# RDMA/core: Prefer NLA_NUL_STRING

CVE record · `CVE-2026-63860`

- **Identifiers:** `CVE-2026-63860`
- **State:** Confirmed
- **Severity:** CVSS 8.4 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-170](https://cwe.mitre.org/data/definitions/170.html)
- **Tags:** [CWE-170](https://agentprime.io/advisories/tag/cwe-170.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 19 Jul 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 19 Jul 2026, 14:04 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: `30dc5e63d6a5ad24894b5512d10b228d73645a44 to before fcd07d3b8ee7a39b344d73aed69c1a68cd9eacdf` (git)
  - affected: `30dc5e63d6a5ad24894b5512d10b228d73645a44 to before 87111356d58d86edb221ba144d261ed83a5b8bbe` (git)
  - affected: `30dc5e63d6a5ad24894b5512d10b228d73645a44 to before abda65bdd13084c771842adaac1f652d0660dd82` (git)
  - affected: `30dc5e63d6a5ad24894b5512d10b228d73645a44 to before 137b5918931d4d05aa8ea8d3adf67f7224eef63c` (git)
  - affected: `30dc5e63d6a5ad24894b5512d10b228d73645a44 to before 5877c043398d5fa0e93919a3d837e5cd7a98a961` (git)
  - affected: `30dc5e63d6a5ad24894b5512d10b228d73645a44 to before f2c7b39dde2e61df8157066969cc2a408cd3dcd9` (git)
  - affected: `30dc5e63d6a5ad24894b5512d10b228d73645a44 to before c26a0052cceed4c4d380ee5808b699f937fb58d8` (git)
  - affected: `30dc5e63d6a5ad24894b5512d10b228d73645a44 to before 6ed3d14fc45d3da6025e7fe4a6a09066856698e2` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.16`
  - unaffected: `before 3.16` (semver)
  - unaffected: `5.10.258 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.209 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.175 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.141 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.91 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.33 to 6.18.*, inclusive` (semver)
  - unaffected: `7.0.10 to 7.0.*, inclusive` (semver)
  - unaffected: `7.1 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

- 8.4 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 5 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 19 Jul 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-63860](https://www.cve.org/CVERecord?id=CVE-2026-63860)
- [NVD: CVE-2026-63860](https://nvd.nist.gov/vuln/detail/CVE-2026-63860)

### References from the CNA

- <https://git.kernel.org/stable/c/fcd07d3b8ee7a39b344d73aed69c1a68cd9eacdf>
- <https://git.kernel.org/stable/c/87111356d58d86edb221ba144d261ed83a5b8bbe>
- <https://git.kernel.org/stable/c/abda65bdd13084c771842adaac1f652d0660dd82>
- <https://git.kernel.org/stable/c/137b5918931d4d05aa8ea8d3adf67f7224eef63c>
- <https://git.kernel.org/stable/c/5877c043398d5fa0e93919a3d837e5cd7a98a961>
- <https://git.kernel.org/stable/c/f2c7b39dde2e61df8157066969cc2a408cd3dcd9>
- <https://git.kernel.org/stable/c/c26a0052cceed4c4d380ee5808b699f937fb58d8>
- <https://git.kernel.org/stable/c/6ed3d14fc45d3da6025e7fe4a6a09066856698e2>

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-2026-63860>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-63860/>. Everything for agents: <https://agentprime.io/llms.txt>.