---
id: CVE-2024-46860
title: 'wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change

  When disabling wifi mt7921_ipv6_addr_change() is called as a notifier.
  At this point mvif->phy i…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa <
    bcf390440080c24983ab035660203b17e7c7f31e
  - >-
    Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa <
    4bfee9346d8c17d928ef6da2b8bffab88fa2a553
  - >-
    Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa <
    8d92bafd4c67efb692f722d73a07412b5f88c6d6
  - >-
    Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa <
    479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3
  - Linux 4.16
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-09-29T13:54:01.586497Z'
published: '2024-09-27'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T12:19:24.447Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2024-46860'
references:
  - url: 'https://git.kernel.org/stable/c/bcf390440080c24983ab035660203b17e7c7f31e'
  - url: 'https://git.kernel.org/stable/c/4bfee9346d8c17d928ef6da2b8bffab88fa2a553'
  - url: 'https://git.kernel.org/stable/c/8d92bafd4c67efb692f722d73a07412b5f88c6d6'
  - url: 'https://git.kernel.org/stable/c/479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3'
tags:
  - cve.org
epss: 0.00206
epssPercentile: 0.1067
ingestedAt: '2026-11-03T13:45:42.694Z'
---

## Overview

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

wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change

When disabling wifi mt7921_ipv6_addr_change() is called as a notifier.
At this point mvif->phy is already NULL so we cannot use it here.

## Affected

- `Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < bcf390440080c24983ab035660203b17e7c7f31e`
- `Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < 4bfee9346d8c17d928ef6da2b8bffab88fa2a553`
- `Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < 8d92bafd4c67efb692f722d73a07412b5f88c6d6`
- `Linux >= 7bc04215a66b60e198aecaee8418f6d79fa19faa < 479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3`
- `Linux 4.16`

## Remediation

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