CVE-2026-90025

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Source
https://cve.org/CVERecord?id=CVE-2026-90025
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90025.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90025
Downstream
Published
2026-09-16T10:33:28Z
Modified
2026-09-18T03:48:35Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
usb: typec: ucsi: displayport: Fix OOB altmode array index
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90025.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
af8622f6a585d8d82b11cd7987e082861fd0edd3
Fixed
8fde7e4a366184e9a6aa95541e52933a73c00a74
Fixed
83f1abd62cc134700ba92e1e2dc650a49a185497
Fixed
1ffed96ef986e2cdf986aa4a4506a5e6dcdf4456
Fixed
58e0ee293ec5e06cacbe3953ad44042f1473dae9
Fixed
ac9f878c468052af6571e8639ab1c3ae040b908f
Fixed
33a81acd2d1d0667d4eff93cb90339fa53e617e8
Fixed
bdaaf3074aedce8f1b173cc363d61cff5f6a585f
Fixed
04cec690b1fd9d1c4c314b91a10d8c68a3acfe18

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90025.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.2.0
Fixed
5.10.270
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.221
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.188
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.157
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.110
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.51
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90025.json"