---
id: CVE-2026-100074
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  bpf: Mark bpf_refcount field as unique

  BPF_REFCOUNT is not marked as a unique field, while it should be
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  bpf: Mark bpf_refcount field as unique

  BPF_REFCOUNT is not marked as a unique field, while it should be. Fix
  this oversight.
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d54730b50bae1f3119bd686d551d66f0fcc387ca <
    e42cede6f90177f4f92f80d3de18f628e61d2087
  - >-
    Linux >= d54730b50bae1f3119bd686d551d66f0fcc387ca <
    641f814965d733936ca3618d4d5a12a8fa9be00e
  - >-
    Linux >= d54730b50bae1f3119bd686d551d66f0fcc387ca <
    61e655391cb19c31f94ecd4354f624c81ce4cf75
  - Linux 6.4
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T14:17:13.973'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100074'
references:
  - url: 'https://git.kernel.org/stable/c/61e655391cb19c31f94ecd4354f624c81ce4cf75'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/641f814965d733936ca3618d4d5a12a8fa9be00e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e42cede6f90177f4f92f80d3de18f628e61d2087'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T14:09:46.375Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

bpf: Mark bpf_refcount field as unique

BPF_REFCOUNT is not marked as a unique field, while it should be. Fix
this oversight.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.