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==========================================================================
Ubuntu Security Notice USN-7835-1
October 22, 2025
linux, linux-aws, linux-azure, linux-azure-6.8, linux-gcp, linux-gkeop,
linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8,
linux-oracle vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
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;
- Ublk userspace block driver;
- Clock framework and drivers;
- GPU drivers;
- IIO subsystem;
- InfiniBand drivers;
- Media drivers;
- MemoryStick subsystem;
- Network drivers;
- NTB driver;
- PCI subsystem;
- Remote Processor subsystem;
- Thermal drivers;
- Virtio Host (VHOST) subsystem;
- 9P distributed file system;
- File systems infrastructure;
- JFS file system;
- Network file system (NFS) server daemon;
- NTFS3 file system;
- SMB network file system;
- Memory management;
- RDMA verbs API;
- Kernel fork() syscall;
- Tracing infrastructure;
- Watch queue notification mechanism;
- Asynchronous Transfer Mode (ATM) subsystem;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- Netfilter;
- Network traffic control;
- SCTP protocol;
- TLS protocol;
- SoC Audio for Freescale CPUs drivers;
(CVE-2025-39728, CVE-2025-23136, CVE-2025-22062, CVE-2025-22035,
CVE-2025-22020, CVE-2025-22083, CVE-2025-22071, CVE-2025-22060,
CVE-2025-22073, CVE-2025-22044, CVE-2025-22063, CVE-2025-22079,
CVE-2025-22057, CVE-2025-22095, CVE-2025-39735, CVE-2025-39682,
CVE-2025-22058, CVE-2025-22021, CVE-2025-22018, CVE-2025-22056,
CVE-2025-22054, CVE-2025-22080, CVE-2025-22039, CVE-2025-22019,
CVE-2025-22038, CVE-2025-22028, CVE-2023-53034, CVE-2024-58092,
CVE-2025-38637, CVE-2025-22089, CVE-2025-40114, CVE-2025-22068,
CVE-2025-37937, CVE-2025-22070, CVE-2025-22072, CVE-2025-22086,
CVE-2025-22050, CVE-2025-22040, CVE-2025-22065, CVE-2025-38575,
CVE-2025-22064, CVE-2025-22033, CVE-2025-22041, CVE-2025-22090,
CVE-2025-22036, CVE-2025-23138, CVE-2025-22047, CVE-2025-38240,
CVE-2025-22066, CVE-2025-22042, CVE-2025-38152, CVE-2025-22055,
CVE-2025-22081, CVE-2025-22045, CVE-2025-22053, CVE-2025-22075,
CVE-2025-22027, CVE-2025-22025, CVE-2025-22097)
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
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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