# bpf: Fix NULL-ptr-deref when showing a void BTF type

CVE record · `CVE-2026-98064`

- **Identifiers:** `CVE-2026-98064`
- **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, 10:24 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: `c4d0bfb45068d853a478b9067a95969b1886a30f to before cf528f2d7a0a54f2a3c6d439cfa3c8d7dfe90d8d` (git)
  - affected: `c4d0bfb45068d853a478b9067a95969b1886a30f to before adb15557a641cb8a31f83e5f62bd12042b138c7b` (git)
  - affected: `c4d0bfb45068d853a478b9067a95969b1886a30f to before 62b00074b58ccf43f61f70f2cfcac80937b530c6` (git)
  - affected: `c4d0bfb45068d853a478b9067a95969b1886a30f to before 86d86f9fcf62dd3654090fbf3cf7ae5f42aa0706` (git)
  - affected: `c4d0bfb45068d853a478b9067a95969b1886a30f to before 717abdfd1d559d01fdd102023f0a990fb0437240` (git)
  - affected: `c4d0bfb45068d853a478b9067a95969b1886a30f to before 98f1cb95221332139acf514350ae2cae3b8656c5` (git)
  - affected: `c4d0bfb45068d853a478b9067a95969b1886a30f to before 5324f4e75ff6e9c2ca2e267c5f34f0937f9d0ac9` (git)
  - affected: `c4d0bfb45068d853a478b9067a95969b1886a30f to before 4ea508b9ebd78bce7f212166d2e2cba66b875f08` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.10`
  - unaffected: `before 5.10` (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: `7.2.7 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:** 0.0018, the 7th 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-2026-98064](https://www.cve.org/CVERecord?id=CVE-2026-98064)
- [NVD: CVE-2026-98064](https://nvd.nist.gov/vuln/detail/CVE-2026-98064)

### References from the CNA

- <https://git.kernel.org/stable/c/cf528f2d7a0a54f2a3c6d439cfa3c8d7dfe90d8d>
- <https://git.kernel.org/stable/c/adb15557a641cb8a31f83e5f62bd12042b138c7b>
- <https://git.kernel.org/stable/c/62b00074b58ccf43f61f70f2cfcac80937b530c6>
- <https://git.kernel.org/stable/c/86d86f9fcf62dd3654090fbf3cf7ae5f42aa0706>
- <https://git.kernel.org/stable/c/717abdfd1d559d01fdd102023f0a990fb0437240>
- <https://git.kernel.org/stable/c/98f1cb95221332139acf514350ae2cae3b8656c5>
- <https://git.kernel.org/stable/c/5324f4e75ff6e9c2ca2e267c5f34f0937f9d0ac9>
- <https://git.kernel.org/stable/c/4ea508b9ebd78bce7f212166d2e2cba66b875f08>

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-2026-98064>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98064/>. Everything for agents: <https://agentprime.io/llms.txt>.