# iommu/arm-smmu-v3: Manage teardown with devm

CVE record · `CVE-2026-93205`

- **Identifiers:** `CVE-2026-93205`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 15:10 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: `395ad89d11fd93f79a6b942e91fc409807a63c4b to before 041b5e2a2a31c62049af30c5716099eebab86cb8` (git)
  - affected: `395ad89d11fd93f79a6b942e91fc409807a63c4b to before 64b1a9384db9cabf1bde378a2d5c1923fd67ea0d` (git)
  - affected: `395ad89d11fd93f79a6b942e91fc409807a63c4b to before 981686f4137760a16a03c5193f11d85133533f93` (git)
  - affected: `395ad89d11fd93f79a6b942e91fc409807a63c4b to before 2235eafda9b3df9295efd0593cd4a8977440c3f6` (git)
  - affected: `395ad89d11fd93f79a6b942e91fc409807a63c4b to before 78fd5a2d65f3546cb4285f8e52f445baecbd00e0` (git)
  - affected: `395ad89d11fd93f79a6b942e91fc409807a63c4b to before 2bd22a0d40503a65d243b011de146603c8ce1cbc` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.14`
  - unaffected: `before 5.14` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 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

## Machine-written summary

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

> The arm-smmu-v3 IOMMU driver in the Linux kernel from 5.14 up to the fixed commits frees resources in the wrong order on device removal, so an interrupt handler can use the IOPF queue after it is freed. The source gives few details on what an attacker needs or what they can do. Upgrade to 6.1.191, 6.6.160, 6.12.109, or 6.18.50, or later releases in those branches.

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:** 0.0017, the 6th percentile, on 13 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93205](https://www.cve.org/CVERecord?id=CVE-2026-93205)
- [NVD: CVE-2026-93205](https://nvd.nist.gov/vuln/detail/CVE-2026-93205)

### References from the CNA

- <https://git.kernel.org/stable/c/041b5e2a2a31c62049af30c5716099eebab86cb8>
- <https://git.kernel.org/stable/c/64b1a9384db9cabf1bde378a2d5c1923fd67ea0d>
- <https://git.kernel.org/stable/c/981686f4137760a16a03c5193f11d85133533f93>
- <https://git.kernel.org/stable/c/2235eafda9b3df9295efd0593cd4a8977440c3f6>
- <https://git.kernel.org/stable/c/78fd5a2d65f3546cb4285f8e52f445baecbd00e0>
- <https://git.kernel.org/stable/c/2bd22a0d40503a65d243b011de146603c8ce1cbc>

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-2026-93205>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93205/>. Everything for agents: <https://agentprime.io/llms.txt>.