Advisory Published

USN-7455-1: Linux kernel vulnerabilities

First published: Thu Apr 24 2025(Updated: )

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:

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.15.0-1023-nvidia-tegra-igx<5.15.0-1023.23
5.15.0-1023.23
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1023-nvidia-tegra-igx-rt<5.15.0-1023.23
5.15.0-1023.23
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1035-nvidia-tegra<5.15.0-1035.35
5.15.0-1035.35
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1035-nvidia-tegra-rt<5.15.0-1035.35
5.15.0-1035.35
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1064-gkeop<5.15.0-1064.72
5.15.0-1064.72
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1074-ibm<5.15.0-1074.77
5.15.0-1074.77
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1076-nvidia<5.15.0-1076.77
5.15.0-1076.77
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1076-nvidia-lowlatency<5.15.0-1076.77
5.15.0-1076.77
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1076-raspi<5.15.0-1076.79
5.15.0-1076.79
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1077-intel-iotg<5.15.0-1077.83
5.15.0-1077.83
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1078-kvm<5.15.0-1078.83
5.15.0-1078.83
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1079-gke<5.15.0-1079.85
5.15.0-1079.85
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1079-oracle<5.15.0-1079.85
5.15.0-1079.85
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1081-gcp<5.15.0-1081.90
5.15.0-1081.90
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1082-aws<5.15.0-1082.89
5.15.0-1082.89
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1087-azure<5.15.0-1087.96
5.15.0-1087.96
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1087-azure-fde<5.15.0-1087.96.1
5.15.0-1087.96.1
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-138-generic<5.15.0-138.148
5.15.0-138.148
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-138-generic-64k<5.15.0-138.148
5.15.0-138.148
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-138-generic-lpae<5.15.0-138.148
5.15.0-138.148
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-138-lowlatency<5.15.0-138.148
5.15.0-138.148
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-138-lowlatency-64k<5.15.0-138.148
5.15.0-138.148
Ubuntu=22.04
All of
ubuntu/linux-image-aws-lts-22.04<5.15.0.1082.84
5.15.0.1082.84
Ubuntu=22.04
All of
ubuntu/linux-image-azure-fde-lts-22.04<5.15.0.1087.96.64
5.15.0.1087.96.64
Ubuntu=22.04
All of
ubuntu/linux-image-azure-lts-22.04<5.15.0.1087.85
5.15.0.1087.85
Ubuntu=22.04
All of
ubuntu/linux-image-gcp-lts-22.04<5.15.0.1081.77
5.15.0.1081.77
Ubuntu=22.04
All of
ubuntu/linux-image-generic<5.15.0.138.134
5.15.0.138.134
Ubuntu=22.04
All of
ubuntu/linux-image-generic-64k<5.15.0.138.134
5.15.0.138.134
Ubuntu=22.04
All of
ubuntu/linux-image-generic-lpae<5.15.0.138.134
5.15.0.138.134
Ubuntu=22.04
All of
ubuntu/linux-image-gke<5.15.0.1079.78
5.15.0.1079.78
Ubuntu=22.04
All of
ubuntu/linux-image-gke-5.15<5.15.0.1079.78
5.15.0.1079.78
Ubuntu=22.04
All of
ubuntu/linux-image-gkeop<5.15.0.1064.63
5.15.0.1064.63
Ubuntu=22.04
All of
ubuntu/linux-image-gkeop-5.15<5.15.0.1064.63
5.15.0.1064.63
Ubuntu=22.04
All of
ubuntu/linux-image-ibm<5.15.0.1074.70
5.15.0.1074.70
Ubuntu=22.04
All of
ubuntu/linux-image-intel-iotg<5.15.0.1077.77
5.15.0.1077.77
Ubuntu=22.04
All of
ubuntu/linux-image-kvm<5.15.0.1078.74
5.15.0.1078.74
Ubuntu=22.04
All of
ubuntu/linux-image-lowlatency<5.15.0.138.124
5.15.0.138.124
Ubuntu=22.04
All of
ubuntu/linux-image-lowlatency-64k<5.15.0.138.124
5.15.0.138.124
Ubuntu=22.04
All of
ubuntu/linux-image-nvidia<5.15.0.1076.76
5.15.0.1076.76
Ubuntu=22.04
All of
ubuntu/linux-image-nvidia-lowlatency<5.15.0.1076.76
5.15.0.1076.76
Ubuntu=22.04
All of
ubuntu/linux-image-nvidia-tegra<5.15.0.1035.35
5.15.0.1035.35
Ubuntu=22.04
All of
ubuntu/linux-image-nvidia-tegra-igx<5.15.0.1023.25
5.15.0.1023.25
Ubuntu=22.04
All of
ubuntu/linux-image-nvidia-tegra-igx-rt<5.15.0.1023.25
5.15.0.1023.25
Ubuntu=22.04
All of
ubuntu/linux-image-nvidia-tegra-rt<5.15.0.1035.35
5.15.0.1035.35
Ubuntu=22.04
All of
ubuntu/linux-image-oracle-lts-22.04<5.15.0.1079.75
5.15.0.1079.75
Ubuntu=22.04
All of
ubuntu/linux-image-raspi<5.15.0.1076.74
5.15.0.1076.74
Ubuntu=22.04
All of
ubuntu/linux-image-raspi-nolpae<5.15.0.1076.74
5.15.0.1076.74
Ubuntu=22.04
All of
ubuntu/linux-image-virtual<5.15.0.138.134
5.15.0.138.134
Ubuntu=22.04
All of
ubuntu/linux-image-5.15.0-1087-azure<5.15.0-1087.96~20.04.1
5.15.0-1087.96~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-1087-azure-fde<5.15.0-1087.96~20.04.1.1
5.15.0-1087.96~20.04.1.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-138-generic<5.15.0-138.148~20.04.1
5.15.0-138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-138-generic-64k<5.15.0-138.148~20.04.1
5.15.0-138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-138-generic-lpae<5.15.0-138.148~20.04.1
5.15.0-138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-138-lowlatency<5.15.0-138.148~20.04.1
5.15.0-138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-5.15.0-138-lowlatency-64k<5.15.0-138.148~20.04.1
5.15.0-138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-azure<5.15.0.1087.96~20.04.1
5.15.0.1087.96~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-azure-cvm<5.15.0.1087.96~20.04.1
5.15.0.1087.96~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-azure-fde<5.15.0.1087.96~20.04.1.62
5.15.0.1087.96~20.04.1.62
Ubuntu=20.04
All of
ubuntu/linux-image-generic-64k-hwe-20.04<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-generic-hwe-20.04<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-generic-lpae-hwe-20.04<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-lowlatency-64k-hwe-20.04<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-lowlatency-hwe-20.04<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04b<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04c<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04
All of
ubuntu/linux-image-virtual-hwe-20.04<5.15.0.138.148~20.04.1
5.15.0.138.148~20.04.1
Ubuntu=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-7455-1?

    The severity of USN-7455-1 is considered high due to its potential to cause a denial of service or privilege escalation.

  • How do I fix USN-7455-1?

    To fix USN-7455-1, update your Linux kernel to the latest patched version as specified in the security notice.

  • Which versions are affected by USN-7455-1?

    USN-7455-1 affects multiple versions of the Ubuntu 22.04 Linux kernel, specifically prior to 5.15.0-138.148.

  • What type of vulnerability is USN-7455-1?

    USN-7455-1 addresses an out-of-bounds write vulnerability in the watch_queue event notification subsystem of the Linux kernel.

  • Who discovered the vulnerability related to USN-7455-1?

    The vulnerability in USN-7455-1 was discovered by Jann Horn.

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