1. Ubuntu Security Notices
  2. USN-7100-1

USN-7100-1: Linux kernel vulnerabilities

Publication date

11 November 2024

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)

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:

  • ARM64 architecture;
  • MIPS architecture;
  • PowerPC architecture;
  • RISC-V architecture;
  • User-Mode Linux (UML);
  • x86 architecture;
  • Block layer subsystem;
  • Android drivers;
  • Serial ATA and Parallel ATA drivers;
  • ATM drivers;
  • Drivers core;
  • Null block device...

Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)

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:

  • ARM64 architecture;
  • MIPS architecture;
  • PowerPC architecture;
  • RISC-V architecture;
  • User-Mode Linux (UML);
  • x86 architecture;
  • Block layer subsystem;
  • Android drivers;
  • Serial ATA and Parallel ATA drivers;
  • ATM drivers;
  • Drivers core;
  • Null block device driver;
  • Character device driver;
  • ARM SCMI message protocol;
  • GPU drivers;
  • HID subsystem;
  • Hardware monitoring drivers;
  • I3C subsystem;
  • InfiniBand drivers;
  • Input Device core drivers;
  • Input Device (Miscellaneous) drivers;
  • IOMMU subsystem;
  • IRQ chip drivers;
  • ISDN/mISDN subsystem;
  • LED subsystem;
  • Multiple devices driver;
  • Media drivers;
  • VMware VMCI Driver;
  • MMC subsystem;
  • Network drivers;
  • Near Field Communication (NFC) drivers;
  • NVME drivers;
  • Device tree and open firmware driver;
  • Parport drivers;
  • PCI subsystem;
  • Pin controllers subsystem;
  • Remote Processor subsystem;
  • S/390 drivers;
  • SCSI drivers;
  • QCOM SoC drivers;
  • Direct Digital Synthesis drivers;
  • Thunderbolt and USB4 drivers;
  • TTY drivers;
  • Userspace I/O drivers;
  • DesignWare USB3 driver;
  • USB Gadget drivers;
  • USB Host Controller drivers;
  • USB Type-C Connector System Software Interface driver;
  • USB over IP driver;
  • VHOST drivers;
  • File systems infrastructure;
  • BTRFS file system;
  • Ext4 file system;
  • F2FS file system;
  • JFS file system;
  • NILFS2 file system;
  • NTFS3 file system;
  • Proc file system;
  • SMB network file system;
  • Core kernel;
  • DMA mapping infrastructure;
  • RCU subsystem;
  • Tracing infrastructure;
  • Radix Tree data structure library;
  • Kernel userspace event delivery library;
  • Objagg library;
  • Memory management;
  • Amateur Radio drivers;
  • Bluetooth subsystem;
  • Ethernet bridge;
  • CAN network layer;
  • Networking core;
  • Ethtool driver;
  • IPv4 networking;
  • IPv6 networking;
  • IUCV driver;
  • KCM (Kernel Connection Multiplexor) sockets driver;
  • MAC80211 subsystem;
  • Multipath TCP;
  • Netfilter;
  • Network traffic control;
  • SCTP protocol;
  • Sun RPC protocol;
  • TIPC protocol;
  • TLS protocol;
  • Wireless networking;
  • AppArmor security module;
  • Landlock security;
  • Simplified Mandatory Access Control Kernel framework;
  • FireWire sound drivers;
  • SoC audio core drivers;
  • USB sound devices

