# net: macb: fix NULL pointer dereference on unbind with fixed-link

CVE record · `CVE-2026-98008`

- **Identifiers:** `CVE-2026-98008`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:23 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: `831e19e565b5210930fa183730071f8290c61263 to before afa224cabc0132ca414b9141b1a919ca2d318cd0` (git)
  - affected: `81db1e52848694761a1aa162ce76198af9964ed8 to before 054ad8e66025eb4778d840bef80c270646cebcd2` (git)
  - affected: `d0c3601f2c4e12e7689b0f46ebc17525250ea8c3 to before f737d999fcb8f276d77b01ea4c2016ee01dad19b` (git)
  - affected: `d0c3601f2c4e12e7689b0f46ebc17525250ea8c3 to before 5710f6a74f63cbba0e15cd75917234916181c9d4` (git)
  - affected: `d0c3601f2c4e12e7689b0f46ebc17525250ea8c3 to before edb39c7666bb3924da761dfb417db85c1e5d8ad3` (git)
  - affected: `d0c3601f2c4e12e7689b0f46ebc17525250ea8c3 to before 38b6be101006d3e7af972999f45d4f1e8250587a` (git)
  - affected: `cafa5942bd2df3d80e3eeb2deb4bc050f7761f3d` (git)
  - affected: `c81dcaa9cd0b66816c2ecb6c5df0b6afde9c7da5` (git)
  - affected: `19088c5378c9fea54e552d8bc7418a3aa1e06990` (git)
  - affected: `6.1.114 to before 6.1.189` (semver)
  - affected: `6.6.58 to before 6.6.158` (semver)
  - affected: `5.10.228 to before 5.11` (semver)
  - and 2 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.12`
  - unaffected: `before 6.12` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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:** 0.0017, the 6th percentile, on 12 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98008](https://www.cve.org/CVERecord?id=CVE-2026-98008)
- [NVD: CVE-2026-98008](https://nvd.nist.gov/vuln/detail/CVE-2026-98008)

### References from the CNA

- <https://git.kernel.org/stable/c/afa224cabc0132ca414b9141b1a919ca2d318cd0>
- <https://git.kernel.org/stable/c/054ad8e66025eb4778d840bef80c270646cebcd2>
- <https://git.kernel.org/stable/c/f737d999fcb8f276d77b01ea4c2016ee01dad19b>
- <https://git.kernel.org/stable/c/5710f6a74f63cbba0e15cd75917234916181c9d4>
- <https://git.kernel.org/stable/c/edb39c7666bb3924da761dfb417db85c1e5d8ad3>
- <https://git.kernel.org/stable/c/38b6be101006d3e7af972999f45d4f1e8250587a>

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-2026-98008>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98008/>. Everything for agents: <https://agentprime.io/llms.txt>.