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VULNERABILITIES

CVE-2026-90025 Details

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.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.7 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/04cec690b1fd9d1c4c314b91a10d8c68a3acfe18 kernel.org
https://git.kernel.org/stable/c/1ffed96ef986e2cdf986aa4a4506a5e6dcdf4456 kernel.org
https://git.kernel.org/stable/c/33a81acd2d1d0667d4eff93cb90339fa53e617e8 kernel.org
https://git.kernel.org/stable/c/58e0ee293ec5e06cacbe3953ad44042f1473dae9 kernel.org
https://git.kernel.org/stable/c/83f1abd62cc134700ba92e1e2dc650a49a185497 kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-90025
NVD Published Date:
Sep 16, 2026
NVD Last Modified:
Sep 16, 2026
Source:
kernel.org