# iio: buffer: Make IIO DMA fence release RCU-safe

CVE record · `CVE-2026-89941`

- **Identifiers:** `CVE-2026-89941`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:32 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: `3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f to before 311595dc0b5621f74d8eb4dc38ef4efcdfe7e769` (git)
  - affected: `3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f to before 06a9460b8b792e109cbc934a856d02e5cff217ef` (git)
  - affected: `3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f to before 11cef99491117d4264603df159c4ff5f3845a059` (git)
  - affected: `3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f to before 8662e56c31cf23b61ca3d11b516efb94c35b8026` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.11`
  - unaffected: `before 6.11` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 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 15 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89941](https://www.cve.org/CVERecord?id=CVE-2026-89941)
- [NVD: CVE-2026-89941](https://nvd.nist.gov/vuln/detail/CVE-2026-89941)

### References from the CNA

- <https://git.kernel.org/stable/c/311595dc0b5621f74d8eb4dc38ef4efcdfe7e769>
- <https://git.kernel.org/stable/c/06a9460b8b792e109cbc934a856d02e5cff217ef>
- <https://git.kernel.org/stable/c/11cef99491117d4264603df159c4ff5f3845a059>
- <https://git.kernel.org/stable/c/8662e56c31cf23b61ca3d11b516efb94c35b8026>

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-2026-89941>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89941/>. Everything for agents: <https://agentprime.io/llms.txt>.