1. Ubuntu Security Notices
  2. USN-7598-1

USN-7598-1: Linux kernel (Azure) vulnerabilities

Publication date

24 June 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

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;
  • Sun RPC protocol;
  • 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
20.04 focal linux-image-5.15.0-1091-azure –  5.15.0-1091.100~20.04.1  
linux-image-azure –  5.15.0.1091.100~20.04.1  
linux-image-azure-cvm –  5.15.0.1091.100~20.04.1  

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 ›