# bpf: Mark NULL kptr stores precise

CVE record · `CVE-2026-98034`

- **Identifiers:** `CVE-2026-98034`
- **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:** 21 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: `61df10c7799e27807ad5e459eec9d77cddf8bf45 to before 86a3171c90bfc35a54e9d83cd197ca0d72d2f4e4` (git)
  - affected: `61df10c7799e27807ad5e459eec9d77cddf8bf45 to before b8b98d3d37908402ff63515fa4d7574235436ea8` (git)
  - affected: `61df10c7799e27807ad5e459eec9d77cddf8bf45 to before bb667eb575c906f24c707986541a99424c5b07ea` (git)
  - affected: `61df10c7799e27807ad5e459eec9d77cddf8bf45 to before 86168208737bdd267d92d855d453d1d2f840df19` (git)
  - affected: `61df10c7799e27807ad5e459eec9d77cddf8bf45 to before ecdc5043794c9184aa8e6c814603899479c46b35` (git)
  - affected: `b5a8069835e5236824a84281592d29f859b33153` (git)
  - affected: `5.18.18 to before 5.19` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.19`
  - unaffected: `before 5.19` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 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:** 0.0020, the 10th 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-2026-98034](https://www.cve.org/CVERecord?id=CVE-2026-98034)
- [NVD: CVE-2026-98034](https://nvd.nist.gov/vuln/detail/CVE-2026-98034)

### References from the CNA

- <https://git.kernel.org/stable/c/86a3171c90bfc35a54e9d83cd197ca0d72d2f4e4>
- <https://git.kernel.org/stable/c/b8b98d3d37908402ff63515fa4d7574235436ea8>
- <https://git.kernel.org/stable/c/bb667eb575c906f24c707986541a99424c5b07ea>
- <https://git.kernel.org/stable/c/86168208737bdd267d92d855d453d1d2f840df19>
- <https://git.kernel.org/stable/c/ecdc5043794c9184aa8e6c814603899479c46b35>

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-2026-98034>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98034/>. Everything for agents: <https://agentprime.io/llms.txt>.