1. Ubuntu Security Notices
  2. USN-7385-1

USN-7385-1: Linux kernel (IBM) vulnerabilities

Publication date

27 March 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

  • linux-ibm - Linux kernel for IBM cloud systems

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)

Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)

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;
  • x86 architecture;
  • Block layer...

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)

Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)

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;
  • x86 architecture;
  • Block layer subsystem;
  • Cryptographic API;
  • ACPI drivers;
  • Drivers core;
  • ATA over ethernet (AOE) driver;
  • Network block device driver;
  • Ublk userspace block driver;
  • Compressed RAM block device driver;
  • TPM device driver;
  • CPU frequency scaling framework;
  • Hardware crypto device drivers;
  • DAX dirext access to differentiated memory framework;
  • ARM SCMI message protocol;
  • EFI core;
  • GPU drivers;
  • HID subsystem;
  • I2C subsystem;
  • I3C subsystem;
  • IIO subsystem;
  • InfiniBand drivers;
  • Input Device core drivers;
  • IOMMU subsystem;
  • IRQ chip drivers;
  • Mailbox framework;
  • Media drivers;
  • Ethernet bonding driver;
  • Network drivers;
  • Mellanox network drivers;
  • STMicroelectronics network drivers;
  • NTB driver;
  • Virtio pmem driver;
  • Parport drivers;
  • PCI subsystem;
  • Alibaba DDR Sub-System Driveway PMU driver;
  • Pin controllers subsystem;
  • x86 platform drivers;
  • Powercap sysfs driver;
  • Remote Processor subsystem;
  • SCSI subsystem;
  • SuperH / SH-Mobile drivers;
  • Direct Digital Synthesis drivers;
  • Thermal drivers;
  • TTY drivers;
  • UFS subsystem;
  • USB Device Class drivers;
  • USB Gadget drivers;
  • USB Host Controller drivers;
  • TI TPS6598x USB Power Delivery controller driver;
  • vDPA drivers;
  • Virtio Host (VHOST) subsystem;
  • Framebuffer layer;
  • AFS file system;
  • BTRFS file system;
  • File systems infrastructure;
  • Ceph distributed file system;
  • Ext4 file system;
  • F2FS file system;
  • JFS file system;
  • Network file systems library;
  • Network file system (NFS) client;
  • Network file system (NFS) server daemon;
  • NILFS2 file system;
  • NTFS3 file system;
  • SMB network file system;
  • BPF subsystem;
  • Network file system (NFS) superblock;
  • Virtio network driver;
  • Network traffic control;
  • Network sockets;
  • TCP network protocol;
  • User-space API (UAPI);
  • io_uring subsystem;
  • Perf events;
  • Kernel thread helper (kthread);
  • Padata parallel execution mechanism;
  • RCU subsystem;
  • Arbitrary resource management;
  • Static call mechanism;
  • Timer subsystem;
  • Tracing infrastructure;
  • Maple Tree data structure library;
  • Memory management;
  • Bluetooth subsystem;
  • Ethernet bridge;
  • CAN network layer;
  • Networking core;
  • Distributed Switch Architecture;
  • IPv4 networking;
  • IPv6 networking;
  • MAC80211 subsystem;
  • IEEE 802.15.4 subsystem;
  • Multipath TCP;
  • NCSI (Network Controller Sideband Interface) driver;
  • Netfilter;
  • Netlink;
  • RxRPC session sockets;
  • SCTP protocol;
  • TIPC protocol;
  • Unix domain sockets;
  • Wireless networking;
  • eXpress Data Path;
  • AudioScience HPI driver;
  • KVM core

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
24.04 noble linux-image-6.8.0-1022-ibm –  6.8.0-1022.22
linux-image-ibm –  6.8.0-1022.22
linux-image-ibm-classic –  6.8.0-1022.22
linux-image-ibm-lts-24.04 –  6.8.0-1022.22

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References

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