# CVE-2026-93199: linux: In the Linux kernel, the following vulnerability has been resolved:  i3c: master: Do not treat master device as a dup...

CVE-2026-93199 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-93199, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-93199
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  i3c: master: Do not treat master device as a duplicate target  i3c_master_search_i3c_dev_duplicate() searches the bus for another I3C device with the same PID as the reference device.  The search can match master->this, causing the controller itself to be returned as a duplicate.  Since the controller is not a target device, it cannot be a duplicate of one.  Exclude master->this from matching so that the function only returns real duplicate target devices.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.113-1 | [DEBIAN-CVE-2026-93199](https://patchblox.com/security/data/fix/linux/debian-cve-2026-93199.md) | Sep 23, 2026 |
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-93199](https://patchblox.com/security/data/fix/linux/debian-cve-2026-93199.md) | Sep 23, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.113-1~deb12u1 | [DEBIAN-CVE-2026-93199](https://patchblox.com/security/data/fix/linux/debian-cve-2026-93199.md) | Sep 23, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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