1. Ubuntu Security Notices
  2. USN-7597-1

USN-7597-1: Linux kernel (Azure) vulnerabilities

Publication date

24 June 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

  • linux-azure - Linux kernel for Microsoft Azure Cloud systems

Details

Michael Randrianantenaina discovered that the Bluetooth driver in the Linux
Kernel contained an improper access control vulnerability. A nearby
attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)

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;
  • ACPI drivers;
  • Clock framework and drivers;
  • GPU drivers;
  • HID subsystem;
  • InfiniBand drivers;
  • Media drivers;
  • MemoryStick subsystem;
  • Network drivers;
  • Mellanox network drivers;
  • NTB driver;
  • PCI subsystem;
  • Voltage and Current Regulator drivers;
  • Remote Processor subsystem;
  • SCSI subsystem;
  • QCOM SoC...

Michael Randrianantenaina discovered that the Bluetooth driver in the Linux
Kernel contained an improper access control vulnerability. A nearby
attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)

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;
  • ACPI drivers;
  • Clock framework and drivers;
  • GPU drivers;
  • HID subsystem;
  • InfiniBand drivers;
  • Media drivers;
  • MemoryStick subsystem;
  • Network drivers;
  • Mellanox network drivers;
  • NTB driver;
  • PCI subsystem;
  • Voltage and Current Regulator drivers;
  • Remote Processor subsystem;
  • SCSI subsystem;
  • QCOM SoC drivers;
  • Thermal drivers;
  • BTRFS file system;
  • Ext4 file system;
  • JFS file system;
  • Network file system (NFS) server daemon;
  • NTFS3 file system;
  • File systems infrastructure;
  • Proc file system;
  • SMB network file system;
  • IPv6 networking;
  • RDMA verbs API;
  • SoC audio core drivers;
  • Tracing infrastructure;
  • Watch queue notification mechanism;
  • 802.1Q VLAN protocol;
  • Asynchronous Transfer Mode (ATM) subsystem;
  • Bluetooth subsystem;
  • Networking core;
  • IPv4 networking;
  • Netfilter;
  • Network traffic control;
  • SMC sockets;
  • SoC Audio for Freescale CPUs drivers

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 jammy linux-image-5.15.0-1091-azure –  5.15.0-1091.100
linux-image-azure-lts-22.04 –  5.15.0.1091.89

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

id="usn"

Have additional questions?

Talk to a member of the team ›