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Alerts This Week
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Ubuntu 25.04: USN-7649-1 Linux Kernel Critical Security Issues

ubuntu
Calendar Grey July 17, 2025
Scroller Ubuntu
Urgent security patches released for Ubuntu 25.04 addressing severe Linux kernel vulnerabilities. Users should promptly update to ensure system integrity.
Several security issues were fixed in the Linux kernel.

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 ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory security issue critical Ubuntu system compromise Linux kernel

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

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7649-1

Topics%20covered

Topics Covered

security advisory security issue critical Ubuntu system compromise Linux kernel

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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