# i3c: master: Do not treat master device as a duplicate target

CVE record · `CVE-2026-93199`

- **Identifiers:** `CVE-2026-93199`
- **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, 16:12 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: `3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 to before 3728d90ec66d4ad33d357e7d6e82b02d34e1c99c` (git)
  - affected: `3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 to before 6f2340857fc206e7ebfc50c568fb65c3055e568b` (git)
  - affected: `3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 to before d72a5e9060030a1c205b54157c15a428b741d83f` (git)
  - affected: `3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 to before 7b25b755d59077dd9484ba1360b8fe6396e5ccfb` (git)
  - affected: `3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 to before 533faf3d2e67ded0a62b7ba753c0fe993d1dfc26` (git)
  - affected: `3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 to before d0cc00957292e353ad46039034cd8f82fc4f8057` (git)
  - affected: `3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 to before 150e71808d3715a0deefbb189c780d03fdbdc735` (git)
  - affected: `3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 to before 4dc1b3eeba7991905a5b5b8129ebea51be7d87b7` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.0`
  - unaffected: `before 5.0` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 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.

> The Linux kernel from version 5.0 before the fixed releases can wrongly report the I3C controller itself as a duplicate target device during a search by device ID. The source gives no attacker requirements or impact. Upgrade to a fixed kernel release, such as 5.10.273, 5.15.224, 6.1.191, or 6.6.160 or later in those series.

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:** 0.0020, the 10th 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93199](https://www.cve.org/CVERecord?id=CVE-2026-93199)
- [NVD: CVE-2026-93199](https://nvd.nist.gov/vuln/detail/CVE-2026-93199)

### References from the CNA

- <https://git.kernel.org/stable/c/3728d90ec66d4ad33d357e7d6e82b02d34e1c99c>
- <https://git.kernel.org/stable/c/6f2340857fc206e7ebfc50c568fb65c3055e568b>
- <https://git.kernel.org/stable/c/d72a5e9060030a1c205b54157c15a428b741d83f>
- <https://git.kernel.org/stable/c/7b25b755d59077dd9484ba1360b8fe6396e5ccfb>
- <https://git.kernel.org/stable/c/533faf3d2e67ded0a62b7ba753c0fe993d1dfc26>
- <https://git.kernel.org/stable/c/d0cc00957292e353ad46039034cd8f82fc4f8057>
- <https://git.kernel.org/stable/c/150e71808d3715a0deefbb189c780d03fdbdc735>
- <https://git.kernel.org/stable/c/4dc1b3eeba7991905a5b5b8129ebea51be7d87b7>

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-2026-93199>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93199/>. Everything for agents: <https://agentprime.io/llms.txt>.