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Ubuntu 24.04: USN-7835-1 Linux Kernel Critical Security Fix

ubuntu
Calendar Grey October 22, 2025
Dist Ubuntu Esm H88
Explore Ubuntu 24.04 LTS Kernel updates addressing several critical issues that could compromise security.
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-azure: Linux kernel for Microsoft Azure Cloud systems

- linux-gcp: Linux kernel for Google Cloud Platform (GCP) 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-oracle: Linux kernel for Oracle Cloud systems

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

- linux-ibm-6.8: Linux kernel for IBM cloud systems

- linux-lowlatency-hwe-6.8: Linux low latency kernel

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;

- PowerPC architecture;

- x86 architecture;

- ACPI drivers;

- ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical Ubuntu kernel attack flaw

Update Instructions

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

Ubuntu 24.04 LTS
   linux-image-6.8.0-1025-gkeop    6.8.0-1025.28
   linux-image-6.8.0-1038-oracle   6.8.0-1038.39
   linux-image-6.8.0-1038-oracle-64k  6.8.0-1038.39
   linux-image-6.8.0-1039-ibm      6.8.0-1039.39
   linux-image-6.8.0-1041-aws      6.8.0-1041.43
   linux-image-6.8.0-1041-aws-64k  6.8.0-1041.43
   linux-image-6.8.0-1041-azure    6.8.0-1041.47+1
   linux-image-6.8.0-1042-gcp      6.8.0-1042.45
   linux-image-6.8.0-1042-gcp-64k  6.8.0-1042.45
   linux-image-6.8.0-86-generic    6.8.0-86.87
   linux-image-6.8.0-86-generic-64k  6.8.0-86.87
   linux-image-6.8.0-86-lowlatency  6.8.0-86.87.1
   linux-image-6.8.0-86-lowlatency-64k  6.8.0-86.87.1
   linux-image-aws-6.8             6.8.0-1041.43
   linux-image-aws-64k-6.8         6.8.0-1041.43
   linux-image-aws-64k-lts-24.04   6.8.0-1041.43
   linux-image-aws-lts-24.04       6.8.0-1041.43
   linux-image-azure-6.8           6.8.0-1041.47+1
   linux-image-azure-lts-24.04     6.8.0-1041.47+1
   linux-image-gcp-6.8             6.8.0-1042.45
   linux-image-gcp-64k-6.8         6.8.0-1042.45
   linux-image-gcp-64k-lts-24.04   6.8.0-1042.45
   linux-image-gcp-lts-24.04       6.8.0-1042.45
   linux-image-generic             6.8.0-86.87
   linux-image-generic-6.8         6.8.0-86.87
   linux-image-generic-64k         6.8.0-86.87
   linux-image-generic-64k-6.8     6.8.0-86.87
   linux-image-generic-lpae        6.8.0-86.87
   linux-image-gkeop               6.8.0-1025.28
   linux-image-gkeop-6.8           6.8.0-1025.28
   linux-image-ibm                 6.8.0-1039.39
   linux-image-ibm-6.8             6.8.0-1039.39
   linux-image-ibm-classic         6.8.0-1039.39
   linux-image-ibm-lts-24.04       6.8.0-1039.39
   linux-image-kvm                 6.8.0-86.87
   linux-image-lowlatency          6.8.0-86.87.1
   linux-image-lowlatency-6.8      6.8.0-86.87.1
   linux-image-lowlatency-64k      6.8.0-86.87.1
   linux-image-lowlatency-64k-6.8  6.8.0-86.87.1
   linux-image-oracle-6.8          6.8.0-1038.39
   linux-image-oracle-64k-6.8      6.8.0-1038.39
   linux-image-oracle-64k-lts-24.04  6.8.0-1038.39
   linux-image-oracle-lts-24.04    6.8.0-1038.39
   linux-image-virtual             6.8.0-86.87
   linux-image-virtual-6.8         6.8.0-86.87

Ubuntu 22.04 LTS
   linux-image-6.8.0-1039-ibm      6.8.0-1039.39~22.04.1
   linux-image-6.8.0-1041-azure    6.8.0-1041.47~22.04.1
   linux-image-6.8.0-86-lowlatency  6.8.0-86.87.1~22.04.1
   linux-image-6.8.0-86-lowlatency-64k  6.8.0-86.87.1~22.04.1
   linux-image-azure               6.8.0-1041.47~22.04.1
   linux-image-azure-6.8           6.8.0-1041.47~22.04.1
   linux-image-ibm-6.8             6.8.0-1039.39~22.04.1
   linux-image-lowlatency-6.8      6.8.0-86.87.1~22.04.1
   linux-image-lowlatency-64k-6.8  6.8.0-86.87.1~22.04.1
   linux-image-lowlatency-64k-hwe-22.04  6.8.0-86.87.1~22.04.1
   linux-image-lowlatency-hwe-22.04  6.8.0-86.87.1~22.04.1

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-7835-1

CVE-2023-53034, CVE-2024-58092, CVE-2025-22018, CVE-2025-22019,

CVE-2025-22020, CVE-2025-22021, CVE-2025-22025, CVE-2025-22027,

CVE-2025-22028, CVE-2025-22033, CVE-2025-22035, CVE-2025-22036,

CVE-2025-22038, CVE-2025-22039, CVE-2025-22040, CVE-2025-22041,

CVE-2025-22042, CVE-2025-22044, CVE-2025-22045, CVE-2025-22047,

CVE-2025-22050, CVE-2025-22053, CVE-2025-22054, CVE-2025-22055,

CVE-2025-22056, CVE-2025-22057, CVE-2025-22058, CVE-2025-22060,

CVE-2025-22062, CVE-2025-22063, CVE-2025-22064, CVE-2025-22065,

CVE-2025-22066, CVE-2025-22068, CVE-2025-22070, CVE-2025-22071,

CVE-2025-22072, CVE-2025-22073, CVE-2025-22075, CVE-2025-22079,

CVE-2025-22080, CVE-2025-22081, CVE-2025-22083, CVE-2025-22086,

CVE-2025-22089, CVE-2025-22090, CVE-2025-22095, CVE-2025-22097,

CVE-2025-23136, CVE-2025-23138, CVE-2025-37937, CVE-2025-38152,

CVE-2025-38240, CVE-2025-38575, CVE-2025-38637, CVE-2025-39682,

CVE-2025-39728, CVE-2025-39735, CVE-2025-40114

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7835-1

Topics%20covered

Topics Covered

security advisory critical Ubuntu kernel attack flaw

Package Information

https://launchpad.net/ubuntu/+source/linux/6.8.0-86.87
https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1041.43
https://launchpad.net/ubuntu/+source/linux-azure/6.8.0-1041.47
https://launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1042.45
https://launchpad.net/ubuntu/+source/linux-gkeop/6.8.0-1025.28
https://launchpad.net/ubuntu/+source/linux-ibm/6.8.0-1039.39
https://launchpad.net/ubuntu/+source/linux-lowlatency/6.8.0-86.87.1
https://launchpad.net/ubuntu/+source/linux-oracle/6.8.0-1038.39
https://launchpad.net/ubuntu/+source/linux-azure-6.8/6.8.0-1041.47~22.04.1
https://launchpad.net/ubuntu/+source/linux-ibm-6.8/6.8.0-1039.39~22.04.1
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-86.87.1~22.04.1

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