{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a5eaaa1f33e771fa1651a4a7652b8a5f9fa7f6c1"
            },
            {
              "fixed": "eaf783c005299a702f2cc96b08cd21ede081f098"
            },
            {
              "fixed": "568e68d8f80395a64848aa2946af8ade72da0ffb"
            },
            {
              "fixed": "82ec2c1e456b17451f0736c3983402642f961733"
            },
            {
              "fixed": "4e116372b7a4f87df0dc0ed4b0ab5b0bb0cc5796"
            },
            {
              "fixed": "662f6c6c6ff8a6c508e1646c09cae74e28f3cca6"
            },
            {
              "fixed": "1f03658f3e9b2f8fd1d1003ba389a0390b49a350"
            },
            {
              "fixed": "c8510fbbea09ef0170b56b14dc2b5890dc75be07"
            },
            {
              "fixed": "b70dc75e85ba968b7b76eebfe5d63000080b875b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.10.0"
            },
            {
              "fixed": "5.10.265"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.216"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68366.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: clamp SEND_RESPONSE length to the response buffer\n\nuvc_send_response() builds the UVC control response from a user-supplied\nstruct uvc_request_data:\n\n\treq-\u003elength = min_t(unsigned int, uvc-\u003eevent_length, data-\u003elength);\n\t...\n\tmemcpy(req-\u003ebuf, data-\u003edata, req-\u003elength);\n\nreq-\u003elength is clamped to uvc-\u003eevent_length, which is taken from the\nhost control request wLength (up to UVC_MAX_REQUEST_SIZE, 64), and to\ndata-\u003elength, which comes from the UVCIOC_SEND_RESPONSE ioctl and is\nonly checked for being negative.  The source buffer data-\u003edata is only\n60 bytes, so a response with uvc-\u003eevent_length and data-\u003elength both\ngreater than 60 makes memcpy() read past the end of data-\u003edata.\n\nClamp req-\u003elength to sizeof(data-\u003edata) as well.",
  "id": "CVE-2026-68366",
  "modified": "2026-08-21T03:30:34.870107332Z",
  "published": "2026-08-10T12:03:43.304Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f03658f3e9b2f8fd1d1003ba389a0390b49a350"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e116372b7a4f87df0dc0ed4b0ab5b0bb0cc5796"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/568e68d8f80395a64848aa2946af8ade72da0ffb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/662f6c6c6ff8a6c508e1646c09cae74e28f3cca6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82ec2c1e456b17451f0736c3983402642f961733"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b70dc75e85ba968b7b76eebfe5d63000080b875b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c8510fbbea09ef0170b56b14dc2b5890dc75be07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eaf783c005299a702f2cc96b08cd21ede081f098"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68366.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68366"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "usb: gadget: uvc: clamp SEND_RESPONSE length to the response buffer"
}