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-5.15.0-1038-xilinx-zynqmp –  5.15.0-1038.42
linux-image-5.15.0-1055-gkeop –  5.15.0-1055.62
linux-image-5.15.0-1065-ibm –  5.15.0-1065.68
linux-image-5.15.0-1065-raspi –  5.15.0-1065.68
linux-image-5.15.0-1067-nvidia –  5.15.0-1067.68
linux-image-5.15.0-1067-nvidia-lowlatency –  5.15.0-1067.68
linux-image-5.15.0-1069-gke –  5.15.0-1069.75
linux-image-5.15.0-1069-kvm –  5.15.0-1069.74
linux-image-5.15.0-1070-oracle –  5.15.0-1070.76
linux-image-5.15.0-1071-gcp –  5.15.0-1071.79
linux-image-5.15.0-125-generic –  5.15.0-125.135
linux-image-5.15.0-125-generic-64k –  5.15.0-125.135
linux-image-5.15.0-125-generic-lpae –  5.15.0-125.135
linux-image-5.15.0-125-lowlatency –  5.15.0-125.135
linux-image-5.15.0-125-lowlatency-64k –  5.15.0-125.135
linux-image-gcp-lts-22.04 –  5.15.0.1071.67
linux-image-generic –  5.15.0.125.124
linux-image-generic-64k –  5.15.0.125.124
linux-image-generic-lpae –  5.15.0.125.124
linux-image-gke –  5.15.0.1069.68
linux-image-gke-5.15 –  5.15.0.1069.68
linux-image-gkeop –  5.15.0.1055.54
linux-image-gkeop-5.15 –  5.15.0.1055.54
linux-image-ibm –  5.15.0.1065.61
linux-image-kvm –  5.15.0.1069.65
linux-image-lowlatency –  5.15.0.125.113
linux-image-lowlatency-64k –  5.15.0.125.113
linux-image-nvidia –  5.15.0.1067.67
linux-image-nvidia-lowlatency –  5.15.0.1067.67
linux-image-oracle-lts-22.04 –  5.15.0.1070.66
linux-image-raspi –  5.15.0.1065.63
linux-image-raspi-nolpae –  5.15.0.1065.63
linux-image-virtual –  5.15.0.125.124
linux-image-xilinx-zynqmp –  5.15.0.1038.42
20.04 focal linux-image-5.15.0-1055-gkeop –  5.15.0-1055.62~20.04.1
linux-image-5.15.0-1065-ibm –  5.15.0-1065.68~20.04.1
linux-image-5.15.0-1070-oracle –  5.15.0-1070.76~20.04.1
linux-image-5.15.0-1071-gcp –  5.15.0-1071.79~20.04.1
linux-image-5.15.0-1072-aws –  5.15.0-1072.78~20.04.1
linux-image-5.15.0-125-generic –  5.15.0-125.135~20.04.1
linux-image-5.15.0-125-generic-64k –  5.15.0-125.135~20.04.1
linux-image-5.15.0-125-generic-lpae –  5.15.0-125.135~20.04.1
linux-image-5.15.0-125-lowlatency –  5.15.0-125.135~20.04.1
linux-image-5.15.0-125-lowlatency-64k –  5.15.0-125.135~20.04.1
linux-image-aws –  5.15.0.1072.78~20.04.1
linux-image-gcp –  5.15.0.1071.79~20.04.1
linux-image-generic-64k-hwe-20.04 –  5.15.0.125.135~20.04.1
linux-image-generic-hwe-20.04 –  5.15.0.125.135~20.04.1
linux-image-generic-lpae-hwe-20.04 –  5.15.0.125.135~20.04.1
linux-image-gkeop-5.15 –  5.15.0.1055.62~20.04.1
linux-image-ibm –  5.15.0.1065.68~20.04.1
linux-image-lowlatency-64k-hwe-20.04 –  5.15.0.125.135~20.04.1
linux-image-lowlatency-hwe-20.04 –  5.15.0.125.135~20.04.1
linux-image-oem-20.04 –  5.15.0.125.135~20.04.1
linux-image-oem-20.04b –  5.15.0.125.135~20.04.1
linux-image-oem-20.04c –  5.15.0.125.135~20.04.1
linux-image-oem-20.04d –  5.15.0.125.135~20.04.1
linux-image-oracle –  5.15.0.1070.76~20.04.1
linux-image-virtual-hwe-20.04 –  5.15.0.125.135~20.04.1

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References

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