========================================================================== Ubuntu Security Notice USN-8254-1 May 07, 2026
linux, linux-aws, linux-aws-6.8, linux-aws-fips, linux-fips, linux-gcp,
linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm,
linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle,
linux-oracle-6.8, linux-raspi, linux-raspi-realtime, linux-realtime,
linux-realtime-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-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS
- linux-fips: Linux kernel with FIPS
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with FIPS
- 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-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi: Linux kernel for Raspberry Pi systems
- linux-raspi-realtime: Linux kernel for Raspberry Pi Real-time systems
- linux-realtime: Linux kernel for Real-time systems
- linux-aws-6.8: Linux kernel for Amazon Web Services (AWS) 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-oracle-6.8: Linux kernel for Oracle Cloud systems
- linux-realtime-6.8: 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:
- Network drivers;
- NVME drivers;
- Netfilter;
(CVE-2026-23112, CVE-2026-23231, CVE-2026-23273)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
linux-image-6.8.0-1038-gkeop 6.8.0-1038.41
linux-image-6.8.0-1050-oracle 6.8.0-1050.51
linux-image-6.8.0-1050-oracle-64k 6.8.0-1050.51
linux-image-6.8.0-1051-gke 6.8.0-1051.57
linux-image-6.8.0-1051-gke-64k 6.8.0-1051.57
linux-image-6.8.0-1052-ibm 6.8.0-1052.52
linux-image-6.8.0-1053-aws 6.8.0-1053.56
linux-image-6.8.0-1053-aws-64k 6.8.0-1053.56
linux-image-6.8.0-1053-aws-fips 6.8.0-1053.56+fips1
Available with Ubuntu Pro
linux-image-6.8.0-1053-raspi 6.8.0-1053.57
linux-image-6.8.0-1055-gcp 6.8.0-1055.58
linux-image-6.8.0-1055-gcp-64k 6.8.0-1055.58
linux-image-6.8.0-1055-gcp-fips 6.8.0-1055.58+fips1
Available with Ubuntu Pro
linux-image-6.8.0-111-fips 6.8.0-111.111+fips1
Available with Ubuntu Pro
linux-image-6.8.0-111-generic 6.8.0-111.111
linux-image-6.8.0-111-generic-64k 6.8.0-111.111
linux-image-6.8.0-111-lowlatency 6.8.0-111.111.1
linux-image-6.8.0-111-lowlatency-64k 6.8.0-111.111.1
linux-image-6.8.0-2043-raspi-realtime 6.8.0-2043.44
Available with Ubuntu Pro
linux-image-6.8.1-1048-realtime 6.8.1-1048.49
Available with Ubuntu Pro
linux-image-aws-6.8 6.8.0-1053.56
linux-image-aws-64k-6.8 6.8.0-1053.56
linux-image-aws-64k-lts-24.04 6.8.0-1053.56
linux-image-aws-fips 6.8.0-1053.56+fips1
Available with Ubuntu Pro
linux-image-aws-fips-6.8 6.8.0-1053.56+fips1
Available with Ubuntu Pro
linux-image-aws-lts-24.04 6.8.0-1053.56
linux-image-fips 6.8.0-111.111+fips1
Available with Ubuntu Pro
linux-image-fips-6.8 6.8.0-111.111+fips1
Available with Ubuntu Pro
linux-image-gcp-6.8 6.8.0-1055.58
linux-image-gcp-64k-6.8 6.8.0-1055.58
linux-image-gcp-64k-lts-24.04 6.8.0-1055.58
linux-image-gcp-fips 6.8.0-1055.58+fips1
Available with Ubuntu Pro
linux-image-gcp-fips-6.8 6.8.0-1055.58+fips1
Available with Ubuntu Pro
linux-image-gcp-lts-24.04 6.8.0-1055.58
linux-image-generic 6.8.0-111.111
linux-image-generic-6.8 6.8.0-111.111
linux-image-generic-64k 6.8.0-111.111
linux-image-generic-64k-6.8 6.8.0-111.111
linux-image-generic-lpae 6.8.0-111.111
linux-image-gke 6.8.0-1051.57
linux-image-gke-6.8 6.8.0-1051.57
linux-image-gke-64k 6.8.0-1051.57
linux-image-gke-64k-6.8 6.8.0-1051.57
linux-image-gkeop 6.8.0-1038.41
linux-image-gkeop-6.8 6.8.0-1038.41
linux-image-ibm 6.8.0-1052.52
linux-image-ibm-6.8 6.8.0-1052.52
linux-image-ibm-classic 6.8.0-1052.52
linux-image-ibm-lts-24.04 6.8.0-1052.52
linux-image-intel-iot-realtime 6.8.1-1048.49
Available with Ubuntu Pro
linux-image-intel-iotg 6.8.0-111.111
linux-image-kvm 6.8.0-111.111
linux-image-lowlatency 6.8.0-111.111.1
linux-image-lowlatency-6.8 6.8.0-111.111.1
linux-image-lowlatency-64k 6.8.0-111.111.1
linux-image-lowlatency-64k-6.8 6.8.0-111.111.1
linux-image-oracle-6.8 6.8.0-1050.51
linux-image-oracle-64k-6.8 6.8.0-1050.51
