1. Ubuntu Security Notices
  2. USN-8096-1

USN-8096-1: Linux kernel vulnerabilities

Publication date

16 March 2026

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)

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:

  • PowerPC architecture;
  • x86 architecture;
  • Block layer subsystem;
  • Cryptographic API;
  • ACPI drivers;
  • ATM drivers;
  • Drivers core;
  • Network block device driver;
  • Bluetooth drivers;
  • Character device driver;
  • TPM device driver;
  • Data acquisition framework and drivers;
  • Counter interface...

Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)

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:

  • PowerPC architecture;
  • x86 architecture;
  • Block layer subsystem;
  • Cryptographic API;
  • ACPI drivers;
  • ATM drivers;
  • Drivers core;
  • Network block device driver;
  • Bluetooth drivers;
  • Character device driver;
  • TPM device driver;
  • Data acquisition framework and drivers;
  • Counter interface drivers;
  • CPU frequency scaling framework;
  • Intel Stratix 10 firmware drivers;
  • GPU drivers;
  • HID subsystem;
  • Hardware monitoring drivers;
  • IIO subsystem;
  • InfiniBand drivers;
  • Input Device core drivers;
  • Input Device (Tablet) drivers;
  • ISDN/mISDN subsystem;
  • Macintosh device drivers;
  • Media drivers;
  • MOST (Media Oriented Systems Transport) drivers;
  • MTD block device drivers;
  • Network drivers;
  • Mellanox network drivers;
  • Texas Instruments network drivers;
  • Ethernet team driver;
  • MediaTek network drivers;
  • NVME drivers;
  • PA-RISC drivers;
  • PCI subsystem;
  • Chrome hardware platform drivers;
  • x86 platform drivers;
  • ARM PM domains;
  • Voltage and Current Regulator drivers;
  • S/390 drivers;
  • SCSI subsystem;
  • Texas Instruments SoC drivers;
  • SPI subsystem;
  • Realtek RTL8723BS SDIO drivers;
  • TCM subsystem;
  • Cadence USB3 driver;
  • DesignWare USB3 driver;
  • USB Gadget drivers;
  • USB Host Controller drivers;
  • Renesas USBHS Controller drivers;
  • USB Mass Storage drivers;
  • USB Type-C Connector System Software Interface driver;
  • Backlight driver;
  • Framebuffer layer;
  • Watchdog drivers;
  • BFS file system;
  • BTRFS file system;
  • Ext4 file system;
  • F2FS file system;
  • FUSE (File system in Userspace);
  • HFS+ file system;
  • Journaling layer for block devices (JBD2);
  • JFS file system;
  • Network file system (NFS) client;
  • Network file system (NFS) server daemon;
  • File system notification infrastructure;
  • NTFS3 file system;
  • OCFS2 file system;
  • OrangeFS file system;
  • Proc file system;
  • SMB network file system;
  • XFS file system;
  • BPF subsystem;
  • Ethernet bridge;
  • Memory management;
  • Network traffic control;
  • io_uring subsystem;
  • Locking primitives;
  • Scheduler infrastructure;
  • Shadow Call Stack mechanism;
  • Tracing infrastructure;
  • Bluetooth subsystem;
  • CAIF protocol;
  • CAN network layer;
  • Ceph Core library;
  • Networking core;
  • Ethtool driver;
  • HSR network protocol;
  • IPv4 networking;
  • IPv6 networking;
  • MAC80211 subsystem;
  • Multipath TCP;
  • Netfilter;
  • NET/ROM layer;
  • NFC subsystem;
  • Open vSwitch;
  • Rose network layer;
  • SCTP protocol;
  • Network sockets;
  • Sun RPC protocol;
  • TIPC protocol;
  • VMware vSockets driver;
  • Wireless networking;
  • Rust bindings mechanism;
  • Integrity Measurement Architecture(IMA) framework;
  • Key management;
  • Simplified Mandatory Access Control Kernel framework;
  • FireWire sound drivers;
  • Turtle Beach Wavefront ALSA driver;
  • STMicroelectronics SoC drivers;
  • USB sound devices

