CVE-2026-23382 HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them
A missing check in Linux kernel HID drivers allows a malicious device to cause a null pointer dereference, leading to a system crash.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-23382?
CVE-2026-23382 is a medium-severity vulnerability in Linux kernel, published on 25 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them
In commit 2ff5baa9b527 ("HID: appleir: Fix potential NULL dereference at raw event handle"), we handle the fact that raw event callbacks can happen even for a HID device that has not been "claimed" causing a crash if a broken device were attempted to be connected to the system.
Fix up the remaining in-tree HID drivers that forgot to add this same check to resolve the same issue.
Weakness: CWE-476
Which versions are affected by CVE-2026-23382?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-23382?
Apply the vendor's patch.
Is CVE-2026-23382 being exploited?
There is no known exploitation of CVE-2026-23382 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-80561, BELL-CVE-2026-23382, DEBIAN-CVE-2026-23382, GHSA-22m9-9vqx-v8ww, ROOT-OS-DEBIAN-11-CVE-2026-23382, ROOT-OS-DEBIAN-12-CVE-2026-23382 and 4 more.