# net: restrict SO_RESERVE_MEM to TCP sockets and cap max value

CVE record · `CVE-2026-98801`

- **Identifiers:** `CVE-2026-98801`
- **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, 15:48 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: `2bb2f5fb21b0486ff69b7b4a1fe03a760527d133 to before 492e04f9a00f3cc88a1f6899417b10f3019a624e` (git)
  - affected: `2bb2f5fb21b0486ff69b7b4a1fe03a760527d133 to before 5069ce898148bd799395c5a464e006cbb840f188` (git)
  - affected: `2bb2f5fb21b0486ff69b7b4a1fe03a760527d133 to before a467b05b201b5c26be52ed3081992fa9c0387648` (git)
  - affected: `2bb2f5fb21b0486ff69b7b4a1fe03a760527d133 to before 37e02c42a00be692c06343e11779aadc45f45971` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.16`
  - unaffected: `before 5.16` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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 6 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-2026-98801](https://www.cve.org/CVERecord?id=CVE-2026-98801)
- [NVD: CVE-2026-98801](https://nvd.nist.gov/vuln/detail/CVE-2026-98801)

### References from the CNA

- <https://git.kernel.org/stable/c/492e04f9a00f3cc88a1f6899417b10f3019a624e>
- <https://git.kernel.org/stable/c/5069ce898148bd799395c5a464e006cbb840f188>
- <https://git.kernel.org/stable/c/a467b05b201b5c26be52ed3081992fa9c0387648>
- <https://git.kernel.org/stable/c/37e02c42a00be692c06343e11779aadc45f45971>

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-2026-98801>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98801/>. Everything for agents: <https://agentprime.io/llms.txt>.