# wifi: mt76: mt7915: fix ext PHY use-after-free on register error path

CVE record · `CVE-2026-90353`

- **Identifiers:** `CVE-2026-90353`
- **State:** Confirmed
- **Severity:** CVSS 7.0 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 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: `7b8e1ae886e45aed9274048f2836a70b75ecfa40 to before aa55bec92ba7747dd08feff409f8074c5e052e71` (git)
  - affected: `7b8e1ae886e45aed9274048f2836a70b75ecfa40 to before ad706fcf6255494613b94418e7243d98065dbeaf` (git)
  - affected: `7b8e1ae886e45aed9274048f2836a70b75ecfa40 to before 34058ad122f7524e33df8e38caba4b1d803b025a` (git)
  - affected: `7b8e1ae886e45aed9274048f2836a70b75ecfa40 to before a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5` (git)
  - affected: `7b8e1ae886e45aed9274048f2836a70b75ecfa40 to before 648f5f03ff50d4bd719106ace0cdf1d8be02cbdd` (git)
  - affected: `7b8e1ae886e45aed9274048f2836a70b75ecfa40 to before 15b960014f24dce5388d4a2e7274e6490cb3c421` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.19`
  - unaffected: `before 5.19` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (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

## 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

- 7.0 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0014, the 3rd 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-2026-90353](https://www.cve.org/CVERecord?id=CVE-2026-90353)
- [NVD: CVE-2026-90353](https://nvd.nist.gov/vuln/detail/CVE-2026-90353)

### References from the CNA

- <https://git.kernel.org/stable/c/aa55bec92ba7747dd08feff409f8074c5e052e71>
- <https://git.kernel.org/stable/c/ad706fcf6255494613b94418e7243d98065dbeaf>
- <https://git.kernel.org/stable/c/34058ad122f7524e33df8e38caba4b1d803b025a>
- <https://git.kernel.org/stable/c/a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5>
- <https://git.kernel.org/stable/c/648f5f03ff50d4bd719106ace0cdf1d8be02cbdd>
- <https://git.kernel.org/stable/c/15b960014f24dce5388d4a2e7274e6490cb3c421>

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-2026-90353>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90353/>. Everything for agents: <https://agentprime.io/llms.txt>.