# tcp: do not let tcp_rmem be set below 4096

CVE record · `CVE-2026-98299`

- **Identifiers:** `CVE-2026-98299`
- **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, 08:45 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: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 879907631b9e70eedb62d76461b29afa106ebe7a` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 8e32532d0fa3191ecf9524b0e6bafa0832e712ba` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 67b83c15bed9eeeb8d1a6dbf88a5f79525970173` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9a4f49bf8d2da4e52e904f60c29cca317bab9b3a` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 60df201dbb19a1bf6478b56d100f7ae1fe90e46a` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 7898bda1ebc198f5559b301a96dd5398edd4d4d3` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 1c4bb940c3bb4325bb88ac1b7eaf5faaa39e7d63` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 83a945a529d6e002dd7339c532288a931f463dba` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.12`
  - unaffected: `before 2.6.12` (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:** 0.0018, the 7th percentile, on 10 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-2026-98299](https://www.cve.org/CVERecord?id=CVE-2026-98299)
- [NVD: CVE-2026-98299](https://nvd.nist.gov/vuln/detail/CVE-2026-98299)

### References from the CNA

- <https://git.kernel.org/stable/c/879907631b9e70eedb62d76461b29afa106ebe7a>
- <https://git.kernel.org/stable/c/8e32532d0fa3191ecf9524b0e6bafa0832e712ba>
- <https://git.kernel.org/stable/c/67b83c15bed9eeeb8d1a6dbf88a5f79525970173>
- <https://git.kernel.org/stable/c/9a4f49bf8d2da4e52e904f60c29cca317bab9b3a>
- <https://git.kernel.org/stable/c/60df201dbb19a1bf6478b56d100f7ae1fe90e46a>
- <https://git.kernel.org/stable/c/7898bda1ebc198f5559b301a96dd5398edd4d4d3>
- <https://git.kernel.org/stable/c/1c4bb940c3bb4325bb88ac1b7eaf5faaa39e7d63>
- <https://git.kernel.org/stable/c/83a945a529d6e002dd7339c532288a931f463dba>

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-2026-98299>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98299/>. Everything for agents: <https://agentprime.io/llms.txt>.