1. Ubuntu Security Notices
  2. USN-8962-1

USN-8962-1: Linux kernel (Azure CVM) vulnerabilities

Publication date

3 November 2026

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol
implementation in the Linux kernel, leading to use-after-free
vulnerabilities. A local attacker could possibly use this to cause a denial
of service (system crash). (CVE-2022-1205)

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:

  • USB Gadget drivers;
  • ARM32 architecture;
  • ARM64 architecture;
  • OpenRISC architecture;
  • PowerPC architecture;
  • RISC-V architecture;
  • S390 architecture;
  • x86 architecture;
  • Block layer subsystem;
  • Speakup Console Speech Driver;
  • ACPI drivers;
  • Serial ATA and Parallel ATA drivers;
  • Auxiliary display drivers;
  • Drivers core;
  • Bluetooth drivers;
  • Character...

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol
implementation in the Linux kernel, leading to use-after-free
vulnerabilities. A local attacker could possibly use this to cause a denial
of service (system crash). (CVE-2022-1205)

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:

  • USB Gadget drivers;
  • ARM32 architecture;
  • ARM64 architecture;
  • OpenRISC architecture;
  • PowerPC architecture;
  • RISC-V architecture;
  • S390 architecture;
  • x86 architecture;
  • Block layer subsystem;
  • Speakup Console Speech Driver;
  • ACPI drivers;
  • Serial ATA and Parallel ATA drivers;
  • Auxiliary display drivers;
  • Drivers core;
  • Bluetooth drivers;
  • Character device driver;
  • TPM device driver;
  • Clock framework and drivers;
  • Clocksource drivers;
  • CPU frequency scaling framework;
  • Hardware crypto device drivers;
  • DMA engine subsystem;
  • EDAC drivers;
  • Google firmware drivers;
  • FPGA Framework;
  • GPIO subsystem;
  • GPU drivers;
  • HID subsystem;
  • HSI subsystem;
  • Hardware monitoring drivers;
  • CoreSight HW tracing drivers;
  • I2C subsystem;
  • I3C subsystem;
  • IIO subsystem;
  • InfiniBand drivers;
  • On-Chip Interconnect management framework;
  • IOMMU subsystem;
  • IRQ chip drivers;
  • Multiple devices driver;
  • Media drivers;
  • Analog Devices digital potentiometer driver;
  • Broadcom VK accelerator driver;
  • Fastrpc Driver;
  • MMC subsystem;
  • MTD block device drivers;
  • Ethernet bonding driver;
  • Network drivers;
  • Mellanox network drivers;
  • STMicroelectronics network drivers;
  • MediaTek network drivers;
  • Near Field Communication (NFC) drivers;
  • NTB driver;
  • NVDIMM (Non-Volatile Memory Device) drivers;
  • NVME drivers;
  • Device tree and open firmware driver;
  • PA-RISC drivers;
  • PCI subsystem;
  • PHY drivers;
  • Pin controllers subsystem;
  • Chrome hardware platform drivers;
  • Mellanox platform drivers;
  • Microsoft Surface platform drivers;
  • x86 platform drivers;
  • Power supply drivers;
  • RapidIO drivers;
  • Voltage and Current Regulator drivers;
  • Remote Processor subsystem;
  • RPMSG subsystem;
  • Real Time Clock drivers;
  • S/390 drivers;
  • SCSI subsystem;
  • SPI subsystem;
  • small TFT LCD display modules;
  • Greybus lights staging drivers;
  • Media staging drivers;
  • Realtek RTL8723BS SDIO drivers;
  • TCM subsystem;
  • Thermal drivers;
  • Thunderbolt and USB4 drivers;
  • TTY drivers;
  • Userspace I/O drivers;
  • USB DSL drivers;
  • Cypress C67X00 USB driver;
  • USB core drivers;
  • USB Host Controller drivers;
  • Mustek MDC800 USB digital camera driver;
  • USB Serial drivers;
  • USB Mass Storage drivers;
  • USB Type-C Connector System Software Interface driver;
  • USB over IP driver;
  • vDPA drivers;
  • VFIO drivers;
  • Virtio Host (VHOST) subsystem;
  • Framebuffer layer;
  • W1 Dallas's 1-wire bus driver;
  • Watchdog drivers;
  • File systems infrastructure;
  • BFS file system;
  • BTRFS file system;
  • Ceph distributed file system;
  • eCrypt file system;
  • EROFS file system;
  • Ext4 file system;
  • F2FS file system;
  • FAT file system;
  • FUSE (File system in Userspace);
  • HFS+ file system;
  • HugeTLB file system;
  • JFS file system;
  • Network file system (NFS) client;
  • Network file system (NFS) server daemon;
  • NILFS2 file system;
  • File system notification infrastructure;
  • NTFS3 file system;
  • OCFS2 file system;
  • OrangeFS file system;
  • SMB network file system;
  • SquashFS file system;
  • UBI file system;
  • UDF file system;
  • XFS file system;
  • BPF subsystem;
  • IPv4 networking;
  • Internal shared memory driver;
  • Networking core;
  • Scheduler infrastructure;
  • Sun RPC protocol;
  • Virtio network driver;
  • Amateur Radio drivers;
  • IP tunnels definitions;
  • Network traffic control;
  • SCTP protocol;
  • TCP network protocol;
  • eXpress Data Path;
  • XFRM subsystem;
  • User-space API (UAPI);
  • io_uring subsystem;
  • Audit subsystem;
  • Perf events;
  • KCOV code coverage framework;
  • Locking primitives;
  • RCU subsystem;
  • Signal handling mechanism;
  • Timer subsystem;
  • Tracing infrastructure;
  • Kernel build system;
  • Heterogeneous memory management;
  • UCS-2 string library;
  • Memory management;
  • Appletalk network protocol;
  • B.A.T.M.A.N. meshing protocol;
  • Bluetooth subsystem;
  • Ethernet bridge;
  • CAN network layer;
  • Ceph Core library;
  • Distributed Switch Architecture;
  • HSR network protocol;
  • IEEE802154.4 network protocol;
  • IPv6 networking;
  • IUCV driver;
  • KCM (Kernel Connection Multiplexor) sockets driver;
  • MAC80211 subsystem;
  • MultiProtocol Label Switching driver;
  • Multipath TCP;
  • Netfilter;
  • NFC subsystem;
  • Open vSwitch;
  • Packet sockets;
  • Phonet protocol;
  • Qualcomm IPC Router (QRTR);
  • RDS protocol;
  • SMC sockets;
  • TIPC protocol;
  • VMware vSockets driver;
  • Wireless networking;
  • AppArmor security module;
  • Integrity Measurement Architecture(IMA) framework;
  • Landlock security;
  • SELinux security module;
  • Simplified Mandatory Access Control Kernel framework;
  • ALSA framework;
  • Generic PCM loopback sound driver;
  • Generic sound devices;
  • ESS ES18xx ALSA driver;
  • Digigram PCXHR ALSA driver;
  • Cirrus Logic audio codecs;
  • QCOM ASoC drivers;
  • Realtek audio codecs;
  • WCD audio codecs;
  • Amlogic Meson SoC drivers;
  • Rockchip ASoC drivers;
  • SoC audio core drivers;
  • Spreadtrum ASoC drivers;
  • STI ASoC drivers;
  • Xilinx ASoC drivers;
  • USB sound devices;
  • Perf tools

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-5.15.0-1124-azure-fde –  5.15.0-1124.133
linux-image-azure-fde-5.15 –  5.15.0.1124.133
linux-image-azure-fde-lts-22.04 –  5.15.0.1124.133

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References

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