# wifi: mt76: mt7915: clear wcid mask under mutex after RCU pointer clear

CVE record · `CVE-2026-90373`

- **Identifiers:** `CVE-2026-90373`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `f3049b88b2b32326df97461813ae73e8bbc296fc to before 5dce25f1d609ba991a9c22c27be586c92f03ed77` (git)
  - affected: `f3049b88b2b32326df97461813ae73e8bbc296fc to before b4a41a47a67c788e6b0625fa517ec8872e99bb6c` (git)
  - affected: `f3049b88b2b32326df97461813ae73e8bbc296fc to before a97b2b942d2f8f12fbd6a7caafc735d1ad115e6b` (git)
  - affected: `f3049b88b2b32326df97461813ae73e8bbc296fc to before 6486e11a6e2f679597af2d5bb48c3b07a2b2a7ba` (git)
  - affected: `b7c8e22dfddacc1b08dbf44f5be2c66305d757bc` (git)
  - affected: `a582b1d54313dcdc96e7d8e1f49495dd71ddaf3e` (git)
  - affected: `6.1.191 to before 6.2` (semver)
  - affected: `6.6.160 to before 6.7` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.12`
  - unaffected: `before 6.12` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel mt76 mt7915 Wi-Fi driver, in 6.12 and affected earlier versions, has a race when interfaces are removed on dual-band devices that can leak or double-assign a station index. The source gives few details on what an attacker needs or can gain. Upgrade to 6.12.110, 6.18.52, 7.2.6, or 7.3 or later.

Written 12 Nov 2026.

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 10th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90373](https://www.cve.org/CVERecord?id=CVE-2026-90373)
- [NVD: CVE-2026-90373](https://nvd.nist.gov/vuln/detail/CVE-2026-90373)

### References from the CNA

- <https://git.kernel.org/stable/c/5dce25f1d609ba991a9c22c27be586c92f03ed77>
- <https://git.kernel.org/stable/c/b4a41a47a67c788e6b0625fa517ec8872e99bb6c>
- <https://git.kernel.org/stable/c/a97b2b942d2f8f12fbd6a7caafc735d1ad115e6b>
- <https://git.kernel.org/stable/c/6486e11a6e2f679597af2d5bb48c3b07a2b2a7ba>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-90373>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90373/>. Everything for agents: <https://agentprime.io/llms.txt>.