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==========================================================================
Ubuntu Security Notice USN-7931-1
December 15, 2025
linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke,
linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency,
linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8,
linux-nvidia-lowlatency, linux-oracle, linux-oracle-6.8 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-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) 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-nvidia: Linux kernel for NVIDIA systems
- linux-nvidia-lowlatency: Linux low latency kernel for NVIDIA systems
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-aws-6.8: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp-6.8: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe-6.8: Linux hardware enablement (HWE) kernel
- linux-ibm-6.8: Linux kernel for IBM cloud systems
- linux-lowlatency-hwe-6.8: Linux low latency kernel
- linux-nvidia-6.8: Linux kernel for NVIDIA systems
- linux-oracle-6.8: Linux kernel for Oracle Cloud 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:
- Cryptographic API;
- Media drivers;
- Memory management;
- Appletalk network protocol;
- Netfilter;
(CVE-2025-37958, CVE-2025-38666, CVE-2025-39964, CVE-2025-39993,
CVE-2025-40018)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
linux-image-6.8.0-1028-gkeop 6.8.0-1028.31
linux-image-6.8.0-1041-gke 6.8.0-1041.46
linux-image-6.8.0-1041-gke-64k 6.8.0-1041.46
linux-image-6.8.0-1041-oracle 6.8.0-1041.42
linux-image-6.8.0-1041-oracle-64k 6.8.0-1041.42
linux-image-6.8.0-1042-ibm 6.8.0-1042.42
linux-image-6.8.0-1044-aws 6.8.0-1044.46
linux-image-6.8.0-1044-aws-64k 6.8.0-1044.46
linux-image-6.8.0-1044-nvidia 6.8.0-1044.47
linux-image-6.8.0-1044-nvidia-64k 6.8.0-1044.47
linux-image-6.8.0-1044-nvidia-lowlatency 6.8.0-1044.47.1
linux-image-6.8.0-1044-nvidia-lowlatency-64k 6.8.0-1044.47.1
linux-image-6.8.0-1045-gcp 6.8.0-1045.48
linux-image-6.8.0-1045-gcp-64k 6.8.0-1045.48
linux-image-6.8.0-90-generic 6.8.0-90.91
linux-image-6.8.0-90-generic-64k 6.8.0-90.91
linux-image-6.8.0-90-lowlatency 6.8.0-90.91.1
linux-image-6.8.0-90-lowlatency-64k 6.8.0-90.91.1
linux-image-aws-6.8 6.8.0-1044.46
linux-image-aws-64k-6.8 6.8.0-1044.46
linux-image-aws-64k-lts-24.04 6.8.0-1044.46
linux-image-aws-lts-24.04 6.8.0-1044.46
linux-image-gcp-6.8 6.8.0-1045.48
linux-image-gcp-64k-6.8 6.8.0-1045.48
linux-image-gcp-64k-lts-24.04 6.8.0-1045.48
linux-image-gcp-lts-24.04 6.8.0-1045.48
linux-image-generic 6.8.0-90.91
linux-image-generic-6.8 6.8.0-90.91
linux-image-generic-64k 6.8.0-90.91
linux-image-generic-64k-6.8 6.8.0-90.91
linux-image-generic-lpae 6.8.0-90.91
linux-image-gke 6.8.0-1041.46
linux-image-gke-6.8 6.8.0-1041.46
linux-image-gke-64k 6.8.0-1041.46
linux-image-gke-64k-6.8 6.8.0-1041.46
linux-image-gkeop 6.8.0-1028.31
linux-image-gkeop-6.8 6.8.0-1028.31
linux-image-ibm 6.8.0-1042.42
linux-image-ibm-6.8 6.8.0-1042.42
linux-image-ibm-classic 6.8.0-1042.42
linux-image-ibm-lts-24.04 6.8.0-1042.42
linux-image-intel-iotg 6.8.0-90.91
linux-image-kvm 6.8.0-90.91
linux-image-lowlatency 6.8.0-90.91.1
linux-image-lowlatency-6.8 6.8.0-90.91.1
linux-image-lowlatency-64k 6.8.0-90.91.1
linux-image-lowlatency-64k-6.8 6.8.0-90.91.1
linux-image-nvidia 6.8.0-1044.47
linux-image-nvidia-6.8 6.8.0-1044.47
linux-image-nvidia-64k 6.8.0-1044.47
linux-image-nvidia-64k-6.8 6.8.0-1044.47
linux-image-nvidia-lowlatency 6.8.0-1044.47.1
linux-image-nvidia-lowlatency-6.8 6.8.0-1044.47.1
linux-image-nvidia-lowlatency-64k 6.8.0-1044.47.1
linux-image-nvidia-lowlatency-64k-6.8 6.8.0-1044.47.1
linux-image-oracle-6.8 6.8.0-1041.42
linux-image-oracle-64k-6.8 6.8.0-1041.42