linux-image-oracle-64k-lts-24.04 6.8.0-1050.51
linux-image-oracle-lts-24.04 6.8.0-1050.51
linux-image-raspi 6.8.0-1053.57
linux-image-raspi-6.8 6.8.0-1053.57
linux-image-raspi-realtime 6.8.0-2043.44
Available with Ubuntu Pro
linux-image-raspi-realtime-6.8 6.8.0-2043.44
Available with Ubuntu Pro
linux-image-realtime 6.8.1-1048.49
Available with Ubuntu Pro
linux-image-realtime-6.8.1 6.8.1-1048.49
Available with Ubuntu Pro
linux-image-virtual 6.8.0-111.111
linux-image-virtual-6.8 6.8.0-111.111
Ubuntu 22.04 LTS
linux-image-6.8.0-1050-oracle 6.8.0-1050.51~22.04.1
linux-image-6.8.0-1050-oracle-64k 6.8.0-1050.51~22.04.1
linux-image-6.8.0-1052-ibm 6.8.0-1052.52~22.04.1
linux-image-6.8.0-1053-aws 6.8.0-1053.56~22.04.1
linux-image-6.8.0-1053-aws-64k 6.8.0-1053.56~22.04.1
linux-image-6.8.0-111-generic 6.8.0-111.111~22.04.1
linux-image-6.8.0-111-generic-64k 6.8.0-111.111~22.04.1
linux-image-6.8.0-111-lowlatency 6.8.0-111.111.1~22.04.1
linux-image-6.8.0-111-lowlatency-64k 6.8.0-111.111.1~22.04.1
linux-image-6.8.1-1048-realtime 6.8.1-1048.49~22.04.1
Available with Ubuntu Pro
linux-image-aws 6.8.0-1053.56~22.04.1
linux-image-aws-6.8 6.8.0-1053.56~22.04.1
linux-image-aws-64k 6.8.0-1053.56~22.04.1
linux-image-aws-64k-6.8 6.8.0-1053.56~22.04.1
linux-image-generic-6.8 6.8.0-111.111~22.04.1
linux-image-generic-64k-6.8 6.8.0-111.111~22.04.1
linux-image-generic-64k-hwe-22.04 6.8.0-111.111~22.04.1
linux-image-generic-hwe-22.04 6.8.0-111.111~22.04.1
linux-image-ibm-6.8 6.8.0-1052.52~22.04.1
linux-image-lowlatency-6.8 6.8.0-111.111.1~22.04.1
linux-image-lowlatency-64k-6.8 6.8.0-111.111.1~22.04.1
linux-image-lowlatency-64k-hwe-22.04 6.8.0-111.111.1~22.04.1
linux-image-lowlatency-hwe-22.04 6.8.0-111.111.1~22.04.1
linux-image-oem-22.04 6.8.0-111.111~22.04.1
linux-image-oem-22.04a 6.8.0-111.111~22.04.1
linux-image-oem-22.04b 6.8.0-111.111~22.04.1
linux-image-oem-22.04c 6.8.0-111.111~22.04.1
linux-image-oem-22.04d 6.8.0-111.111~22.04.1
linux-image-oracle 6.8.0-1050.51~22.04.1
linux-image-oracle-6.8 6.8.0-1050.51~22.04.1
linux-image-oracle-64k 6.8.0-1050.51~22.04.1
linux-image-oracle-64k-6.8 6.8.0-1050.51~22.04.1
linux-image-realtime-6.8.1 6.8.1-1048.49~22.04.1
Available with Ubuntu Pro
linux-image-realtime-hwe-22.04 6.8.1-1048.49~22.04.1
Available with Ubuntu Pro
linux-image-virtual-6.8 6.8.0-111.111~22.04.1
linux-image-virtual-hwe-22.04 6.8.0-111.111~22.04.1
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-8254-1
CVE-2026-23112, CVE-2026-23231, CVE-2026-23273
Package Information:
https://launchpad.net/ubuntu/+source/linux/6.8.0-111.111
https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1053.56
https://launchpad.net/ubuntu/+source/linux-aws-fips/6.8.0-1053.56+fips1
https://launchpad.net/ubuntu/+source/linux-fips/6.8.0-111.111+fips1
https://launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1055.58
https://launchpad.net/ubuntu/+source/linux-gcp-fips/6.8.0-1055.58+fips1
https://launchpad.net/ubuntu/+source/linux-gke/6.8.0-1051.57
https://launchpad.net/ubuntu/+source/linux-gkeop/6.8.0-1038.41
https://launchpad.net/ubuntu/+source/linux-ibm/6.8.0-1052.52
https://launchpad.net/ubuntu/+source/linux-lowlatency/6.8.0-111.111.1
https://launchpad.net/ubuntu/+source/linux-oracle/6.8.0-1050.51
https://launchpad.net/ubuntu/+source/linux-raspi/6.8.0-1053.57
https://launchpad.net/ubuntu/+source/linux-raspi-realtime/6.8.0-2043.44
https://launchpad.net/ubuntu/+source/linux-realtime/6.8.1-1048.49
https://launchpad.net/ubuntu/+source/linux-aws-6.8/6.8.0-1053.56~22.04.1
https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-111.111~22.04.1
https://launchpad.net/ubuntu/+source/linux-ibm-6.8/6.8.0-1052.52~22.04.1
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-111.111.1~22.04.1
https://launchpad.net/ubuntu/+source/linux-oracle-6.8/6.8.0-1050.51~22.04.1
https://launchpad.net/ubuntu/+source/linux-realtime-6.8/6.8.1-1048.49~22.04.1
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