---
id: "CVE-2026-98663"
kind: "vulnerability"
aliases: ["CVE-2026-98663"]
title: "Linux kernel: adis16480 debugfs reads can race with driver unbind"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["embedded", "iio-driver", "infrastructure", "linux-kernel"]
not_affected_if: ["adis16480-not-present", "debugfs-not-mounted"]
published_at: "2026-10-18T16:17:19+00:00"
first_seen_at: "2026-10-23T21:57:16+00:00"
updated_at: "2026-10-25T05:19:29+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98663", "first_seen_at": "2026-10-23T21:57:16+00:00"}]
---

# Linux kernel: adis16480 debugfs reads can race with driver unbind

In the Linux IIO adis16480 IMU driver, the firmware_revision and firmware_date debugfs files are read without the protection debugfs requires, so a read in progress can run after the device is freed on unbind. The sources describe a use-after-free on the kernel side; they do not state what an attacker can gain from it.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- `uname -r` to see the running kernel version
- Check whether the adis16480 driver is loaded with `lsmod | grep adis16480`
- unknown for the patched kernel versions

## Fix

- Update to a Linux kernel release that includes the upstream commit fixing adis16480 debugfs reads (version unknown from the sources)
- Use the distribution's kernel update channel

## Timeline

- 2026-10-23T21:57:16+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-98663

## From the sources

In the Linux kernel, the following vulnerability has been resolved:

iio: imu: adis16480: fix unprotected debugfs reads

The firmware_revision and firmware_date file operations are open coded
and never call debugfs_file_get(), which debugfs_create_file_unsafe()
requires. debugfs_remove_recursive() therefore does not wait for a read
in progress, and unbind frees the iio_dev underneath it.

Use debugfs_create_file() instead.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_