---
id: CVE-2026-45901
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  netfilter: nf_tables: revert commit_mutex usage in reset path

  It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset
  and nlk_cb_mutex when nft rese…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  netfilter: nf_tables: revert commit_mutex usage in reset path

  It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset
  and nlk_cb_mutex when nft rese…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 6.1.107, < 6.2'
  - 'linux_kernel >= 6.6.48, < 6.19.4'
patched:
  - linux_kernel 6.19.4
published: '2026-05-27'
updated: '2026-08-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-45901'
references:
  - url: 'https://git.kernel.org/stable/c/7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d66bedfe97a2bc321fa8118e669aae988038f729'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ee3978b6a0dcd4215cb7cedcba705a12174786a7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f6410d18c1e2da325df02be989d5bca5ed38b086'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.0016
epssPercentile: 0.05586
ingestedAt: '2026-08-03T10:24:19.953Z'
---

## Overview

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

netfilter: nf_tables: revert commit_mutex usage in reset path

It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset
and nlk_cb_mutex when nft reset, ipset list, and iptables-nft with '-m set'
rule run at the same time.

Previous patches made it safe to run individual reset handlers concurrently
so commit_mutex is no longer required to prevent this.

## Affected

- `linux_kernel >= 6.1.107, < 6.2`
- `linux_kernel >= 6.6.48, < 6.19.4`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.19.4`