==========================================================================
Ubuntu Security Notice USN-7455-1
April 24, 2025
linux, linux-aws, linux-azure, linux-azure-5.15, linux-azure-fde,
linux-azure-fde-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15,
linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency,
linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra,
linux-nvidia-tegra-igx, linux-oracle, linux-raspi 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-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-azure-fde: Linux kernel for Microsoft Azure CVM cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) 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-kvm: Linux kernel for cloud environments
- 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-azure-5.15: Linux kernel for Microsoft Azure cloud systems
- linux-azure-fde-5.15: Linux kernel for Microsoft Azure CVM cloud systems
- linux-hwe-5.15: Linux hardware enablement (HWE) kernel
- linux-lowlatency-hwe-5.15: Linux low latency kernel
Details:
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
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:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2025-21703, CVE-2024-56651, CVE-2024-50248, CVE-2025-21701,
CVE-2024-26837, CVE-2024-46826, CVE-2025-21993, CVE-2025-21702,
CVE-2024-50256, CVE-2025-21756, CVE-2025-21700)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS
linux-image-5.15.0-1023-nvidia-tegra-igx 5.15.0-1023.23
linux-image-5.15.0-1023-nvidia-tegra-igx-rt 5.15.0-1023.23
linux-image-5.15.0-1035-nvidia-tegra 5.15.0-1035.35
linux-image-5.15.0-1035-nvidia-tegra-rt 5.15.0-1035.35
linux-image-5.15.0-1064-gkeop 5.15.0-1064.72
linux-image-5.15.0-1074-ibm 5.15.0-1074.77
linux-image-5.15.0-1076-nvidia 5.15.0-1076.77
linux-image-5.15.0-1076-nvidia-lowlatency 5.15.0-1076.77
linux-image-5.15.0-1076-raspi 5.15.0-1076.79
linux-image-5.15.0-1077-intel-iotg 5.15.0-1077.83
linux-image-5.15.0-1078-kvm 5.15.0-1078.83
linux-image-5.15.0-1079-gke 5.15.0-1079.85
linux-image-5.15.0-1079-oracle 5.15.0-1079.85
linux-image-5.15.0-1081-gcp 5.15.0-1081.90
linux-image-5.15.0-1082-aws 5.15.0-1082.89
linux-image-5.15.0-1087-azure 5.15.0-1087.96
linux-image-5.15.0-1087-azure-fde 5.15.0-1087.96.1
linux-image-5.15.0-138-generic 5.15.0-138.148
linux-image-5.15.0-138-generic-64k 5.15.0-138.148
linux-image-5.15.0-138-generic-lpae 5.15.0-138.148
linux-image-5.15.0-138-lowlatency 5.15.0-138.148
linux-image-5.15.0-138-lowlatency-64k 5.15.0-138.148
linux-image-aws-lts-22.04 5.15.0.1082.84
linux-image-azure-fde-lts-22.04 5.15.0.1087.96.64
linux-image-azure-lts-22.04 5.15.0.1087.85
linux-image-gcp-lts-22.04 5.15.0.1081.77
linux-image-generic 5.15.0.138.134
linux-image-generic-64k 5.15.0.138.134
linux-image-generic-lpae 5.15.0.138.134
linux-image-gke 5.15.0.1079.78
linux-image-gke-5.15 5.15.0.1079.78
linux-image-gkeop 5.15.0.1064.63
linux-image-gkeop-5.15 5.15.0.1064.63
linux-image-ibm 5.15.0.1074.70
linux-image-intel-iotg 5.15.0.1077.77
linux-image-kvm 5.15.0.1078.74
linux-image-lowlatency 5.15.0.138.124
linux-image-lowlatency-64k 5.15.0.138.124
linux-image-nvidia 5.15.0.1076.76
linux-image-nvidia-lowlatency 5.15.0.1076.76
linux-image-nvidia-tegra 5.15.0.1035.35
linux-image-nvidia-tegra-igx 5.15.0.1023.25
linux-image-nvidia-tegra-igx-rt 5.15.0.1023.25
linux-image-nvidia-tegra-rt 5.15.0.1035.35
linux-image-oracle-lts-22.04 5.15.0.1079.75
linux-image-raspi 5.15.0.1076.74
linux-image-raspi-nolpae 5.15.0.1076.74
linux-image-virtual 5.15.0.138.134
Ubuntu 20.04 LTS
linux-image-5.15.0-1087-azure 5.15.0-1087.96~20.04.1
linux-image-5.15.0-1087-azure-fde 5.15.0-1087.96~20.04.1.1
linux-image-5.15.0-138-generic 5.15.0-138.148~20.04.1
linux-image-5.15.0-138-generic-64k 5.15.0-138.148~20.04.1
linux-image-5.15.0-138-generic-lpae 5.15.0-138.148~20.04.1
linux-image-5.15.0-138-lowlatency 5.15.0-138.148~20.04.1
linux-image-5.15.0-138-lowlatency-64k 5.15.0-138.148~20.04.1
linux-image-azure 5.15.0.1087.96~20.04.1
linux-image-azure-cvm 5.15.0.1087.96~20.04.1
linux-image-azure-fde 5.15.0.1087.96~20.04.1.62
linux-image-generic-64k-hwe-20.04 5.15.0.138.148~20.04.1
linux-image-generic-hwe-20.04 5.15.0.138.148~20.04.1
linux-image-generic-lpae-hwe-20.04 5.15.0.138.148~20.04.1
linux-image-lowlatency-64k-hwe-20.04 5.15.0.138.148~20.04.1
linux-image-lowlatency-hwe-20.04 5.15.0.138.148~20.04.1
linux-image-oem-20.04 5.15.0.138.148~20.04.1
linux-image-oem-20.04b 5.15.0.138.148~20.04.1
linux-image-oem-20.04c 5.15.0.138.148~20.04.1
linux-image-oem-20.04d 5.15.0.138.148~20.04.1
linux-image-virtual-hwe-20.04 5.15.0.138.148~20.04.1
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-7455-1
CVE-2022-0995, CVE-2024-26837, CVE-2024-46826, CVE-2024-50248,
CVE-2024-50256, CVE-2024-56651, CVE-2025-21700, CVE-2025-21701,
CVE-2025-21702, CVE-2025-21703, CVE-2025-21756, CVE-2025-21993
Package Information:
https://launchpad.net/ubuntu/+source/linux/5.15.0-138.148
https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1082.89
https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1087.96
https://launchpad.net/ubuntu/+source/linux-azure-fde/5.15.0-1087.96.1
https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1081.90
https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1079.85
https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1064.72
https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1074.77
https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1077.83
https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1078.83
https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-138.148
https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1076.77
https://launchpad.net/ubuntu/+source/linux-nvidia-tegra/5.15.0-1035.35
https://launchpad.net/ubuntu/+source/linux-nvidia-tegra-igx/5.15.0-1023.23
https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1079.85
https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1076.79
https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1087.96~20.04.1
https://launchpad.net/ubuntu/+source/linux-azure-fde-5.15/5.15.0-1087.96~20.04.1.1
https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-138.148~20.04.1
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-138.148~20.04.1
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