1. Ubuntu Security Notices
  2. USN-6831-1

USN-6831-1: Linux kernel vulnerabilities

Publication date

12 June 2024

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

It was discovered that the HugeTLB file system component of the Linux
Kernel contained a NULL pointer dereference vulnerability. A privileged
attacker could possibly use this to to cause a denial of service.
(CVE-2024-0841)

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;
  • PowerPC architecture;
  • x86 architecture;
  • DMA engine subsystem;
  • EFI core;
  • GPU drivers;
  • InfiniBand drivers;
  • Multiple devices driver;
  • Network drivers;
  • Power supply drivers;
  • TCM subsystem;
  • Userspace I/O drivers;
  • USB subsystem;
  • Framebuffer layer;
  • AFS file system;
  • File systems infrastructure;
  • BTRFS file system;
  • Ext4 file...

It was discovered that the HugeTLB file system component of the Linux
Kernel contained a NULL pointer dereference vulnerability. A privileged
attacker could possibly use this to to cause a denial of service.
(CVE-2024-0841)

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;
  • PowerPC architecture;
  • x86 architecture;
  • DMA engine subsystem;
  • EFI core;
  • GPU drivers;
  • InfiniBand drivers;
  • Multiple devices driver;
  • Network drivers;
  • Power supply drivers;
  • TCM subsystem;
  • Userspace I/O drivers;
  • USB subsystem;
  • Framebuffer layer;
  • AFS file system;
  • File systems infrastructure;
  • BTRFS file system;
  • Ext4 file system;
  • Bluetooth subsystem;
  • Networking core;
  • IPv4 networking;
  • IPv6 networking;
  • L2TP protocol;
  • MAC80211 subsystem;
  • Netfilter;
  • Netlink;
  • Wireless networking

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-5.4.0-1045-xilinx-zynqmp –  5.4.0-1045.49
linux-image-5.4.0-1073-ibm –  5.4.0-1073.78
linux-image-5.4.0-1093-gkeop –  5.4.0-1093.97
linux-image-5.4.0-1110-raspi –  5.4.0-1110.122
linux-image-5.4.0-1114-kvm –  5.4.0-1114.121
linux-image-5.4.0-1125-oracle –  5.4.0-1125.134
linux-image-5.4.0-1126-aws –  5.4.0-1126.136
linux-image-5.4.0-1130-gcp –  5.4.0-1130.139
linux-image-5.4.0-1131-azure –  5.4.0-1131.138
linux-image-5.4.0-186-generic –  5.4.0-186.206
linux-image-5.4.0-186-generic-lpae –  5.4.0-186.206
linux-image-5.4.0-186-lowlatency –  5.4.0-186.206
linux-image-aws-lts-20.04 –  5.4.0.1126.123
linux-image-azure-lts-20.04 –  5.4.0.1131.125
linux-image-gcp-lts-20.04 –  5.4.0.1130.132
linux-image-generic –  5.4.0.186.184
linux-image-generic-lpae –  5.4.0.186.184
linux-image-gkeop –  5.4.0.1093.91
linux-image-gkeop-5.4 –  5.4.0.1093.91
linux-image-ibm-lts-20.04 –  5.4.0.1073.102
linux-image-kvm –  5.4.0.1114.110
linux-image-lowlatency –  5.4.0.186.184
linux-image-oem –  5.4.0.186.184
linux-image-oem-osp1 –  5.4.0.186.184
linux-image-oracle-lts-20.04 –  5.4.0.1125.118
linux-image-raspi –  5.4.0.1110.140
linux-image-raspi2 –  5.4.0.1110.140
linux-image-virtual –  5.4.0.186.184
linux-image-xilinx-zynqmp –  5.4.0.1045.45
18.04 bionic linux-image-5.4.0-1073-ibm –  5.4.0-1073.78~18.04.1  
linux-image-5.4.0-1110-raspi –  5.4.0-1110.122~18.04.1  
linux-image-5.4.0-1125-oracle –  5.4.0-1125.134~18.04.1  
linux-image-5.4.0-1126-aws –  5.4.0-1126.136~18.04.1  
linux-image-5.4.0-1130-gcp –  5.4.0-1130.139~18.04.1  
linux-image-5.4.0-1131-azure –  5.4.0-1131.138~18.04.1  
linux-image-5.4.0-186-generic –  5.4.0-186.206~18.04.1  
linux-image-5.4.0-186-lowlatency –  5.4.0-186.206~18.04.1  
linux-image-aws –  5.4.0.1126.136~18.04.1  
linux-image-azure –  5.4.0.1131.138~18.04.1  
linux-image-gcp –  5.4.0.1130.139~18.04.1  
linux-image-generic-hwe-18.04 –  5.4.0.186.206~18.04.1  
linux-image-ibm –  5.4.0.1073.78~18.04.1  
linux-image-lowlatency-hwe-18.04 –  5.4.0.186.206~18.04.1  
linux-image-oem –  5.4.0.186.206~18.04.1  
linux-image-oem-osp1 –  5.4.0.186.206~18.04.1  
linux-image-oracle –  5.4.0.1125.134~18.04.1  
linux-image-raspi-hwe-18.04 –  5.4.0.1110.122~18.04.1  
linux-image-snapdragon-hwe-18.04 –  5.4.0.186.206~18.04.1  
linux-image-virtual-hwe-18.04 –  5.4.0.186.206~18.04.1  

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References

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