Ubuntu Security Notices
USN-7726-1

USN-7726-1: Linux kernel vulnerabilities

Publication date

28 August 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

22.04 LTS 20.04 LTS

Packages

linux - Linux kernel
linux-aws - Linux kernel for Amazon Web Services (AWS) systems
linux-aws-5.15 - Linux kernel for Amazon Web Services (AWS) systems
linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
linux-gcp-5.15 - Linux kernel for Google Cloud Platform (GCP) systems
linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
linux-hwe-5.15 - Linux hardware enablement (HWE) kernel
linux-ibm - Linux kernel for IBM cloud systems
linux-intel-iotg - Linux kernel for Intel IoT platforms
linux-intel-iotg-5.15 - Linux kernel for Intel IoT platforms
linux-lowlatency - Linux low latency kernel
linux-lowlatency-hwe-5.15 - Linux low latency kernel
linux-nvidia - Linux kernel for NVIDIA systems
linux-nvidia-tegra - Linux kernel for NVIDIA Tegra systems
linux-nvidia-tegra-5.15 - 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

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

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

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release	Package Version
22.04 jammy	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
20.04 focal	linux-image-5.15.0-1044-nvidia-tegra – 5.15.0-1044.44~20.04.1
	linux-image-5.15.0-1044-nvidia-tegra-rt – 5.15.0-1044.44~20.04.1
	linux-image-5.15.0-1086-intel-iotg – 5.15.0-1086.92~20.04.1
	linux-image-5.15.0-1091-aws – 5.15.0-1091.98~20.04.1
	linux-image-5.15.0-1091-gcp – 5.15.0-1091.100~20.04.1
	linux-image-5.15.0-153-generic – 5.15.0-153.163~20.04.1
	linux-image-5.15.0-153-generic-64k – 5.15.0-153.163~20.04.1
	linux-image-5.15.0-153-generic-lpae – 5.15.0-153.163~20.04.1
	linux-image-5.15.0-153-lowlatency – 5.15.0-153.163~20.04.1
	linux-image-5.15.0-153-lowlatency-64k – 5.15.0-153.163~20.04.1
	linux-image-aws – 5.15.0.1091.98~20.04.1
	linux-image-aws-5.15 – 5.15.0.1091.98~20.04.1
	linux-image-gcp – 5.15.0.1091.100~20.04.1
	linux-image-gcp-5.15 – 5.15.0.1091.100~20.04.1
	linux-image-generic-5.15 – 5.15.0.153.163~20.04.1
	linux-image-generic-64k-5.15 – 5.15.0.153.163~20.04.1
	linux-image-generic-64k-hwe-20.04 – 5.15.0.153.163~20.04.1
	linux-image-generic-hwe-20.04 – 5.15.0.153.163~20.04.1
	linux-image-generic-lpae-5.15 – 5.15.0.153.163~20.04.1
	linux-image-generic-lpae-hwe-20.04 – 5.15.0.153.163~20.04.1
	linux-image-intel – 5.15.0.1086.92~20.04.1
	linux-image-intel-iotg – 5.15.0.1086.92~20.04.1
	linux-image-intel-iotg-5.15 – 5.15.0.1086.92~20.04.1
	linux-image-lowlatency-5.15 – 5.15.0.153.163~20.04.1
	linux-image-lowlatency-64k-5.15 – 5.15.0.153.163~20.04.1
	linux-image-lowlatency-64k-hwe-20.04 – 5.15.0.153.163~20.04.1
	linux-image-lowlatency-hwe-20.04 – 5.15.0.153.163~20.04.1
	linux-image-nvidia-tegra – 5.15.0.1044.44~20.04.1
	linux-image-nvidia-tegra-5.15 – 5.15.0.1044.44~20.04.1
	linux-image-nvidia-tegra-rt – 5.15.0.1044.44~20.04.1
	linux-image-nvidia-tegra-rt-5.15 – 5.15.0.1044.44~20.04.1
	linux-image-oem-20.04 – 5.15.0.153.163~20.04.1
	linux-image-oem-20.04b – 5.15.0.153.163~20.04.1
	linux-image-oem-20.04c – 5.15.0.153.163~20.04.1
	linux-image-oem-20.04d – 5.15.0.153.163~20.04.1
	linux-image-virtual-5.15 – 5.15.0.153.163~20.04.1
	linux-image-virtual-hwe-20.04 – 5.15.0.153.163~20.04.1

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References

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