[USN-7649-1] Linux kernel vulnerabilities

[Giampaolo Fresi Roglia]

==========================================================================
Ubuntu Security Notice USN-7649-1
July 17, 2025

linux, linux-gcp, linux-raspi, linux-realtime vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-raspi: Linux kernel for Raspberry Pi systems
- linux-realtime: Linux kernel for Real-time systems

Details:

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;
  - PA-RISC architecture;
  - PowerPC architecture;
  - S390 architecture;
  - x86 architecture;
  - Compute Acceleration Framework;
  - Ublk userspace block driver;
  - Bluetooth drivers;
  - ARM SCMI message protocol;
  - GPU drivers;
  - IOMMU subsystem;
  - IRQ chip drivers;
  - Multiple devices driver;
  - Network drivers;
  - PCI subsystem;
  - PTP clock framework;
  - SPI subsystem;
  - BTRFS file system;
  - SMB network file system;
  - eXpress Data Path;
  - Universal MIDI packet (UMP) support module;
  - Tracing infrastructure;
  - Memory management;
  - IPv4 networking;
  - IPv6 networking;
  - Network traffic control;
  - AMD SoC Alsa drivers;
  - SoC Audio generic drivers;
(CVE-2025-37898, CVE-2025-37990, CVE-2025-37974, CVE-2025-37991,
CVE-2025-37894, CVE-2025-37906, CVE-2025-37896, CVE-2025-37909,
CVE-2025-37923, CVE-2025-37899, CVE-2025-37901, CVE-2025-37914,
CVE-2025-38216, CVE-2025-37931, CVE-2025-37928, CVE-2025-37916,
CVE-2025-37908, CVE-2025-37915, CVE-2025-37917, CVE-2025-37921,
CVE-2025-37903, CVE-2025-37922, CVE-2025-37895, CVE-2025-37936,
CVE-2025-37933, CVE-2025-37891, CVE-2025-37926, CVE-2025-37912,
CVE-2025-37920, CVE-2025-37924, CVE-2025-37927, CVE-2025-37946,
CVE-2025-37907, CVE-2025-37930, CVE-2025-37911, CVE-2025-37905,
CVE-2025-37900, CVE-2025-37929, CVE-2025-37910, CVE-2025-37913,
CVE-2025-37935, CVE-2025-37919, CVE-2025-37918, CVE-2025-37897,
CVE-2025-37904, CVE-2025-37934)

Update instructions:

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

Ubuntu 25.04
  linux-image-6.14.0-1006-realtime  6.14.0-1006.6
  linux-image-6.14.0-1009-raspi   6.14.0-1009.9
  linux-image-6.14.0-1011-gcp     6.14.0-1011.11
  linux-image-6.14.0-1011-gcp-64k  6.14.0-1011.11
  linux-image-6.14.0-24-generic   6.14.0-24.24
  linux-image-6.14.0-24-generic-64k  6.14.0-24.24
  linux-image-gcp                 6.14.0-1011.11
  linux-image-gcp-6.14            6.14.0-1011.11
  linux-image-gcp-64k             6.14.0-1011.11
  linux-image-gcp-64k-6.14        6.14.0-1011.11
  linux-image-generic             6.14.0-24.24
  linux-image-generic-6.14        6.14.0-24.24
  linux-image-generic-64k         6.14.0-24.24
  linux-image-generic-64k-6.14    6.14.0-24.24
  linux-image-generic-64k-hwe-24.04  6.14.0-24.24
  linux-image-generic-hwe-24.04   6.14.0-24.24
  linux-image-oem-24.04           6.14.0-24.24
  linux-image-oem-24.04a          6.14.0-24.24
  linux-image-raspi               6.14.0-1009.9
  linux-image-raspi-6.14          6.14.0-1009.9
  linux-image-realtime            6.14.0-1006.6
  linux-image-realtime-6.14       6.14.0-1006.6
  linux-image-realtime-hwe-24.04  6.14.0-1006.6
  linux-image-virtual             6.14.0-24.24
  linux-image-virtual-6.14        6.14.0-24.24
  linux-image-virtual-hwe-24.04   6.14.0-24.24

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.

References:
  https://ubuntu.com/security/notices/USN-7649-1
  CVE-2025-37891, CVE-2025-37894, CVE-2025-37895, CVE-2025-37896,
  CVE-2025-37897, CVE-2025-37898, CVE-2025-37899, CVE-2025-37900,
  CVE-2025-37901, CVE-2025-37903, CVE-2025-37904, CVE-2025-37905,
  CVE-2025-37906, CVE-2025-37907, CVE-2025-37908, CVE-2025-37909,
  CVE-2025-37910, CVE-2025-37911, CVE-2025-37912, CVE-2025-37913,
  CVE-2025-37914, CVE-2025-37915, CVE-2025-37916, CVE-2025-37917,
  CVE-2025-37918, CVE-2025-37919, CVE-2025-37920, CVE-2025-37921,
  CVE-2025-37922, CVE-2025-37923, CVE-2025-37924, CVE-2025-37926,
  CVE-2025-37927, CVE-2025-37928, CVE-2025-37929, CVE-2025-37930,
  CVE-2025-37931, CVE-2025-37933, CVE-2025-37934, CVE-2025-37935,
  CVE-2025-37936, CVE-2025-37946, CVE-2025-37974, CVE-2025-37990,
  CVE-2025-37991, CVE-2025-38216

Package Information:
  https://launchpad.net/ubuntu/+source/linux/6.14.0-24.24
  https://launchpad.net/ubuntu/+source/linux-gcp/6.14.0-1011.11
  https://launchpad.net/ubuntu/+source/linux-raspi/6.14.0-1009.9
  https://launchpad.net/ubuntu/+source/linux-realtime/6.14.0-1006.6

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