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
22.04 LTS jammy linux-image-5.15.0-1055-nvidia-tegra –  5.15.0-1055.55
linux-image-5.15.0-1055-nvidia-tegra-rt –  5.15.0-1055.55
linux-image-5.15.0-1067-xilinx-zynqmp –  5.15.0-1067.71
linux-image-5.15.0-1086-gkeop –  5.15.0-1086.94
linux-image-5.15.0-1095-kvm –  5.15.0-1095.100
linux-image-5.15.0-1097-ibm –  5.15.0-1097.100
linux-image-5.15.0-1098-intel-iotg –  5.15.0-1098.104
linux-image-5.15.0-1098-nvidia –  5.15.0-1098.99
linux-image-5.15.0-1098-nvidia-lowlatency –  5.15.0-1098.99
linux-image-5.15.0-1100-oracle –  5.15.0-1100.106
linux-image-5.15.0-1103-aws –  5.15.0-1103.110
linux-image-5.15.0-1103-aws-64k –  5.15.0-1103.110
linux-image-5.15.0-1103-gcp –  5.15.0-1103.112
linux-image-5.15.0-173-generic –  5.15.0-173.183
linux-image-5.15.0-173-generic-64k –  5.15.0-173.183
linux-image-5.15.0-173-generic-lpae –  5.15.0-173.183
linux-image-5.15.0-173-lowlatency –  5.15.0-173.183
linux-image-5.15.0-173-lowlatency-64k –  5.15.0-173.183
linux-image-aws-5.15 –  5.15.0.1103.106
linux-image-aws-64k-5.15 –  5.15.0.1103.106
linux-image-aws-64k-lts-22.04 –  5.15.0.1103.106
linux-image-aws-lts-22.04 –  5.15.0.1103.106
linux-image-gcp-5.15 –  5.15.0.1103.99
linux-image-gcp-lts-22.04 –  5.15.0.1103.99
linux-image-generic –  5.15.0.173.161
linux-image-generic-5.15 –  5.15.0.173.161
linux-image-generic-64k –  5.15.0.173.161
linux-image-generic-64k-5.15 –  5.15.0.173.161
linux-image-generic-lpae –  5.15.0.173.161
linux-image-generic-lpae-5.15 –  5.15.0.173.161
linux-image-gkeop –  5.15.0.1086.85
linux-image-gkeop-5.15 –  5.15.0.1086.85
linux-image-ibm –  5.15.0.1097.93
linux-image-ibm-5.15 –  5.15.0.1097.93
linux-image-intel-iotg –  5.15.0.1098.98
linux-image-intel-iotg-5.15 –  5.15.0.1098.98
linux-image-kvm –  5.15.0.1095.91
linux-image-kvm-5.15 –  5.15.0.1095.91
linux-image-lowlatency –  5.15.0.173.146
linux-image-lowlatency-5.15 –  5.15.0.173.146
linux-image-lowlatency-64k –  5.15.0.173.146
linux-image-lowlatency-64k-5.15 –  5.15.0.173.146
linux-image-nvidia –  5.15.0.1098.98
linux-image-nvidia-5.15 –  5.15.0.1098.98
linux-image-nvidia-lowlatency –  5.15.0.1098.98
linux-image-nvidia-lowlatency-5.15 –  5.15.0.1098.98
linux-image-nvidia-tegra –  5.15.0.1055.55
linux-image-nvidia-tegra-5.15 –  5.15.0.1055.55
linux-image-nvidia-tegra-rt –  5.15.0.1055.55
linux-image-nvidia-tegra-rt-5.15 –  5.15.0.1055.55
linux-image-oracle-5.15 –  5.15.0.1100.96
linux-image-oracle-lts-22.04 –  5.15.0.1100.96
linux-image-virtual –  5.15.0.173.161
linux-image-virtual-5.15 –  5.15.0.173.161
linux-image-xilinx-zynqmp –  5.15.0.1067.70
linux-image-xilinx-zynqmp-5.15 –  5.15.0.1067.70
20.04 LTS focal linux-image-5.15.0-1055-nvidia-tegra –  5.15.0-1055.55~20.04.1  
linux-image-5.15.0-1055-nvidia-tegra-rt –  5.15.0-1055.55~20.04.1  
linux-image-5.15.0-1097-ibm –  5.15.0-1097.100~20.04.1  
linux-image-ibm –  5.15.0.1097.100~20.04.1  
linux-image-ibm-5.15 –  5.15.0.1097.100~20.04.1  
linux-image-nvidia-tegra –  5.15.0.1055.55~20.04.1  
linux-image-nvidia-tegra-5.15 –  5.15.0.1055.55~20.04.1  
linux-image-nvidia-tegra-rt –  5.15.0.1055.55~20.04.1  
linux-image-nvidia-tegra-rt-5.15 –  5.15.0.1055.55~20.04.1  

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References

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