1. Ubuntu Security Notices
  2. USN-7195-2

USN-7195-2: Linux kernel (Azure) vulnerabilities

Publication date

14 January 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)

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:

  • ARM32 architecture;
  • ARM64 architecture;
  • S390 architecture;
  • x86 architecture;
  • Power management core;
  • GPU drivers;
  • InfiniBand drivers;
  • Network drivers;
  • S/390 drivers;
  • SCSI subsystem;
  • TTY drivers;
  • BTRFS file system;
  • Ext4 file system;
  • EROFS file system;
  • F2FS file system;
  • File systems infrastructure;
  • BPF subsystem;
  • Socket...

Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)

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:

  • ARM32 architecture;
  • ARM64 architecture;
  • S390 architecture;
  • x86 architecture;
  • Power management core;
  • GPU drivers;
  • InfiniBand drivers;
  • Network drivers;
  • S/390 drivers;
  • SCSI subsystem;
  • TTY drivers;
  • BTRFS file system;
  • Ext4 file system;
  • EROFS file system;
  • F2FS file system;
  • File systems infrastructure;
  • BPF subsystem;
  • Socket messages infrastructure;
  • Bluetooth subsystem;
  • Memory management;
  • Amateur Radio drivers;
  • Ethernet bridge;
  • Networking core;
  • IPv4 networking;
  • Network traffic control;
  • Sun RPC protocol;
  • VMware vSockets driver;
  • SELinux security module

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
18.04 bionic linux-image-5.4.0-1142-azure –  5.4.0-1142.149~18.04.1  
linux-image-azure –  5.4.0.1142.149~18.04.1  

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References

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