# tcp: Don't call skb_clone_and_charge_r() for close()d listener in tcp_v6_do_rcv().

CVE record · `CVE-2026-98300`

- **Identifiers:** `CVE-2026-98300`
- **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: `e994b2f0fb9229aeff5eea9541320bd7b2ca8714 to before a23a3bc5004df6434de05797e0b6b2ecf864b86a` (git)
  - affected: `e994b2f0fb9229aeff5eea9541320bd7b2ca8714 to before 1cb7f292a337fdc72a8219bcd9d40a9cf5e86db5` (git)
  - affected: `e994b2f0fb9229aeff5eea9541320bd7b2ca8714 to before 7d94602e77a4525611afebb23149145ac242afd7` (git)
  - affected: `e994b2f0fb9229aeff5eea9541320bd7b2ca8714 to before b727e3d58cb906f1506c1334dfba71fbb1338339` (git)
  - affected: `e994b2f0fb9229aeff5eea9541320bd7b2ca8714 to before 3e3394a13b603cc79b6a35480b8e20df6c716944` (git)
  - affected: `e994b2f0fb9229aeff5eea9541320bd7b2ca8714 to before 619bfbaacbff6a9822923f69f6af29d7f66a870c` (git)
  - affected: `e994b2f0fb9229aeff5eea9541320bd7b2ca8714 to before 56d38839ef0bff6526d9bd73b6811bd00316b21c` (git)
  - affected: `e994b2f0fb9229aeff5eea9541320bd7b2ca8714 to before 8e759cd1f6444a946bd1fd2b2b29eea582eea1d5` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.4`
  - unaffected: `before 4.4` (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-2026-98300](https://www.cve.org/CVERecord?id=CVE-2026-98300)
- [NVD: CVE-2026-98300](https://nvd.nist.gov/vuln/detail/CVE-2026-98300)

### References from the CNA

- <https://git.kernel.org/stable/c/a23a3bc5004df6434de05797e0b6b2ecf864b86a>
- <https://git.kernel.org/stable/c/1cb7f292a337fdc72a8219bcd9d40a9cf5e86db5>
- <https://git.kernel.org/stable/c/7d94602e77a4525611afebb23149145ac242afd7>
- <https://git.kernel.org/stable/c/b727e3d58cb906f1506c1334dfba71fbb1338339>
- <https://git.kernel.org/stable/c/3e3394a13b603cc79b6a35480b8e20df6c716944>
- <https://git.kernel.org/stable/c/619bfbaacbff6a9822923f69f6af29d7f66a870c>
- <https://git.kernel.org/stable/c/56d38839ef0bff6526d9bd73b6811bd00316b21c>
- <https://git.kernel.org/stable/c/8e759cd1f6444a946bd1fd2b2b29eea582eea1d5>

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-2026-98300>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98300/>. Everything for agents: <https://agentprime.io/llms.txt>.