# net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621

CVE record · `CVE-2026-98565`

- **Identifiers:** `CVE-2026-98565`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:18 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: `ddda1ac116c852bb969541ed53cffef7255c4961 to before bd172580e624bac00d83abd5c4320d2e14d853bc` (git)
  - affected: `ddda1ac116c852bb969541ed53cffef7255c4961 to before e9a5298532780ecdd05c3220f3e1e3067b3537c3` (git)
  - affected: `ddda1ac116c852bb969541ed53cffef7255c4961 to before 62c0e38b2e5034184d4502ce77bd178b29e59b83` (git)
  - affected: `ddda1ac116c852bb969541ed53cffef7255c4961 to before aae2a1f1e3a0ac5eeb439262a2328a2a392413ac` (git)
  - affected: `ddda1ac116c852bb969541ed53cffef7255c4961 to before c2cdef41e0b4d8ed23a5b41e6ad4e64594e055e4` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.1`
  - unaffected: `before 5.1` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.55 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.9 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th percentile, on 7 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98565](https://www.cve.org/CVERecord?id=CVE-2026-98565)
- [NVD: CVE-2026-98565](https://nvd.nist.gov/vuln/detail/CVE-2026-98565)

### References from the CNA

- <https://git.kernel.org/stable/c/bd172580e624bac00d83abd5c4320d2e14d853bc>
- <https://git.kernel.org/stable/c/e9a5298532780ecdd05c3220f3e1e3067b3537c3>
- <https://git.kernel.org/stable/c/62c0e38b2e5034184d4502ce77bd178b29e59b83>
- <https://git.kernel.org/stable/c/aae2a1f1e3a0ac5eeb439262a2328a2a392413ac>
- <https://git.kernel.org/stable/c/c2cdef41e0b4d8ed23a5b41e6ad4e64594e055e4>

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-2026-98565>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98565/>. Everything for agents: <https://agentprime.io/llms.txt>.