# net/smc: fix use-after-free in smc_rx_pipe_buf_release()

CVE record · `CVE-2026-80982`

- **Identifiers:** `CVE-2026-80982`
- **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: `9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to before dadd97c8296b23aa816e91ed70041820ae087baa` (git)
  - affected: `9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to before df441f3efbb50eb0f120b8de4bf441c31fb0551d` (git)
  - affected: `9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to before 6a644a7340df978785f3109d1e0726a982ce2c6f` (git)
  - affected: `9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to before 0761e49aa78c2f1362511054c6e9670653858837` (git)
  - affected: `9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to before 0926f59ca0f94120895b92180c636a48d0ed3a6d` (git)
  - affected: `9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to before c924884743e948e25625b7fbf3ee2a9325a204a7` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.18`
  - unaffected: `before 4.18` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (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:** 0.0016, the 5th 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-2026-80982](https://www.cve.org/CVERecord?id=CVE-2026-80982)
- [NVD: CVE-2026-80982](https://nvd.nist.gov/vuln/detail/CVE-2026-80982)

### References from the CNA

- <https://git.kernel.org/stable/c/dadd97c8296b23aa816e91ed70041820ae087baa>
- <https://git.kernel.org/stable/c/df441f3efbb50eb0f120b8de4bf441c31fb0551d>
- <https://git.kernel.org/stable/c/6a644a7340df978785f3109d1e0726a982ce2c6f>
- <https://git.kernel.org/stable/c/0761e49aa78c2f1362511054c6e9670653858837>
- <https://git.kernel.org/stable/c/0926f59ca0f94120895b92180c636a48d0ed3a6d>
- <https://git.kernel.org/stable/c/c924884743e948e25625b7fbf3ee2a9325a204a7>

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-2026-80982>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80982/>. Everything for agents: <https://agentprime.io/llms.txt>.