---
id: CVE-2024-50135
title: 'nvme-pci: fix race condition between reset and nvme_dev_disable()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  nvme-pci: fix race condition between reset and nvme_dev_disable()

  nvme_dev_disable() modifies the dev->online_queues field, therefore
  nvme_pci_update_nr_queues() shoul…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: adp
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 949928c1c731417cc0f070912c63878b62b544f4 <
    0beb55fc6086c86eb07954c914e728a8cb0cd57e
  - >-
    Linux >= 949928c1c731417cc0f070912c63878b62b544f4 <
    4ed32cc0939b64e3d7b48c8c0d63ea038775f304
  - >-
    Linux >= 949928c1c731417cc0f070912c63878b62b544f4 <
    b33e49a5f254474b33ce98fd45dd0ffdc247a0be
  - >-
    Linux >= 949928c1c731417cc0f070912c63878b62b544f4 <
    26bc0a81f64ce00fc4342c38eeb2eddaad084dd2
  - Linux 4.6
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2025-10-01T20:21:20.483764Z'
published: '2024-11-05'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T12:19:49.347Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2024-50135'
references:
  - url: 'https://git.kernel.org/stable/c/0beb55fc6086c86eb07954c914e728a8cb0cd57e'
  - url: 'https://git.kernel.org/stable/c/4ed32cc0939b64e3d7b48c8c0d63ea038775f304'
  - url: 'https://git.kernel.org/stable/c/b33e49a5f254474b33ce98fd45dd0ffdc247a0be'
  - url: 'https://git.kernel.org/stable/c/26bc0a81f64ce00fc4342c38eeb2eddaad084dd2'
tags:
  - cve.org
epss: 0.00165
epssPercentile: 0.05732
ingestedAt: '2026-11-03T14:47:02.511Z'
---

## Overview

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

nvme-pci: fix race condition between reset and nvme_dev_disable()

nvme_dev_disable() modifies the dev->online_queues field, therefore
nvme_pci_update_nr_queues() should avoid racing against it, otherwise
we could end up passing invalid values to blk_mq_update_nr_hw_queues().

 WARNING: CPU: 39 PID: 61303 at drivers/pci/msi/api.c:347
          pci_irq_get_affinity+0x187/0x210
 Workqueue: nvme-reset-wq nvme_reset_work [nvme]
 RIP: 0010:pci_irq_get_affinity+0x187/0x210
 Call Trace:
  <TASK>
  ? blk_mq_pci_map_queues+0x87/0x3c0
  ? pci_irq_get_affinity+0x187/0x210
  blk_mq_pci_map_queues+0x87/0x3c0
  nvme_pci_map_queues+0x189/0x460 [nvme]
  blk_mq_update_nr_hw_queues+0x2a/0x40
  nvme_reset_work+0x1be/0x2a0 [nvme]

Fix the bug by locking the shutdown_lock mutex before using
dev->online_queues. Give up if nvme_dev_disable() is running or if
it has been executed already.

## Affected

- `Linux >= 949928c1c731417cc0f070912c63878b62b544f4 < 0beb55fc6086c86eb07954c914e728a8cb0cd57e`
- `Linux >= 949928c1c731417cc0f070912c63878b62b544f4 < 4ed32cc0939b64e3d7b48c8c0d63ea038775f304`
- `Linux >= 949928c1c731417cc0f070912c63878b62b544f4 < b33e49a5f254474b33ce98fd45dd0ffdc247a0be`
- `Linux >= 949928c1c731417cc0f070912c63878b62b544f4 < 26bc0a81f64ce00fc4342c38eeb2eddaad084dd2`
- `Linux 4.6`

## Remediation

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