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Ubuntu 22.04 LTS: Linux Kernel Critical Threats USN-7793-1

ubuntu
Calendar Grey October 1, 2025
Scroller Ubuntu
Several security issues in the Linux kernel were fixed, affecting Ubuntu LTS releases, urging prompt updates due to critical risk.
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-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-ibm-5.15: Linux kernel for IBM cloud systems

- linux-intel-i...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise network threat Linux kernel

Update Instructions

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1046-nvidia-tegra  5.15.0-1046.46
  linux-image-5.15.0-1046-nvidia-tegra-rt  5.15.0-1046.46
  linux-image-5.15.0-1057-xilinx-zynqmp  5.15.0-1057.61
  linux-image-5.15.0-1076-gkeop   5.15.0-1076.84
  linux-image-5.15.0-1087-ibm     5.15.0-1087.90
  linux-image-5.15.0-1087-raspi   5.15.0-1087.90
  linux-image-5.15.0-1088-intel-iotg  5.15.0-1088.94
  linux-image-5.15.0-1088-nvidia  5.15.0-1088.89
  linux-image-5.15.0-1088-nvidia-lowlatency  5.15.0-1088.89
  linux-image-5.15.0-1091-oracle  5.15.0-1091.97
  linux-image-5.15.0-1093-aws     5.15.0-1093.100
  linux-image-5.15.0-1093-aws-64k  5.15.0-1093.100
  linux-image-5.15.0-1093-gcp     5.15.0-1093.102
  linux-image-5.15.0-157-generic  5.15.0-157.167
  linux-image-5.15.0-157-generic-64k  5.15.0-157.167
  linux-image-5.15.0-157-generic-lpae  5.15.0-157.167
  linux-image-5.15.0-157-lowlatency  5.15.0-157.167
  linux-image-5.15.0-157-lowlatency-64k  5.15.0-157.167
  linux-image-aws-5.15            5.15.0.1093.96
  linux-image-aws-64k-5.15        5.15.0.1093.96
  linux-image-aws-64k-lts-22.04   5.15.0.1093.96
  linux-image-aws-lts-22.04       5.15.0.1093.96
  linux-image-gcp-5.15            5.15.0.1093.89
  linux-image-gcp-lts-22.04       5.15.0.1093.89
  linux-image-generic             5.15.0.157.155
  linux-image-generic-5.15        5.15.0.157.155
  linux-image-generic-64k         5.15.0.157.155
  linux-image-generic-64k-5.15    5.15.0.157.155
  linux-image-generic-lpae        5.15.0.157.155
  linux-image-generic-lpae-5.15   5.15.0.157.155
  linux-image-gkeop               5.15.0.1076.75
  linux-image-gkeop-5.15          5.15.0.1076.75
  linux-image-ibm                 5.15.0.1087.83
  linux-image-ibm-5.15            5.15.0.1087.83
  linux-image-intel-iotg          5.15.0.1088.88
  linux-image-intel-iotg-5.15     5.15.0.1088.88
  linux-image-lowlatency          5.15.0.157.136
  linux-image-lowlatency-5.15     5.15.0.157.136
  linux-image-lowlatency-64k      5.15.0.157.136
  linux-image-lowlatency-64k-5.15  5.15.0.157.136
  linux-image-nvidia              5.15.0.1088.88
  linux-image-nvidia-5.15         5.15.0.1088.88
  linux-image-nvidia-lowlatency   5.15.0.1088.88
  linux-image-nvidia-lowlatency-5.15  5.15.0.1088.88
  linux-image-nvidia-tegra        5.15.0.1046.46
  linux-image-nvidia-tegra-5.15   5.15.0.1046.46
  linux-image-nvidia-tegra-rt     5.15.0.1046.46
  linux-image-nvidia-tegra-rt-5.15  5.15.0.1046.46
  linux-image-oracle-5.15         5.15.0.1091.87
  linux-image-oracle-lts-22.04    5.15.0.1091.87
  linux-image-raspi               5.15.0.1087.85
  linux-image-raspi-5.15          5.15.0.1087.85
  linux-image-raspi-nolpae        5.15.0.1087.85
  linux-image-virtual             5.15.0.157.155
  linux-image-virtual-5.15        5.15.0.157.155
  linux-image-xilinx-zynqmp       5.15.0.1057.60
  linux-image-xilinx-zynqmp-5.15  5.15.0.1057.60

Ubuntu 20.04 LTS
  linux-image-5.15.0-1046-nvidia-tegra  5.15.0-1046.46~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1046-nvidia-tegra-rt  5.15.0-1046.46~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1087-ibm     5.15.0-1087.90~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1088-intel-iotg  5.15.0-1088.94~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1093-aws     5.15.0-1093.100~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-1093-gcp     5.15.0-1093.102~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-157-generic  5.15.0-157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-157-generic-64k  5.15.0-157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-157-generic-lpae  5.15.0-157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-157-lowlatency  5.15.0-157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-5.15.0-157-lowlatency-64k  5.15.0-157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-aws                 5.15.0.1093.100~20.04.1
                                  Available with Ubuntu Pro
  linux-image-aws-5.15            5.15.0.1093.100~20.04.1
                                  Available with Ubuntu Pro
  linux-image-gcp                 5.15.0.1093.102~20.04.1
                                  Available with Ubuntu Pro
  linux-image-gcp-5.15            5.15.0.1093.102~20.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-5.15        5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-64k-5.15    5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-64k-hwe-20.04  5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-hwe-20.04   5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-lpae-5.15   5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-lpae-hwe-20.04  5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-ibm                 5.15.0.1087.90~20.04.1
                                  Available with Ubuntu Pro
  linux-image-ibm-5.15            5.15.0.1087.90~20.04.1
                                  Available with Ubuntu Pro
  linux-image-intel               5.15.0.1088.94~20.04.1
                                  Available with Ubuntu Pro
  linux-image-intel-iotg          5.15.0.1088.94~20.04.1
                                  Available with Ubuntu Pro
  linux-image-intel-iotg-5.15     5.15.0.1088.94~20.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-5.15     5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-64k-5.15  5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-64k-hwe-20.04  5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-hwe-20.04  5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-nvidia-tegra        5.15.0.1046.46~20.04.1
                                  Available with Ubuntu Pro
  linux-image-nvidia-tegra-5.15   5.15.0.1046.46~20.04.1
                                  Available with Ubuntu Pro
  linux-image-nvidia-tegra-rt     5.15.0.1046.46~20.04.1
                                  Available with Ubuntu Pro
  linux-image-nvidia-tegra-rt-5.15  5.15.0.1046.46~20.04.1
                                  Available with Ubuntu Pro
  linux-image-oem-20.04           5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-oem-20.04b          5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-oem-20.04c          5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-oem-20.04d          5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-virtual-5.15        5.15.0.157.167~20.04.1
                                  Available with Ubuntu Pro
  linux-image-virtual-hwe-20.04   5.15.0.157.167~20.04.1
                                  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-7793-1

CVE-2025-38477, CVE-2025-38618

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7793-1

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise network threat Linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/5.15.0-157.167
https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1093.100
https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1093.102
https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1076.84
https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1087.90
https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1088.94
https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-157.167
https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1088.89
https://launchpad.net/ubuntu/+source/linux-nvidia-tegra/5.15.0-1046.46
https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1091.97
https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1087.90
https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.15.0-1057.61

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