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.
Published: 2026-03-25
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service via kernel crash
Action: Immediate Patch
AI Analysis

Impact

The Linux kernel contains a flaw where raw event callbacks for HID devices can dereference a NULL pointer if a device has not been claimed. The missing guard causes the kernel to crash, resulting in a denial‑of‑service condition. This is a classic null dereference issue classified as CWE‑414.

Affected Systems

All Linux kernel installations that have not incorporated commit 2ff5baa9b527 are affected. The issue was present in drivers such as appleir and other in‑tree HID drivers; any distribution using a kernel older than the supplied fix may be vulnerable.

Risk and Exploitability

The CVSS score of 5.5 reflects a moderate severity, while the EPSS score of less than 1% indicates a low probability of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog. Based on the description it is inferred that an attacker would need to present a malformed or unclaimed HID device to the system, potentially through local or remote attachment of such a device, to trigger the crash.

Generated by OpenCVE AI on March 26, 2026 at 14:38 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Linux kernel to a version that includes commit 2ff5baa9b527, which adds the missing HID_CLAIMED_INPUT guard to raw event callbacks.

Generated by OpenCVE AI on March 26, 2026 at 14:38 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 26 Mar 2026 12:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476

Thu, 26 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-414
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Wed, 25 Mar 2026 22:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476

Wed, 25 Mar 2026 10:45:00 +0000

Type Values Removed Values Added
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.
Title HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-03-25T16:49:16.018Z

Reserved: 2026-01-13T15:37:46.007Z

Link: CVE-2026-23382

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-25T11:16:38.330

Modified: 2026-03-25T15:41:33.977

Link: CVE-2026-23382

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-03-25T00:00:00Z

Links: CVE-2026-23382 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-03-27T09:48:58Z

Weaknesses