---
id: CVE-2022-0264
title: >-
  A vulnerability was found in the Linux kernel's eBPF verifier when handling
  internal data structures
summary: >-
  A vulnerability was found in the Linux kernel's eBPF verifier when handling
  internal data structures. Internal memory locations could be returned to
  userspace. A local attacker with the permissions to insert eBPF code to the
  kernel can u…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-755
  - CWE-755
vendor: linux
product: linux_kernel
affected:
  - linux_kernel < 5.16
  - linux_kernel = 5.16
patched:
  - linux_kernel 5.16
published: '2022-02-04'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T21:17:43.203'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-0264'
references:
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2041547'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2041547'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00255
epssPercentile: 0.15641
ingestedAt: '2026-10-08T22:11:53.746Z'
---

## Overview

A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. This flaws affects kernel versions < v5.16-rc6

## Affected

- `linux_kernel < 5.16`
- `linux_kernel = 5.16`

## Remediation

Upgrade past the affected range:

- `linux_kernel 5.16`