USN-7089-4: Linux kernel vulnerabilities

USN-7089-4: Linux kernel vulnerabilities
13 November 2024

Several security issues were fixed in the Linux kernel.

Releases
Ubuntu 24.04 LTS

Packages
linux-oem-6.8 - Linux kernel for OEM systems

Details
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)

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;
• MIPS architecture;
• PA-RISC architecture;
• PowerPC architecture;
• RISC-V architecture;
• S390 architecture;
• x86 architecture;
• Cryptographic API;
• Serial ATA and Parallel ATA drivers;
• Null block device driver;
• Bluetooth drivers;
• Cdrom driver;
• Clock framework and drivers;
• Hardware crypto device drivers;
• CXL (Compute Express Link) drivers;
• Cirrus firmware drivers;
• GPIO subsystem;
• GPU drivers;
• I2C subsystem;
• IIO subsystem;
• InfiniBand drivers;
• ISDN/mISDN subsystem;
• LED subsystem;
• Multiple devices driver;
• Media drivers;
• Fastrpc Driver;
• Network drivers;
• Microsoft Azure Network Adapter (MANA) driver;
• Near Field Communication (NFC) drivers;
• NVME drivers;
• NVMEM (Non Volatile Memory) drivers;
• PCI subsystem;
• Pin controllers subsystem;
• x86 platform drivers;
• S/390 drivers;
• SCSI drivers;
• Thermal drivers;
• TTY drivers;
• UFS subsystem;
• USB DSL drivers;
• USB core drivers;
• DesignWare USB3 driver;
• USB Gadget drivers;
• USB Serial drivers;
• VFIO drivers;
• VHOST drivers;
• File systems infrastructure;
• BTRFS file system;
• GFS2 file system;
• JFFS2 file system;
• JFS file system;
• Network file systems library;
• Network file system client;
• NILFS2 file system;
• NTFS3 file system;
• SMB network file system;
• Memory management;
• Netfilter;
• Tracing infrastructure;
• io_uring subsystem;
• BPF subsystem;
• Core kernel;
• Bluetooth subsystem;
• CAN network layer;
• Ceph Core library;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• IUCV driver;
• MAC80211 subsystem;
• Network traffic control;
• Sun RPC protocol;
• Wireless networking;
• AMD SoC Alsa drivers;
• SoC Audio for Freescale CPUs drivers;
• MediaTek ASoC drivers;
• SoC audio core drivers;
• SOF drivers;
• Sound sequencer drivers;

Update instructions
The problem can be corrected by updating your system to the following package versions:

Ubuntu 24.04

• linux-image-6.8.0-1016-oem - 6.8.0-1016.16
• linux-image-oem-24.04 - 6.8.0-1016.16
• linux-image-oem-24.04a - 6.8.0-1016.16

After a standard system update you need to reboot your computer to make
all the necessary changes.

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.