CVE-2026-80596

/// Technical description

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

Input: ims-pcu - only expose sysfs attributes on control interface

When the driver was converted to use the driver core to instantiate device

attributes (via .dev_groups in the usb_driver structure), the attributes

started appearing on all interfaces bound to the driver. Since the ims-pcu

driver manually claims the secondary data interface during probe, the

driver core automatically creates the sysfs attributes for that interface

as well.

However, the driver only supports these attributes on the primary control

interface. Data interfaces lack the necessary descriptors and internal

state to handle these requests, and accessing them can lead to unexpected

behavior or crashes.

Fix this by updating the is_visible() callbacks for both the main and OFN

attribute groups to verify that the interface being accessed is indeed the

control interface.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References