# bpf: NUL-terminate replaced sysctl value

CVE record · `CVE-2026-97420`

- **Identifiers:** `CVE-2026-97420`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 3 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:03 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: `32927393dc1ccd60fb2bdc05b9e8e88753761469 to before bfcee1f79aaefa90679ad47690107fb7682724ec` (git)
  - affected: `32927393dc1ccd60fb2bdc05b9e8e88753761469 to before c73e4a04eedc677fe91a736d7a5db45100adba5e` (git)
  - affected: `32927393dc1ccd60fb2bdc05b9e8e88753761469 to before 36d3e9f62dc2beb9299d3bb6f589cb9e07f773fe` (git)
  - affected: `32927393dc1ccd60fb2bdc05b9e8e88753761469 to before 31377675c3d75603d957c08e338a9ac27e9f6cd5` (git)
  - affected: `32927393dc1ccd60fb2bdc05b9e8e88753761469 to before 76c14b10f50eb0afcc76e244562fa2d8c661e224` (git)
  - affected: `32927393dc1ccd60fb2bdc05b9e8e88753761469 to before 3b2814dd842a565fcf9cc370156e1ba9eae16239` (git)
  - affected: `32927393dc1ccd60fb2bdc05b9e8e88753761469 to before a66e3b5bacf38d6ab29fa05a9754f7a114485605` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.8`
  - unaffected: `before 5.8` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (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 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-97420](https://www.cve.org/CVERecord?id=CVE-2026-97420)
- [NVD: CVE-2026-97420](https://nvd.nist.gov/vuln/detail/CVE-2026-97420)

### References from the CNA

- <https://git.kernel.org/stable/c/bfcee1f79aaefa90679ad47690107fb7682724ec>
- <https://git.kernel.org/stable/c/c73e4a04eedc677fe91a736d7a5db45100adba5e>
- <https://git.kernel.org/stable/c/36d3e9f62dc2beb9299d3bb6f589cb9e07f773fe>
- <https://git.kernel.org/stable/c/31377675c3d75603d957c08e338a9ac27e9f6cd5>
- <https://git.kernel.org/stable/c/76c14b10f50eb0afcc76e244562fa2d8c661e224>
- <https://git.kernel.org/stable/c/3b2814dd842a565fcf9cc370156e1ba9eae16239>
- <https://git.kernel.org/stable/c/a66e3b5bacf38d6ab29fa05a9754f7a114485605>

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-2026-97420>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97420/>. Everything for agents: <https://agentprime.io/llms.txt>.