1. Ubuntu Security Notices
  2. USN-7173-2

USN-7173-2: Linux kernel vulnerabilities

Publication date

20 December 2024

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:

  • GPU drivers;
  • Network drivers;
  • SCSI subsystem;
  • Ext4 file system;
  • Bluetooth subsystem;
  • Memory management;
  • Amateur Radio drivers;
  • Network traffic control;
  • Sun RPC protocol;
  • VMware vSockets driver

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:

  • GPU drivers;
  • Network drivers;
  • SCSI subsystem;
  • Ext4 file system;
  • Bluetooth subsystem;
  • Memory management;
  • Amateur Radio drivers;
  • Network traffic control;
  • Sun RPC protocol;
  • VMware vSockets driver

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-5.4.0-1056-xilinx-zynqmp –  5.4.0-1056.60
linux-image-5.4.0-1084-ibm –  5.4.0-1084.89
linux-image-5.4.0-1097-bluefield –  5.4.0-1097.104
linux-image-5.4.0-1136-oracle –  5.4.0-1136.145
linux-image-5.4.0-1137-aws –  5.4.0-1137.147
linux-image-aws-lts-20.04 –  5.4.0.1137.134
linux-image-bluefield –  5.4.0.1097.93
linux-image-ibm-lts-20.04 –  5.4.0.1084.113
linux-image-oracle-lts-20.04 –  5.4.0.1136.129
linux-image-xilinx-zynqmp –  5.4.0.1056.56
18.04 bionic linux-image-5.4.0-1084-ibm –  5.4.0-1084.89~18.04.1  
linux-image-5.4.0-1136-oracle –  5.4.0-1136.145~18.04.1  
linux-image-5.4.0-1137-aws –  5.4.0-1137.147~18.04.1  
linux-image-aws –  5.4.0.1137.147~18.04.1  
linux-image-ibm –  5.4.0.1084.89~18.04.1  
linux-image-oracle –  5.4.0.1136.145~18.04.1  

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References

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