linux-image-oracle-64k-lts-24.04 6.8.0-1041.42
linux-image-oracle-lts-24.04 6.8.0-1041.42
linux-image-virtual 6.8.0-90.91
linux-image-virtual-6.8 6.8.0-90.91
Ubuntu 22.04 LTS
linux-image-6.8.0-1041-oracle 6.8.0-1041.42~22.04.1
linux-image-6.8.0-1041-oracle-64k 6.8.0-1041.42~22.04.1
linux-image-6.8.0-1042-ibm 6.8.0-1042.42~22.04.1
linux-image-6.8.0-1044-aws 6.8.0-1044.46~22.04.1
linux-image-6.8.0-1044-aws-64k 6.8.0-1044.46~22.04.1
linux-image-6.8.0-1044-nvidia 6.8.0-1044.47~22.04.1
linux-image-6.8.0-1044-nvidia-64k 6.8.0-1044.47~22.04.1
linux-image-6.8.0-1045-gcp 6.8.0-1045.48~22.04.1
linux-image-6.8.0-1045-gcp-64k 6.8.0-1045.48~22.04.1
linux-image-6.8.0-90-generic 6.8.0-90.91~22.04.1
linux-image-6.8.0-90-generic-64k 6.8.0-90.91~22.04.1
linux-image-6.8.0-90-lowlatency 6.8.0-90.91.1~22.04.1
linux-image-6.8.0-90-lowlatency-64k 6.8.0-90.91.1~22.04.1
linux-image-aws 6.8.0-1044.46~22.04.1
linux-image-aws-6.8 6.8.0-1044.46~22.04.1
linux-image-aws-64k 6.8.0-1044.46~22.04.1
linux-image-aws-64k-6.8 6.8.0-1044.46~22.04.1
linux-image-gcp 6.8.0-1045.48~22.04.1
linux-image-gcp-6.8 6.8.0-1045.48~22.04.1
linux-image-gcp-64k 6.8.0-1045.48~22.04.1
linux-image-gcp-64k-6.8 6.8.0-1045.48~22.04.1
linux-image-generic-6.8 6.8.0-90.91~22.04.1
linux-image-generic-64k-6.8 6.8.0-90.91~22.04.1
linux-image-generic-64k-hwe-22.04 6.8.0-90.91~22.04.1
linux-image-generic-hwe-22.04 6.8.0-90.91~22.04.1
linux-image-ibm-6.8 6.8.0-1042.42~22.04.1
linux-image-lowlatency-6.8 6.8.0-90.91.1~22.04.1
linux-image-lowlatency-64k-6.8 6.8.0-90.91.1~22.04.1
linux-image-lowlatency-64k-hwe-22.04 6.8.0-90.91.1~22.04.1
linux-image-lowlatency-hwe-22.04 6.8.0-90.91.1~22.04.1
linux-image-nvidia-6.8 6.8.0-1044.47~22.04.1
linux-image-nvidia-64k-6.8 6.8.0-1044.47~22.04.1
linux-image-nvidia-64k-hwe-22.04 6.8.0-1044.47~22.04.1
linux-image-nvidia-hwe-22.04 6.8.0-1044.47~22.04.1
linux-image-oem-22.04 6.8.0-90.91~22.04.1
linux-image-oem-22.04a 6.8.0-90.91~22.04.1
linux-image-oem-22.04b 6.8.0-90.91~22.04.1
linux-image-oem-22.04c 6.8.0-90.91~22.04.1
linux-image-oem-22.04d 6.8.0-90.91~22.04.1
linux-image-oracle 6.8.0-1041.42~22.04.1
linux-image-oracle-6.8 6.8.0-1041.42~22.04.1
linux-image-oracle-64k 6.8.0-1041.42~22.04.1
linux-image-oracle-64k-6.8 6.8.0-1041.42~22.04.1
linux-image-virtual-6.8 6.8.0-90.91~22.04.1
linux-image-virtual-hwe-22.04 6.8.0-90.91~22.04.1
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-7931-1
CVE-2025-37958, CVE-2025-38666, CVE-2025-39964, CVE-2025-39993,
CVE-2025-40018
Package Information:
https://launchpad.net/ubuntu/+source/linux/6.8.0-90.91
https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1044.46
https://launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1045.48
https://launchpad.net/ubuntu/+source/linux-gke/6.8.0-1041.46
https://launchpad.net/ubuntu/+source/linux-gkeop/6.8.0-1028.31
https://launchpad.net/ubuntu/+source/linux-ibm/6.8.0-1042.42
https://launchpad.net/ubuntu/+source/linux-lowlatency/6.8.0-90.91.1
https://launchpad.net/ubuntu/+source/linux-nvidia/6.8.0-1044.47
https://launchpad.net/ubuntu/+source/linux-nvidia-lowlatency/6.8.0-1044.47.1
https://launchpad.net/ubuntu/+source/linux-oracle/6.8.0-1041.42
https://launchpad.net/ubuntu/+source/linux-aws-6.8/6.8.0-1044.46~22.04.1
https://launchpad.net/ubuntu/+source/linux-gcp-6.8/6.8.0-1045.48~22.04.1
https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-90.91~22.04.1
https://launchpad.net/ubuntu/+source/linux-ibm-6.8/6.8.0-1042.42~22.04.1
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-90.91.1~22.04.1
https://launchpad.net/ubuntu/+source/linux-nvidia-6.8/6.8.0-1044.47~22.04.1
https://launchpad.net/ubuntu/+source/linux-oracle-6.8/6.8.0-1041.42~22.04.1
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