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Alerts This Week
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Ubuntu 22.04 LTS: USN-7726-1 Linux Kernel Critical Security Update

ubuntu
Calendar Grey August 28, 2025
Dist Ubuntu Esm H88
Numerous significant vulnerabilities in the Linux kernel on Ubuntu demand immediate patches to avert possible security breaches.
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-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 enabl...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise Linux kernel network control

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

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7726-1

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise Linux kernel network control

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

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