# NTB: ntb_transport: Fail TX enqueue when the QP link is down

CVE record · `CVE-2026-80988`

- **Identifiers:** `CVE-2026-80988`
- **State:** Confirmed
- **Severity:** No CVSS score
- **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: `3cfdc448e8bfa8a7eaa5af87f357330566124b78 to before 76c9ccc0c6bebfc74c0e727eda67687f5103ab06` (git)
  - affected: `bfa051f650a7708183bd86901ca4645dcf88c486 to before 96d792c65b9d5f7f9dd86a1004315db59e450c07` (git)
  - affected: `4f4af6b8b7a23fa37decaf43b55403e6bfd8e219 to before 45cc11035165918dd1f81796ea98f81ece20d361` (git)
  - affected: `f195a1a6fe416882984f8bd6c61afc1383171860 to before e6cc541fab01099fd8efadfa4f13afdf118bf536` (git)
  - affected: `f195a1a6fe416882984f8bd6c61afc1383171860 to before 5eca0d899a3be661a7e2caaaa7467a6fa15d756c` (git)
  - affected: `f195a1a6fe416882984f8bd6c61afc1383171860 to before 894e136b432da75c0352c80299807a5c4b04f167` (git)
  - affected: `f195a1a6fe416882984f8bd6c61afc1383171860 to before 89177732fe1653bbfef10cf5d99bf20cf57762c2` (git)
  - affected: `f195a1a6fe416882984f8bd6c61afc1383171860 to before 873ce713fef5dde0939220f04f3484ec86a16fba` (git)
  - affected: `aa6d6ed213b62cbdb09ea32abbfa085dd987a0c9` (git)
  - affected: `a8986a61ebee0b54c5d648444fbae09bd1c6dcd2` (git)
  - affected: `94491412a2afc8a5aea4c5b455aed86d3486f0b1` (git)
  - affected: `c2cd5d993f57f819d46fe62387d3cc34d8468e60` (git)
  - and 9 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.6`
  - unaffected: `before 6.6` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th 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-2026-80988](https://www.cve.org/CVERecord?id=CVE-2026-80988)
- [NVD: CVE-2026-80988](https://nvd.nist.gov/vuln/detail/CVE-2026-80988)

### References from the CNA

- <https://git.kernel.org/stable/c/76c9ccc0c6bebfc74c0e727eda67687f5103ab06>
- <https://git.kernel.org/stable/c/96d792c65b9d5f7f9dd86a1004315db59e450c07>
- <https://git.kernel.org/stable/c/45cc11035165918dd1f81796ea98f81ece20d361>
- <https://git.kernel.org/stable/c/e6cc541fab01099fd8efadfa4f13afdf118bf536>
- <https://git.kernel.org/stable/c/5eca0d899a3be661a7e2caaaa7467a6fa15d756c>
- <https://git.kernel.org/stable/c/894e136b432da75c0352c80299807a5c4b04f167>
- <https://git.kernel.org/stable/c/89177732fe1653bbfef10cf5d99bf20cf57762c2>
- <https://git.kernel.org/stable/c/873ce713fef5dde0939220f04f3484ec86a16fba>

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-2026-80988>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80988/>. Everything for agents: <https://agentprime.io/llms.txt>.