# xfrm: fix compat ALLOCSPI request use-after-free

CVE record · `CVE-2026-98370`

- **Identifiers:** `CVE-2026-98370`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:46 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: `5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 to before 494f2bee9d8d0ebcfa249ac41bed7fed26d119b4` (git)
  - affected: `5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 to before 17893987e52918c23945c42e47e894a936305a25` (git)
  - affected: `5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 to before 42971ea17c7a8afc0bdd5ca40648bf4e5bb7b810` (git)
  - affected: `5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 to before 2b63341e2ebc9b6f73cbd9214dbe7d46dd98c718` (git)
  - affected: `5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 to before bb63ab52a18273ec68340ac49aebbaa7b514ccd5` (git)
  - affected: `5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 to before 248433942155b42a0ef04a5806c8aca024ea7c33` (git)
  - affected: `5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 to before e70f639aee2ff0def155c256cace9e0f81d998e2` (git)
  - affected: `5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 to before d1ebd9081879fd9ae9c8fb7e8928f19cc88ae320` (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: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 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:** 0.0016, the 5th percentile, on 8 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 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98370](https://www.cve.org/CVERecord?id=CVE-2026-98370)
- [NVD: CVE-2026-98370](https://nvd.nist.gov/vuln/detail/CVE-2026-98370)

### References from the CNA

- <https://git.kernel.org/stable/c/494f2bee9d8d0ebcfa249ac41bed7fed26d119b4>
- <https://git.kernel.org/stable/c/17893987e52918c23945c42e47e894a936305a25>
- <https://git.kernel.org/stable/c/42971ea17c7a8afc0bdd5ca40648bf4e5bb7b810>
- <https://git.kernel.org/stable/c/2b63341e2ebc9b6f73cbd9214dbe7d46dd98c718>
- <https://git.kernel.org/stable/c/bb63ab52a18273ec68340ac49aebbaa7b514ccd5>
- <https://git.kernel.org/stable/c/248433942155b42a0ef04a5806c8aca024ea7c33>
- <https://git.kernel.org/stable/c/e70f639aee2ff0def155c256cace9e0f81d998e2>
- <https://git.kernel.org/stable/c/d1ebd9081879fd9ae9c8fb7e8928f19cc88ae320>

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-2026-98370>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98370/>. Everything for agents: <https://agentprime.io/llms.txt>.