CVE-2026-90025

HighCVSS 7.7/10Last modified Oct 19, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: ucsi: displayport: Fix OOB altmode array index

The UCSI displayport driver indexes the connector's port altmode array with the GET_CURRENT_CAM response after checking it is not 0xff. The port altmode array is UCSI_MAX_ALTMODES elements long. If the PPM returns an invalid GET_CURRENT_CAM response above UCSI_MAX_ALTMODES and not equal to 0xff, the kernel may crash with an array index OOB error.

Update the UCSI displayport driver to verify the current cam is less than UCSI_MAX_ALTMODES before accessing the port altmode array.

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
LinuxLinux>= af8622f6a585d8d82b11cd7987e082861fd0edd3, < 8fde7e4a366184e9a6aa95541e52933a73c00a74; >= af8622f6a585d8d82b11cd7987e082861fd0edd3, < 83f1abd62cc134700ba92e1e2dc650a49a185497; >= af8622f6a585d8d82b11cd7987e082861fd0edd3, < 1ffed96ef986e2cdf986aa4a4506a5e6dcdf4456; >= af8622f6a585d8d82b11cd7987e082861fd0edd3, < 58e0ee293ec5e06cacbe3953ad44042f1473dae9; >= af8622f6a585d8d82b11cd7987e082861fd0edd3, < ac9f878c468052af6571e8639ab1c3ae040b908f; >= af8622f6a585d8d82b11cd7987e082861fd0edd3, < 33a81acd2d1d0667d4eff93cb90339fa53e617e8; >= af8622f6a585d8d82b11cd7987e082861fd0edd3, < bdaaf3074aedce8f1b173cc363d61cff5f6a585f; >= af8622f6a585d8d82b11cd7987e082861fd0edd3, < 04cec690b1fd9d1c4c314b91a10d8c68a3acfe18
LinuxLinux5.2

References

Timeline

Published
Sep 16, 2026
Last modified
Oct 19, 2026
NVD status
Received

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CVE-2026-90025: High severity, CVSS 7.7 | Vulnix