[USN-7608-4] Linux kernel vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-7608-4
July 03, 2025

linux-aws-5.15, linux-intel-iot-realtime vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-intel-iot-realtime: Linux kernel for Intel IoT Real-time platforms
- linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) 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:
- GPU drivers;
- SMB network file system;
- Memory management;
- Netfilter;
- Network traffic control;
(CVE-2025-37890, CVE-2024-46787, CVE-2025-37798, CVE-2025-38000,
CVE-2025-37932, CVE-2025-38001, CVE-2025-37997, CVE-2024-50047,
CVE-2024-53051)

Update instructions:

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

Ubuntu 22.04 LTS
linux-image-5.15.0-1080-intel-iot-realtime 5.15.0-1080.82
Available with Ubuntu Pro
linux-image-intel-iot-realtime 5.15.0.1080.84
Available with Ubuntu Pro
linux-image-intel-iot-realtime-5.15 5.15.0.1080.84
Available with Ubuntu Pro

Ubuntu 20.04 LTS
linux-image-5.15.0-1087-aws 5.15.0-1087.94~20.04.1
Available with Ubuntu Pro
linux-image-aws 5.15.0.1087.94~20.04.1
Available with Ubuntu Pro
linux-image-aws-5.15 5.15.0.1087.94~20.04.1
Available with Ubuntu Pro

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-7608-4
https://ubuntu.com/security/notices/USN-7608-3
https://ubuntu.com/security/notices/USN-7608-2
https://ubuntu.com/security/notices/USN-7608-1
CVE-2024-46787, CVE-2024-50047, CVE-2024-53051, CVE-2025-37798,
CVE-2025-37890, CVE-2025-37932, CVE-2025-37997, CVE-2025-38000,
CVE-2025-38001

Package Information:
https://launchpad.net/ubuntu/+source/linux-intel-iot-realtime/5.15.0-1080.82