---
id: "CVE-2022-0995"
kind: "vulnerability"
aliases: ["CVE-2022-0995"]
title: "An out-of-bounds (OOB) memory write flaw was found in the Linux kernel\u2019s watch_queue event notification subsystem"
severity: "high"
cvss: 7.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "linux kernel", "fixed": ["5.10.106"], "affected": ">= 5.8, < 5.10.106", "ecosystem": "vendor"}, {"name": "linux kernel", "fixed": ["5.15.29"], "affected": ">= 5.11, < 5.15.29", "ecosystem": "vendor"}, {"name": "linux kernel", "fixed": ["5.16.5"], "affected": ">= 5.16, < 5.16.5", "ecosystem": "vendor"}, {"name": "linux kernel", "fixed": [], "affected": "= 5.17", "ecosystem": "vendor"}, {"name": "fedoraproject fedora", "fixed": [], "affected": "= 35", "ecosystem": "vendor"}, {"name": "netapp h300e firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h300s firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h410c firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h410s firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h500e firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h500s firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h610c firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h610s firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h615c firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h700e firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "netapp h700s firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "Linux Kernel", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "kubernetes", "linux", "self-hosted", "shared-hosts"]
not_affected_if: ["managed-hosting", "no-local-users"]
published_at: "2022-03-25T19:15:10+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-24T00:09:50+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-0995", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0995", "first_seen_at": "2026-10-23T23:44:52+00:00"}]
---

# An out-of-bounds (OOB) memory write flaw was found in the Linux kernel’s watch_queue event notification subsystem

The Linux kernel has an out-of-bounds write that lets a local user, meaning someone already with a shell or code running on the machine, gain root privileges or crash the system. CISA lists it as actively exploited.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:linux kernel affected >= 5.8, < 5.10.106 fixed 5.10.106
- vendor:linux kernel affected >= 5.11, < 5.15.29 fixed 5.15.29
- vendor:linux kernel affected >= 5.16, < 5.16.5 fixed 5.16.5
- vendor:linux kernel affected = 5.17 fixed ?
- vendor:fedoraproject fedora affected = 35 fixed ?
- vendor:netapp h300e firmware affected ? fixed ?
- vendor:netapp h300s firmware affected ? fixed ?
- vendor:netapp h410c firmware affected ? fixed ?
- vendor:netapp h410s firmware affected ? fixed ?
- vendor:netapp h500e firmware affected ? fixed ?
- vendor:netapp h500s firmware affected ? fixed ?
- vendor:netapp h610c firmware affected ? fixed ?
- vendor:netapp h610s firmware affected ? fixed ?
- vendor:netapp h615c firmware affected ? fixed ?
- vendor:netapp h700e firmware affected ? fixed ?
- vendor:netapp h700s firmware affected ? fixed ?
- vendor:Linux Kernel affected ? fixed ?

## How to check

uname -r to see the running kernel version, then compare it against the fixed kernel builds from your distribution's security advisory for CVE-2022-0995

## Fix

Install the patched kernel from your distribution or vendor (exact fixed versions: unknown from these sources) and reboot. CISA's required action is to apply vendor mitigations; if none are available, discontinue use of the affected product.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-0995
- 2026-10-23T23:44:52+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2022-0995

## From the sources

Linux Kernel contains an out-of-bounds memory write vulnerability which could allow a local user to gain privileged access or cause a denial of service on the system.

CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

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