---
id: CVE-2025-37980
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  block: fix resource leak in blk_register_queue() error path

  When registering a queue fails after blk_mq_sysfs_register() is
  successful but the function later encounter…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  block: fix resource leak in blk_register_queue() error path

  When registering a queue fails after blk_mq_sysfs_register() is
  successful but the function later encounter…
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'
cwe:
  - CWE-401
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 3.13, < 6.6.88'
  - 'linux_kernel >= 6.7, < 6.12.25'
  - 'linux_kernel >= 6.13, < 6.14.4'
  - linux_kernel = 6.15
patched:
  - linux_kernel 6.14.4
published: '2025-05-20'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:17:50.243'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-37980'
references:
  - url: 'https://git.kernel.org/stable/c/40f2eb9b531475dd01b683fdaf61ca3cfd03a51e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/41e43134ddda35949974be40520460a12dda3502'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/549cbbd14bbec12469ceb279b79c763c8a24224e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/55a7bb2708f7c7c5b366d4e40916113168a3824c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6af6d5feebf9423ab3b252831d1f52de31a8b5e0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-019113.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-082556.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-457936.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00194
epssPercentile: 0.09025
ingestedAt: '2026-09-08T15:33:26.997Z'
---

## Overview

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

block: fix resource leak in blk_register_queue() error path

When registering a queue fails after blk_mq_sysfs_register() is
successful but the function later encounters an error, we need
to clean up the blk_mq_sysfs resources.

Add the missing blk_mq_sysfs_unregister() call in the error path
to properly clean up these resources and prevent a memory leak.

## Affected

- `linux_kernel >= 3.13, < 6.6.88`
- `linux_kernel >= 6.7, < 6.12.25`
- `linux_kernel >= 6.13, < 6.14.4`
- `linux_kernel = 6.15`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.14.4`