# firmware: arm_scmi: Fix SCMI device destroy lifetimes

CVE record · `CVE-2026-93081`

- **Identifiers:** `CVE-2026-93081`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:11 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: `ff4273d47da81b95ed9396110bcbd1b7b7470fe8 to before afe5c022a180e0ade394d3fffbafc1a701f50993` (git)
  - affected: `2fbf6c9695ad9f05e7e5c166bf43fac7cb3276b3 to before d8ecdceeb90cd2c265b222a7b65487faf68fea73` (git)
  - affected: `969d8beaa2e374387bf9aa5602ef84fc50bb48d8 to before 916e27f71a80f6d77c48d1a1a5782d6d5ef9017c` (git)
  - affected: `9ca67840c0ddf3f39407339624cef824a4f27599 to before a60bc2df2d323cc1342f0cf95563cae266801e20` (git)
  - affected: `9ca67840c0ddf3f39407339624cef824a4f27599 to before c59b3393df1348a12308aaabd5fbc58ed6b21cf5` (git)
  - affected: `9ca67840c0ddf3f39407339624cef824a4f27599 to before 6abe8fe36b29ff51d1a42c2f338972883f4751a5` (git)
  - affected: `91ff1e9652fb9beb0174267d6bb38243dff211bb` (git)
  - affected: `8a8a3547d5c4960da053df49c75bf623827a25da` (git)
  - affected: `6.1.138 to before 6.1.191` (semver)
  - affected: `6.6.90 to before 6.6.160` (semver)
  - affected: `6.12.28 to before 6.12.114` (semver)
  - affected: `5.15.182 to before 5.16` (semver)
  - and 1 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.15`
  - unaffected: `before 6.15` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Linux kernel versions from 6.1.191 up to 6.1.\*, 6.6.160 up to 6.6.\*, 6.12.114 up to 6.12.\*, and 6.18.57 up to 6.18.\* are listed as unaffected, and the affected range is given as 6.15 onward, with several specific commit ranges also listed. An attacker with the ability to trigger SCMI child device unregistration concurrently with a destroy operation could cause a use-after-release of the device, though the source gives few details about the exact impact. Upgrade to a fixed kernel version from the stable branch for your release; the source does not state a workaround.

Written 12 Nov 2026.

## 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:** 0.0021, the 10th 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93081](https://www.cve.org/CVERecord?id=CVE-2026-93081)
- [NVD: CVE-2026-93081](https://nvd.nist.gov/vuln/detail/CVE-2026-93081)

### References from the CNA

- <https://git.kernel.org/stable/c/afe5c022a180e0ade394d3fffbafc1a701f50993>
- <https://git.kernel.org/stable/c/d8ecdceeb90cd2c265b222a7b65487faf68fea73>
- <https://git.kernel.org/stable/c/916e27f71a80f6d77c48d1a1a5782d6d5ef9017c>
- <https://git.kernel.org/stable/c/a60bc2df2d323cc1342f0cf95563cae266801e20>
- <https://git.kernel.org/stable/c/c59b3393df1348a12308aaabd5fbc58ed6b21cf5>
- <https://git.kernel.org/stable/c/6abe8fe36b29ff51d1a42c2f338972883f4751a5>

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-2026-93081>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93081/>. Everything for agents: <https://agentprime.io/llms.txt>.