# bpf: Check params size before reading reserved fields

CVE record · `CVE-2026-98611`

- **Identifiers:** `CVE-2026-98611`
- **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, 15:19 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: `3e1c6f35409f9e447bf37f64840f5b65576bfb78 to before e03253f5d65ebcd2a6d479f140c3bd9c7e4fb84a` (git)
  - affected: `3e1c6f35409f9e447bf37f64840f5b65576bfb78 to before cd12d3e08620257fbcaa262785d7f4b9473afc7a` (git)
  - affected: `3e1c6f35409f9e447bf37f64840f5b65576bfb78 to before 86a0e945fb645ea90233fde239cd2de79f01974c` (git)
  - affected: `3e1c6f35409f9e447bf37f64840f5b65576bfb78 to before a11212910cf09b2fe8db9afa41ef60c4f81879c5` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (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:** 0.0017, the 6th 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-2026-98611](https://www.cve.org/CVERecord?id=CVE-2026-98611)
- [NVD: CVE-2026-98611](https://nvd.nist.gov/vuln/detail/CVE-2026-98611)

### References from the CNA

- <https://git.kernel.org/stable/c/e03253f5d65ebcd2a6d479f140c3bd9c7e4fb84a>
- <https://git.kernel.org/stable/c/cd12d3e08620257fbcaa262785d7f4b9473afc7a>
- <https://git.kernel.org/stable/c/86a0e945fb645ea90233fde239cd2de79f01974c>
- <https://git.kernel.org/stable/c/a11212910cf09b2fe8db9afa41ef60c4f81879c5>

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-2026-98611>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98611/>. Everything for agents: <https://agentprime.io/llms.txt>.