# bpf: mark a NULL call argument precise

CVE record · `CVE-2026-98019`

- **Identifiers:** `CVE-2026-98019`
- **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: `b5dc0163d8fd78e64a7e21f309cf932fda34353e to before febbb66e682d8328f7c5bcbdd5e4291abab2e858` (git)
  - affected: `b5dc0163d8fd78e64a7e21f309cf932fda34353e to before 627089c278df58749f25686c6a3caf7e181b5951` (git)
  - affected: `b5dc0163d8fd78e64a7e21f309cf932fda34353e to before b1fe6379e401b8ce0f561cb4d84af2b70b4343c3` (git)
  - affected: `b5dc0163d8fd78e64a7e21f309cf932fda34353e to before 69a9ad004ccf5d45e534c7d503f47f643abe64b7` (git)
  - affected: `b5dc0163d8fd78e64a7e21f309cf932fda34353e to before 1a3a10b030c96ea88868ccc060a16827c01eaa5a` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.3`
  - unaffected: `before 5.3` (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:** 0.0017, 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-2026-98019](https://www.cve.org/CVERecord?id=CVE-2026-98019)
- [NVD: CVE-2026-98019](https://nvd.nist.gov/vuln/detail/CVE-2026-98019)

### References from the CNA

- <https://git.kernel.org/stable/c/febbb66e682d8328f7c5bcbdd5e4291abab2e858>
- <https://git.kernel.org/stable/c/627089c278df58749f25686c6a3caf7e181b5951>
- <https://git.kernel.org/stable/c/b1fe6379e401b8ce0f561cb4d84af2b70b4343c3>
- <https://git.kernel.org/stable/c/69a9ad004ccf5d45e534c7d503f47f643abe64b7>
- <https://git.kernel.org/stable/c/1a3a10b030c96ea88868ccc060a16827c01eaa5a>

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-2026-98019>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98019/>. Everything for agents: <https://agentprime.io/llms.txt>.