CVE-2026-72078

Received Received - Intake

USB Control Endpoint Validation Flaw in Linux Kernel

Publication date: 2026-08-15

Last updated on: 2026-08-17

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - validate control endpoint type The driver currently assumes that the first endpoint of the control interface is an interrupt IN endpoint without verifying it. A malicious device could provide a different endpoint type, which would then be passed to usb_fill_int_urb(), potentially leading to kernel warnings or undefined behavior. Verify that the control endpoint is an interrupt IN endpoint.

CVSS Scores

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Meta Information

Published

2026-08-15

Last Modified

2026-08-17

Generated

2026-09-04

AI Q&A

2026-08-15

EPSS Evaluated

2026-09-03

NVD

CVE-2026-72078

EUVD

EUVD-2026-59036

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is in the Linux kernel's ims-pcu driver. The driver assumes the first endpoint of the control interface is an interrupt IN endpoint without checking. A malicious device could provide a different endpoint type, which may lead to kernel warnings or undefined behavior when passed to usb_fill_int_urb().

Detection Guidance

This vulnerability is specific to the Linux kernel driver ims-pcu. Detection requires checking if the control endpoint of the device is incorrectly assumed to be an interrupt IN endpoint. Inspect kernel logs for warnings related to usb_fill_int_urb() or undefined behavior with USB endpoints. No direct commands are provided in the context.

Impact Analysis

This vulnerability could allow a malicious device to cause kernel warnings or undefined behavior, potentially leading to system instability or crashes. It may also enable unauthorized access or data corruption if exploited.

Compliance Impact

This vulnerability does not directly affect compliance with standards like GDPR or HIPAA as it pertains to a Linux kernel driver issue involving endpoint validation. The impact is limited to potential kernel warnings or undefined behavior due to improper endpoint handling in a malicious device scenario.

Mitigation Strategies

Apply the latest Linux kernel update that resolves this issue. If a patch is not available, avoid using the ims-pcu driver or unplug any potentially malicious USB devices. Monitor kernel logs for related errors.

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