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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-68366 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uvc: clamp SEND_RESPONSE length to the response buffer uvc_send_response() builds the UVC control response from a user-supplied struct uvc_request_data: req->length = min_t(unsigned int, uvc->event_length, data->length); ... memcpy(req->buf, data->data, req->length); req->length is clamped to uvc->event_length, which is taken from the host control request wLength (up to UVC_MAX_REQUEST_SIZE, 64), and to data->length, which comes from the UVCIOC_SEND_RESPONSE ioctl and is only checked for being negative. The source buffer data->data is only 60 bytes, so a response with uvc->event_length and data->length both greater than 60 makes memcpy() read past the end of data->data. Clamp req->length to sizeof(data->data) as well.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1f03658f3e9b2f8fd1d1003ba389a0390b49a350 kernel.org
https://git.kernel.org/stable/c/4e116372b7a4f87df0dc0ed4b0ab5b0bb0cc5796 kernel.org
https://git.kernel.org/stable/c/568e68d8f80395a64848aa2946af8ade72da0ffb kernel.org
https://git.kernel.org/stable/c/662f6c6c6ff8a6c508e1646c09cae74e28f3cca6 kernel.org
https://git.kernel.org/stable/c/82ec2c1e456b17451f0736c3983402642f961733 kernel.org
https://git.kernel.org/stable/c/b70dc75e85ba968b7b76eebfe5d63000080b875b kernel.org
https://git.kernel.org/stable/c/c8510fbbea09ef0170b56b14dc2b5890dc75be07 kernel.org
https://git.kernel.org/stable/c/eaf783c005299a702f2cc96b08cd21ede081f098 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-68366
NVD Published Date:
08/10/2026
NVD Last Modified:
08/19/2026
Source:
kernel.org