Ubuntu Security Notices
USN-8816-1

USN-8816-1: Linux kernel vulnerabilities

Publication date

24 September 2026

Overview

Several security issues were fixed in the Linux kernel.

Releases

26.04 LTS 24.04 LTS

Packages

linux - Linux kernel
linux-aws - Linux kernel for Amazon Web Services (AWS) systems
linux-aws-7.0 - Linux kernel for Amazon Web Services (AWS) systems
linux-hwe-7.0 - Linux hardware enablement (HWE) kernel
linux-ibm - Linux kernel for IBM cloud systems
linux-oracle - Linux kernel for Oracle Cloud systems
linux-raspi - Linux kernel for Raspberry Pi systems
linux-realtime - 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:

ARM64 architecture;
S390 architecture;
x86 architecture;
DRBD Distributed Replicated Block Device drivers;
InfiniBand drivers;
IOMMU subsystem;
Multiple devices driver;
Network drivers;
Microsoft Azure Network Adapter (MANA) driver;
NVME drivers;
TCM subsystem;
Virtio Host (VHOST) subsystem;
Xen hypervisor drivers;
AFS file system;
File systems infrastructure;
Network file systems library;
Network file system (NFS) client;
NTFS3 file system;
OCFS2 file system;
OrangeFS file system;
SMB network file system;
IPv4 networking;
Sun RPC protocol;
IPv6 networking;
IP tunnels...

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;
S390 architecture;
x86 architecture;
DRBD Distributed Replicated Block Device drivers;
InfiniBand drivers;
IOMMU subsystem;
Multiple devices driver;
Network drivers;
Microsoft Azure Network Adapter (MANA) driver;
NVME drivers;
TCM subsystem;
Virtio Host (VHOST) subsystem;
Xen hypervisor drivers;
AFS file system;
File systems infrastructure;
Network file systems library;
Network file system (NFS) client;
NTFS3 file system;
OCFS2 file system;
OrangeFS file system;
SMB network file system;
IPv4 networking;
Sun RPC protocol;
IPv6 networking;
IP tunnels definitions;
Netfilter;
TCP network protocol;
Locking primitives;
9P file system network protocol;
B.A.T.M.A.N. meshing protocol;
Networking core;
IFE protocol;
RxRPC session sockets;
Network traffic control;
SCTP protocol;
SMC sockets;
TIPC protocol;
XFRM subsystem

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release	Package Version
26.04 LTS resolute	linux-image-7.0.0-1012-oracle – 7.0.0-1012.12
	linux-image-7.0.0-1012-oracle-64k – 7.0.0-1012.12
	linux-image-7.0.0-1013-aws – 7.0.0-1013.13
	linux-image-7.0.0-1013-aws-64k – 7.0.0-1013.13
	linux-image-7.0.0-1014-ibm – 7.0.0-1014.14
	linux-image-7.0.0-1020-raspi – 7.0.0-1020.20
	linux-image-7.0.0-1020-raspi-realtime – 7.0.0-1020.20
	linux-image-7.0.0-34-generic – 7.0.0-34.34
	linux-image-7.0.0-34-generic-64k – 7.0.0-34.34
	linux-image-7.0.0-34-realtime – 7.0.0-34.34.1
	linux-image-7.0.0-34-realtime-64k – 7.0.0-34.34.1
	linux-image-aws – 7.0.0-1013.13
	linux-image-aws-64k – 7.0.0-1013.13
	linux-image-aws-64k-7.0 – 7.0.0-1013.13
	linux-image-aws-7.0 – 7.0.0-1013.13
	linux-image-generic – 7.0.0-34.34
	linux-image-generic-64k – 7.0.0-34.34
	linux-image-generic-64k-7.0 – 7.0.0-34.34
	linux-image-generic-64k-hwe-26.04 – 7.0.0-34.34
	linux-image-generic-7.0 – 7.0.0-34.34
	linux-image-generic-hwe-26.04 – 7.0.0-34.34
	linux-image-ibm – 7.0.0-1014.14
	linux-image-ibm-7.0 – 7.0.0-1014.14
	linux-image-oracle – 7.0.0-1012.12
	linux-image-oracle-64k – 7.0.0-1012.12
	linux-image-oracle-64k-7.0 – 7.0.0-1012.12
	linux-image-oracle-7.0 – 7.0.0-1012.12
	linux-image-raspi – 7.0.0-1020.20
	linux-image-raspi-7.0 – 7.0.0-1020.20
	linux-image-raspi-realtime – 7.0.0-1020.20
	linux-image-raspi-realtime-7.0 – 7.0.0-1020.20
	linux-image-realtime – 7.0.0-34.34.1
	linux-image-realtime-64k – 7.0.0-34.34.1
	linux-image-realtime-64k-7.0 – 7.0.0-34.34.1
	linux-image-realtime-64k-hwe-26.04 – 7.0.0-34.34.1
	linux-image-realtime-7.0 – 7.0.0-34.34.1
	linux-image-realtime-hwe-26.04 – 7.0.0-34.34.1
	linux-image-virtual – 7.0.0-34.34
	linux-image-virtual-7.0 – 7.0.0-34.34
	linux-image-virtual-hwe-26.04 – 7.0.0-34.34
24.04 LTS noble	linux-image-7.0.0-1013-aws – 7.0.0-1013.13~24.04.1
	linux-image-7.0.0-1013-aws-64k – 7.0.0-1013.13~24.04.1
	linux-image-7.0.0-34-generic – 7.0.0-34.34~24.04.1
	linux-image-7.0.0-34-generic-64k – 7.0.0-34.34~24.04.1
	linux-image-aws – 7.0.0-1013.13~24.04.1
	linux-image-aws-64k – 7.0.0-1013.13~24.04.1
	linux-image-aws-64k-7.0 – 7.0.0-1013.13~24.04.1
	linux-image-aws-7.0 – 7.0.0-1013.13~24.04.1
	linux-image-generic-64k-7.0 – 7.0.0-34.34~24.04.1
	linux-image-generic-64k-hwe-24.04 – 7.0.0-34.34~24.04.1
	linux-image-generic-7.0 – 7.0.0-34.34~24.04.1
	linux-image-generic-hwe-24.04 – 7.0.0-34.34~24.04.1
	linux-image-virtual-7.0 – 7.0.0-34.34~24.04.1
	linux-image-virtual-hwe-24.04 – 7.0.0-34.34~24.04.1