==========================================================================
Ubuntu Security Notice USN-7701-1
August 19, 2025

linux, linux-aws, linux-aws-5.4, linux-bluefield, linux-gcp,
linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm,
linux-oracle, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp
vulnerabilities
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-bluefield: Linux kernel for NVIDIA BlueField platforms
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-ibm: Linux kernel for IBM cloud systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi: Linux kernel for Raspberry Pi systems
- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors
- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe-5.4: Linux hardware enablement (HWE) kernel
- linux-ibm-5.4: Linux kernel for IBM cloud systems
- linux-raspi-5.4: Linux kernel for Raspberry Pi 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:
  - Device tree and open firmware driver;
  - SCSI subsystem;
  - TTY drivers;
  - SMB network file system;
  - Bluetooth subsystem;
  - Network traffic control;
(CVE-2025-37797, CVE-2023-52757, CVE-2025-38083, CVE-2024-38541,
CVE-2024-49950, CVE-2024-50073, CVE-2023-52975)

Update instructions:

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

Ubuntu 20.04 LTS
  linux-image-5.4.0-1067-xilinx-zynqmp  5.4.0-1067.71
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1095-ibm      5.4.0-1095.100
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1108-bluefield  5.4.0-1108.115
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1132-raspi    5.4.0-1132.145
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1136-kvm      5.4.0-1136.145
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1147-oracle   5.4.0-1147.157
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1149-aws      5.4.0-1149.159
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1152-gcp      5.4.0-1152.161
                                  Available with Ubuntu Pro
  linux-image-5.4.0-220-generic   5.4.0-220.240
                                  Available with Ubuntu Pro
  linux-image-5.4.0-220-generic-lpae  5.4.0-220.240
                                  Available with Ubuntu Pro
  linux-image-5.4.0-220-lowlatency  5.4.0-220.240
                                  Available with Ubuntu Pro
  linux-image-aws-5.4             5.4.0.1149.146
                                  Available with Ubuntu Pro
  linux-image-aws-lts-20.04       5.4.0.1149.146
                                  Available with Ubuntu Pro
  linux-image-bluefield           5.4.0.1108.104
                                  Available with Ubuntu Pro
  linux-image-bluefield-5.4       5.4.0.1108.104
                                  Available with Ubuntu Pro
  linux-image-gcp-5.4             5.4.0.1152.154
                                  Available with Ubuntu Pro
  linux-image-gcp-lts-20.04       5.4.0.1152.154
                                  Available with Ubuntu Pro
  linux-image-generic             5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-generic-5.4         5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-generic-lpae        5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-generic-lpae-5.4    5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-ibm-5.4             5.4.0.1095.124
                                  Available with Ubuntu Pro
  linux-image-ibm-lts-20.04       5.4.0.1095.124
                                  Available with Ubuntu Pro
  linux-image-kvm                 5.4.0.1136.132
                                  Available with Ubuntu Pro
  linux-image-kvm-5.4             5.4.0.1136.132
                                  Available with Ubuntu Pro
  linux-image-lowlatency          5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-lowlatency-5.4      5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-oem                 5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-oem-osp1            5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-oracle-5.4          5.4.0.1147.141
                                  Available with Ubuntu Pro
  linux-image-oracle-lts-20.04    5.4.0.1147.141
                                  Available with Ubuntu Pro
  linux-image-raspi               5.4.0.1132.163
                                  Available with Ubuntu Pro
  linux-image-raspi-5.4           5.4.0.1132.163
                                  Available with Ubuntu Pro
  linux-image-raspi2              5.4.0.1132.163
                                  Available with Ubuntu Pro
  linux-image-virtual             5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-virtual-5.4         5.4.0.220.212
                                  Available with Ubuntu Pro
  linux-image-xilinx-zynqmp       5.4.0.1067.67
                                  Available with Ubuntu Pro
  linux-image-xilinx-zynqmp-5.4   5.4.0.1067.67
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  linux-image-5.4.0-1095-ibm      5.4.0-1095.100~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1132-raspi    5.4.0-1132.145~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1149-aws      5.4.0-1149.159~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1152-gcp      5.4.0-1152.161~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-220-generic   5.4.0-220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-220-lowlatency  5.4.0-220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-aws                 5.4.0.1149.159~18.04.1
                                  Available with Ubuntu Pro
  linux-image-aws-5.4             5.4.0.1149.159~18.04.1
                                  Available with Ubuntu Pro
  linux-image-gcp                 5.4.0.1152.161~18.04.1
                                  Available with Ubuntu Pro
  linux-image-gcp-5.4             5.4.0.1152.161~18.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-5.4         5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-hwe-18.04   5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-ibm                 5.4.0.1095.100~18.04.1
                                  Available with Ubuntu Pro
  linux-image-ibm-5.4             5.4.0.1095.100~18.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-5.4      5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-hwe-18.04  5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-oem                 5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-oem-osp1            5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-raspi-5.4           5.4.0.1132.145~18.04.1
                                  Available with Ubuntu Pro
  linux-image-raspi-hwe-18.04     5.4.0.1132.145~18.04.1
                                  Available with Ubuntu Pro
  linux-image-snapdragon-5.4      5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-snapdragon-hwe-18.04  5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-virtual-5.4         5.4.0.220.240~18.04.1
                                  Available with Ubuntu Pro
  linux-image-virtual-hwe-18.04   5.4.0.220.240~18.04.1
                                  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-7701-1
  CVE-2023-52757, CVE-2023-52975, CVE-2024-38541, CVE-2024-49950,
  CVE-2024-50073, CVE-2025-37797, CVE-2025-38083