CVE-2026-68088
Received Received - Intake

USB Gadget RNDIS Response Length Validation Flaw

Publication date: 2026-08-10

Last updated on: 2026-08-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: function: rndis: add length check to response query Add variable representations for BufLength and BufOffset in rndis_query_response(), and perform a length check on them. This is identical to how rndis_set_response() handles these parameters.

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Meta Information

Published
2026-08-10
Last Modified
2026-08-10
Generated
2026-08-10
AI Q&A
2026-08-10
EPSS Evaluated
N/A
NVD
CVE-2026-68088
EUVD
EUVD-2026-55269

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux_kernel linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves a missing length check in the RNDIS (Remote Network Driver Interface Specification) response query function. The issue occurs in the usb gadget function where BufLength and BufOffset variables are used without proper validation. This could allow an attacker to send malformed input that bypasses intended checks.

Detection Guidance

This vulnerability is in the Linux kernel's USB gadget function for RNDIS. Detection requires checking kernel versions and USB gadget configurations. Inspect kernel logs for USB gadget errors or crashes. Commands like dmesg | grep -i rndis or lsmod | grep rndis may help identify affected modules.

Impact Analysis

If exploited, this vulnerability could lead to buffer overflows, memory corruption, or denial of service in systems using the Linux kernel with RNDIS functionality. Attackers might gain unauthorized access, crash the system, or manipulate data by sending specially crafted network packets.

Compliance Impact

This vulnerability could impact compliance by exposing systems to unauthorized access or data breaches, violating confidentiality requirements in GDPR and HIPAA. Organizations may face penalties if systems handling sensitive data are compromised due to this flaw.

Mitigation Strategies

Update the Linux kernel to the latest patched version. Disable USB gadget functionality if not required. Monitor kernel logs for suspicious activity. Apply vendor patches promptly as they become available.

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