial ATA and Parallel ATA drivers;

- Drivers core;

- ATA over ethernet (AOE) driver;

- Ublk userspace block driver;

- ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory information leak kernel update critical Ubuntu Real Time

Update Instructions

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

Ubuntu 24.04 LTS
   linux-image-6.14.0-1014-realtime  6.14.0-1014.14~24.04.1
                                   Available with Ubuntu Pro
   linux-image-realtime-6.14       6.14.0-1014.14~24.04.1
                                   Available with Ubuntu Pro
   linux-image-realtime-hwe-24.04  6.14.0-1014.14~24.04.1
                                   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-7833-2

https://ubuntu.com/security/notices/USN-7833-1

CVE-2024-36350, CVE-2024-36357, CVE-2025-38084, CVE-2025-38085,

CVE-2025-38086, CVE-2025-38087, CVE-2025-38089, CVE-2025-38090,

CVE-2025-38179, CVE-2025-38181, CVE-2025-38182, CVE-2025-38183,

CVE-2025-38184, CVE-2025-38186, CVE-2025-38188, CVE-2025-38189,

CVE-2025-38191, CVE-2025-38192, CVE-2025-38194, CVE-2025-38196,

CVE-2025-38197, CVE-2025-38198, CVE-2025-38199, CVE-2025-38200,

CVE-2025-38201, CVE-2025-38202, CVE-2025-38203, CVE-2025-38204,

CVE-2025-38205, CVE-2025-38206, CVE-2025-38208, CVE-2025-38210,

CVE-2025-38211, CVE-2025-38212, CVE-2025-38217, CVE-2025-38218,

CVE-2025-38219, CVE-2025-38220, CVE-2025-38222, CVE-2025-38223,

CVE-2025-38224, CVE-2025-38225, CVE-2025-38226, CVE-2025-38227,

CVE-2025-38228, CVE-2025-38229, CVE-2025-38231, CVE-2025-38232,

CVE-2025-38233, CVE-2025-38234, CVE-2025-38236, CVE-2025-38237,

CVE-2025-38238, CVE-2025-38239, CVE-2025-38241, CVE-2025-38242,

CVE-2025-38244, CVE-2025-38245, CVE-2025-38246, CVE-2025-38248,

CVE-2025-38249, CVE-2025-38250, CVE-2025-38251, CVE-2025-38253,

CVE-2025-38254, CVE-2025-38255, CVE-2025-38256, CVE-2025-38257,

CVE-2025-38258, CVE-2025-38259, CVE-2025-38260, CVE-2025-38261,

CVE-2025-38262, CVE-2025-38263, CVE-2025-38264, CVE-2025-38320,

CVE-2025-38321, CVE-2025-38322, CVE-2025-38324, CVE-2025-38325,

CVE-2025-38326, CVE-2025-38328, CVE-2025-38329, CVE-2025-38330,

CVE-2025-38331, CVE-2025-38332, CVE-2025-38333, CVE-2025-38334,

CVE-2025-38336, CVE-2025-38337, CVE-2025-38338, CVE-2025-38339,

CVE-2025-38340, CVE-2025-38341, CVE-2025-38342, CVE-2025-38343,

CVE-2025-38344, CVE-2025-38345, CVE-2025-38346, CVE-2025-38347,

CVE-2025-38348, CVE-2025-38353, CVE-2025-38354, CVE-2025-38355,

CVE-2025-38356, CVE-2025-38359, CVE-2025-38360, CVE-2025-38361,

CVE-2025-38362, CVE-2025-38363, CVE-2025-38364, CVE-2025-38365,

CVE-2025-38368, CVE-2025-38369, CVE-2025-38370, CVE-2025-38371,

CVE-2025-38372, CVE-2025-38373, CVE-2025-38374, CVE-2025-38375,

CVE-2025-38376, CVE-2025-38377, CVE-2025-38381, CVE-2025-38382,

CVE-2025-38383, CVE-2025-38384, CVE-2025-38385, CVE-2025-38386,

CVE-2025-38387, CVE-2025-38388, CVE-2025-38389, CVE-2025-38390,

CVE-2025-38391, CVE-2025-38392, CVE-2025-38393, CVE-2025-38395,

CVE-2025-38396, CVE-2025-38399, CVE-2025-38400, CVE-2025-38401,

CVE-2025-38402, CVE-2025-38403, CVE-2025-38405, CVE-2025-38406,

CVE-2025-38407, CVE-2025-38408, CVE-2025-38409, CVE-2025-38410,

CVE-2025-38411, CVE-2025-38412, CVE-2025-38413, CVE-2025-38416,

CVE-2025-38417, CVE-2025-38418, CVE-2025-38419, CVE-2025-38420,

CVE-2025-38421, CVE-2025-38422, CVE-2025-38423, CVE-2025-38424,

CVE-2025-38425, CVE-2025-38426, CVE-2025-38427, CVE-2025-38428,

CVE-2025-38429, CVE-2025-38430, CVE-2025-38431, CVE-2025-38434,

CVE-2025-38435, CVE-2025-38436, CVE-2025-38523, CVE-2025-38541,

CVE-2025-39682

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7833-2

Topics%20covered

Topics Covered

security advisory information leak kernel update critical Ubuntu Real Time

Package Information

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