---
id: CVE-2026-74706
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  bnge: Fix NULL pointer dereference in aux device release

  If allocation of auxr_dev fails during auxiliary device setup, the error
  path calls auxiliary_device_uninit(),…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  bnge: Fix NULL pointer dereference in aux device release

  If allocation of auxr_dev fails during auxiliary device setup, the error
  path calls auxiliary_device_uninit(),…
severity: none
published: '2026-08-22'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-74706'
references:
  - url: 'https://git.kernel.org/stable/c/1cb4298810e27e037d3ca07286ecbb97e89ba58d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/83ef2f3cab7fe6dd9155cd598dc64be524d963a9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00198
epssPercentile: 0.08868
ingestedAt: '2026-10-14T13:30:58.543Z'
---

## Overview

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

bnge: Fix NULL pointer dereference in aux device release

If allocation of auxr_dev fails during auxiliary device setup, the error
path calls auxiliary_device_uninit(), which eventually invokes
bnge_aux_dev_release().

The release callback unconditionally dereferences aux_priv->auxr_dev->pdev
to retrieve the parent bnge_dev. Since auxr_dev has not yet been allocated
on this failure path, the dereference results in a NULL pointer exception

Retrieve the parent bnge_dev from the auxiliary device's parent instead of
auxr_dev, and free auxr_dev only when it was successfully allocated. This
allows the release callback to correctly clean up partially initialized
auxiliary devices.

## Remediation

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