==========================================================================
Ubuntu Security Notice USN-7726-1
August 28, 2025

linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gkeop,
linux-hwe-5.15, linux-ibm, linux-intel-iotg, linux-intel-iotg-5.15,
linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia,
linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx,
linux-oracle, linux-raspi, linux-xilinx-zynqmp 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: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gkeop: Linux kernel for Google Container Engine (GKE) systems
- linux-ibm: Linux kernel for IBM cloud systems
- linux-intel-iotg: Linux kernel for Intel IoT platforms
- linux-lowlatency: Linux low latency kernel
- linux-nvidia: Linux kernel for NVIDIA systems
- linux-nvidia-tegra: Linux kernel for NVIDIA Tegra systems
- linux-nvidia-tegra-igx: Linux kernel for NVIDIA Tegra IGX systems
- 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-5.15: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe-5.15: Linux hardware enablement (HWE) kernel
- linux-intel-iotg-5.15: Linux kernel for Intel IoT platforms
- linux-lowlatency-hwe-5.15: Linux low latency kernel
- linux-nvidia-tegra-5.15: Linux kernel for NVIDIA Tegra 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:
   - NTFS3 file system;
   - Network traffic control;
(CVE-2024-27407, CVE-2024-57996, CVE-2025-37752, CVE-2025-38350)

Update instructions:

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

Ubuntu 22.04 LTS
   linux-image-5.15.0-1033-nvidia-tegra-igx  5.15.0-1033.33
   linux-image-5.15.0-1033-nvidia-tegra-igx-rt  5.15.0-1033.33
   linux-image-5.15.0-1044-nvidia-tegra  5.15.0-1044.44
   linux-image-5.15.0-1044-nvidia-tegra-rt  5.15.0-1044.44
   linux-image-5.15.0-1055-xilinx-zynqmp  5.15.0-1055.59
   linux-image-5.15.0-1074-gkeop   5.15.0-1074.82
   linux-image-5.15.0-1085-ibm     5.15.0-1085.88
   linux-image-5.15.0-1085-raspi   5.15.0-1085.88
   linux-image-5.15.0-1086-intel-iotg  5.15.0-1086.92
   linux-image-5.15.0-1086-nvidia  5.15.0-1086.87
   linux-image-5.15.0-1086-nvidia-lowlatency  5.15.0-1086.87
   linux-image-5.15.0-1089-oracle  5.15.0-1089.95
   linux-image-5.15.0-1091-aws     5.15.0-1091.98
   linux-image-5.15.0-1091-aws-64k  5.15.0-1091.98
   linux-image-5.15.0-1091-gcp     5.15.0-1091.100
   linux-image-5.15.0-153-generic  5.15.0-153.163
   linux-image-5.15.0-153-generic-64k  5.15.0-153.163
   linux-image-5.15.0-153-generic-lpae  5.15.0-153.163
   linux-image-5.15.0-153-lowlatency  5.15.0-153.163
   linux-image-5.15.0-153-lowlatency-64k  5.15.0-153.163
   linux-image-aws-5.15            5.15.0.1091.94
   linux-image-aws-64k-5.15        5.15.0.1091.94
   linux-image-aws-64k-lts-22.04   5.15.0.1091.94
   linux-image-aws-lts-22.04       5.15.0.1091.94
   linux-image-gcp-5.15            5.15.0.1091.87
   linux-image-gcp-lts-22.04       5.15.0.1091.87
   linux-image-generic             5.15.0.153.153
   linux-image-generic-5.15        5.15.0.153.153
   linux-image-generic-64k         5.15.0.153.153
   linux-image-generic-64k-5.15    5.15.0.153.153
   linux-image-generic-lpae        5.15.0.153.153
   linux-image-generic-lpae-5.15   5.15.0.153.153
   linux-image-gkeop               5.15.0.1074.73
   linux-image-gkeop-5.15          5.15.0.1074.73
   linux-image-ibm                 5.15.0.1085.81
   linux-image-ibm-5.15            5.15.0.1085.81
   linux-image-intel-iotg          5.15.0.1086.86
   linux-image-intel-iotg-5.15     5.15.0.1086.86
   linux-image-lowlatency          5.15.0.153.134
   linux-image-lowlatency-5.15     5.15.0.153.134
   linux-image-lowlatency-64k      5.15.0.153.134
   linux-image-lowlatency-64k-5.15  5.15.0.153.134
   linux-image-nvidia              5.15.0.1086.86
   linux-image-nvidia-5.15         5.15.0.1086.86
   linux-image-nvidia-lowlatency   5.15.0.1086.86
   linux-image-nvidia-lowlatency-5.15  5.15.0.1086.86
   linux-image-nvidia-tegra        5.15.0.1044.44
   linux-image-nvidia-tegra-5.15   5.15.0.1044.44
   linux-image-nvidia-tegra-igx    5.15.0.1033.35
   linux-image-nvidia-tegra-igx-5.15  5.15.0.1033.35
   linux-image-nvidia-tegra-igx-rt  5.15.0.1033.35
   linux-image-nvidia-tegra-igx-rt-5.15  5.15.0.1033.35
   linux-image-nvidia-tegra-rt     5.15.0.1044.44
   linux-image-nvidia-tegra-rt-5.15  5.15.0.1044.44
   linux-image-oracle-5.15         5.15.0.1089.85
   linux-image-oracle-lts-22.04    5.15.0.1089.85
   linux-image-raspi               5.15.0.1085.83
   linux-image-raspi-5.15          5.15.0.1085.83
   linux-image-raspi-nolpae        5.15.0.1085.83
   linux-image-virtual             5.15.0.153.153
   linux-image-virtual-5.15        5.15.0.153.153
   linux-image-xilinx-zynqmp       5.15.0.1055.58
   linux-image-xilinx-zynqmp-5.15  5.15.0.1055.58

