# net/smc: unregister the connection before draining the rx tasklet

CVE record · `CVE-2026-80979`

- **Identifiers:** `CVE-2026-80979`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:42 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: `21f6f41e82e59740e26e06e77bdf58dc7f6f08dd to before b6b6ac713ee82b340a8e3be30b101bd2840deec4` (git)
  - affected: `ae2be35cbed2c8385e890147ea321a3fcc3ca5fa to before b4d540ac95cd35c6ebab6afb7eae2bcac7b277a5` (git)
  - affected: `ae2be35cbed2c8385e890147ea321a3fcc3ca5fa to before 5bd8b764a610b6b6bc0c4d3d01652747f6e0b5c3` (git)
  - affected: `ae2be35cbed2c8385e890147ea321a3fcc3ca5fa to before b74d313567dfc1b7e56629ddbad04e728686f235` (git)
  - affected: `ae2be35cbed2c8385e890147ea321a3fcc3ca5fa to before 36cdf5d48ca191dcd71c28cadbe0981b1d25318d` (git)
  - affected: `6.6.66 to before 6.6.157` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0013, the 2nd percentile, on 14 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80979](https://www.cve.org/CVERecord?id=CVE-2026-80979)
- [NVD: CVE-2026-80979](https://nvd.nist.gov/vuln/detail/CVE-2026-80979)

### References from the CNA

- <https://git.kernel.org/stable/c/b6b6ac713ee82b340a8e3be30b101bd2840deec4>
- <https://git.kernel.org/stable/c/b4d540ac95cd35c6ebab6afb7eae2bcac7b277a5>
- <https://git.kernel.org/stable/c/5bd8b764a610b6b6bc0c4d3d01652747f6e0b5c3>
- <https://git.kernel.org/stable/c/b74d313567dfc1b7e56629ddbad04e728686f235>
- <https://git.kernel.org/stable/c/36cdf5d48ca191dcd71c28cadbe0981b1d25318d>

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-2026-80979>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80979/>. Everything for agents: <https://agentprime.io/llms.txt>.