CVE-2026-90025
usb: typec: ucsi: displayport: Fix OOB altmode array index
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
af8622f6a585d8d82b11cd7987e082861fd0edd3 < 8fde7e4a366184e9a6aa95541e52933a73c00a74 af8622f6a585d8d82b11cd7987e082861fd0edd3 < 83f1abd62cc134700ba92e1e2dc650a49a185497 af8622f6a585d8d82b11cd7987e082861fd0edd3 < 1ffed96ef986e2cdf986aa4a4506a5e6dcdf4456 af8622f6a585d8d82b11cd7987e082861fd0edd3 < 58e0ee293ec5e06cacbe3953ad44042f1473dae9 af8622f6a585d8d82b11cd7987e082861fd0edd3 < ac9f878c468052af6571e8639ab1c3ae040b908f af8622f6a585d8d82b11cd7987e082861fd0edd3 < 33a81acd2d1d0667d4eff93cb90339fa53e617e8 af8622f6a585d8d82b11cd7987e082861fd0edd3 < bdaaf3074aedce8f1b173cc363d61cff5f6a585f af8622f6a585d8d82b11cd7987e082861fd0edd3 < 04cec690b1fd9d1c4c314b91a10d8c68a3acfe18
Linux / Linux
5.2
References
git.kernel.org: https://git.kernel.org/stable/c/8fde7e4a366184e9a6aa95541e52933a73c00a74 git.kernel.org: https://git.kernel.org/stable/c/83f1abd62cc134700ba92e1e2dc650a49a185497 git.kernel.org: https://git.kernel.org/stable/c/1ffed96ef986e2cdf986aa4a4506a5e6dcdf4456 git.kernel.org: https://git.kernel.org/stable/c/58e0ee293ec5e06cacbe3953ad44042f1473dae9 git.kernel.org: https://git.kernel.org/stable/c/ac9f878c468052af6571e8639ab1c3ae040b908f git.kernel.org: https://git.kernel.org/stable/c/33a81acd2d1d0667d4eff93cb90339fa53e617e8 git.kernel.org: https://git.kernel.org/stable/c/bdaaf3074aedce8f1b173cc363d61cff5f6a585f git.kernel.org: https://git.kernel.org/stable/c/04cec690b1fd9d1c4c314b91a10d8c68a3acfe18