Ubuntu 20.04 LTS
   linux-image-5.15.0-1044-nvidia-tegra  5.15.0-1044.44~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1044-nvidia-tegra-rt  5.15.0-1044.44~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1086-intel-iotg  5.15.0-1086.92~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1091-aws     5.15.0-1091.98~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-1091-gcp     5.15.0-1091.100~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-153-generic  5.15.0-153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-153-generic-64k  5.15.0-153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-153-generic-lpae  5.15.0-153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-153-lowlatency  5.15.0-153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-153-lowlatency-64k  5.15.0-153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 5.15.0.1091.98~20.04.1
                                   Available with Ubuntu Pro
   linux-image-aws-5.15            5.15.0.1091.98~20.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp                 5.15.0.1091.100~20.04.1
                                   Available with Ubuntu Pro
   linux-image-gcp-5.15            5.15.0.1091.100~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-5.15        5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-64k-5.15    5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-64k-hwe-20.04  5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-hwe-20.04   5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-lpae-5.15   5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-lpae-hwe-20.04  5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel               5.15.0.1086.92~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel-iotg          5.15.0.1086.92~20.04.1
                                   Available with Ubuntu Pro
   linux-image-intel-iotg-5.15     5.15.0.1086.92~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-5.15     5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-64k-5.15  5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-64k-hwe-20.04  5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-hwe-20.04  5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-nvidia-tegra        5.15.0.1044.44~20.04.1
                                   Available with Ubuntu Pro
   linux-image-nvidia-tegra-5.15   5.15.0.1044.44~20.04.1
                                   Available with Ubuntu Pro
   linux-image-nvidia-tegra-rt     5.15.0.1044.44~20.04.1
                                   Available with Ubuntu Pro
   linux-image-nvidia-tegra-rt-5.15  5.15.0.1044.44~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04           5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04b          5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04c          5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04d          5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-5.15        5.15.0.153.163~20.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-hwe-20.04   5.15.0.153.163~20.04.1
                                   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-7726-1
   CVE-2024-27407, CVE-2024-57996, CVE-2025-37752, CVE-2025-38350

Package Information:
   https://launchpad.net/ubuntu/+source/linux/5.15.0-153.163
   https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1091.98
   https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1091.100
   https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1074.82
   https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1085.88
   https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1086.92
   https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-153.163
   https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1086.87
   https://launchpad.net/ubuntu/+source/linux-nvidia-tegra/5.15.0-1044.44
   https://launchpad.net/ubuntu/+source/linux-nvidia-tegra-igx/5.15.0-1033.33
   https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1089.95
   https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1085.88
   https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.15.0-1055.59