CVE-2025-39808: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: HID: hid-ntrig: fix unable to handle page fault in ntrig_report_version() in ntrig_report_version(), hdev parameter passed from hid_probe(). sending descriptor to /dev/uhid can make hdev->dev.parent->parent to null if hdev->dev.parent->parent is null, usb_dev has invalid address(0xffffffffffffff58) that hid_to_usb_dev(hdev) returned when usb_rcvctrlpipe() use usb_dev,it trigger page fault error for address(0xffffffffffffff58) add null check logic to ntrig_report_version() before calling hid_to_usb_dev()

Affected products

• Debian Debian Linux: version 11.0 only
• Linux Linux Kernel: from 2.6.37, before 5.4.298 (fixed in 5.4.298); from 5.5, before 5.10.242 (fixed in 5.10.242); from 5.11, before 5.15.191 (fixed in 5.15.191); from 5.16, before 6.1.150 (fixed in 6.1.150); from 6.2, before 6.6.104 (fixed in 6.6.104); from 6.7, before 6.12.45 (fixed in 6.12.45); …

Published 2025-09-16. Last modified 2026-06-17.