{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5197424cdcccd2b0b1922babb93969b2515c43ce"
            },
            {
              "fixed": "45c829e5eb3b974282bae50b7cca2cc891f74f0b"
            },
            {
              "fixed": "e7cdcb266ba06d8480809b78ab8bb2bf8ff51ccb"
            },
            {
              "fixed": "95f47331dfde243f93e679ce70bd0c24b37c683d"
            },
            {
              "fixed": "d883312061ccde8c536595998aaf687ec070077c"
            },
            {
              "fixed": "103d2de9f505f56da173e43f12dba62f92620278"
            },
            {
              "fixed": "0ca809ea8e0355299266c46e5f1755040aa8dcf3"
            },
            {
              "fixed": "7585b6aa55d8ac85ad22f522e1059f93507727b6"
            },
            {
              "fixed": "2905281cbda52ec9df540113b35b835feb5fafd3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.34"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64014.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer size\n\nnexio_read_data() pulls data_len and x_len from a packed __be16 header\nin the device's interrupt packet and then walks packet-\u003edata[0..x_len)\nand packet-\u003edata[x_len..data_len) comparing each byte against a\nthreshold.\n\nBoth fields are 16-bit on the wire (max 65535).  The existing\nadjustments shave at most 0x100 / 0x80 off, so the loop bound can still\nreach roughly 0xfeff.  The URB transfer buffer for NEXIO is rept_size\n(1024) bytes from usb_alloc_coherent(), with the first 7 occupied by the\npacked header — so packet-\u003edata[] has 1017 valid bytes.  read_data()\ncallbacks are not given urb-\u003eactual_length, and nothing else bounds the\nwalk.\n\nA device that lies about its length can get a ~64 KiB out-of-bounds read\npast the coherent DMA allocation.  The first index whose byte exceeds\nNEXIO_THRESHOLD lands in begin_x / begin_y and from there into the\nreported touch coordinates, so adjacent kernel memory contents leak to\nuserspace as ABS_X / ABS_Y events.  Far enough out, the read can also\nhit an unmapped page and fault.\n\nFix this all by clamping data_len to the buffer's data[] capacity and\nx_len to data_len.",
  "id": "CVE-2026-64014",
  "modified": "2026-07-21T03:41:54.370576982Z",
  "published": "2026-07-19T14:56:27.995Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ca809ea8e0355299266c46e5f1755040aa8dcf3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/103d2de9f505f56da173e43f12dba62f92620278"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2905281cbda52ec9df540113b35b835feb5fafd3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45c829e5eb3b974282bae50b7cca2cc891f74f0b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7585b6aa55d8ac85ad22f522e1059f93507727b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95f47331dfde243f93e679ce70bd0c24b37c683d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d883312061ccde8c536595998aaf687ec070077c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7cdcb266ba06d8480809b78ab8bb2bf8ff51ccb"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64014.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64014"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "Input: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer size"
}