{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "1f08a90013e1e632b34321334e861fcefc056505"
            },
            {
              "fixed": "cc3832b19f863e3677c5651f001a2e3795f39eb8"
            },
            {
              "fixed": "d313683d6ccdd8c01e0562270a2ae25b86d8461d"
            },
            {
              "fixed": "d7d6a81b8dd1a8d084a1b755db9406041d53adb5"
            },
            {
              "fixed": "6348dfed5b0f9c6074f14322332e97493d32fef0"
            },
            {
              "fixed": "b83dcacd2ec7fcc5a48be215f82d573759f87ec2"
            },
            {
              "fixed": "2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "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/2026/63xxx/CVE-2026-63947.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: HIDP: fix missing length checks in hidp_input_report()\n\nhidp_input_report() reads keyboard and mouse payload data from an skb\nwithout first verifying that skb-\u003elen contains enough data.\n\nhidp_recv_intr_frame() pulls the 1-byte HIDP header before dispatching\nto hidp_input_report(). If a paired device sends a truncated packet,\nthe handler reads beyond the valid skb data, resulting in an\nout-of-bounds read of skb data. The OOB bytes may be interpreted as\nphantom key presses or spurious mouse movement.\n\nReplace the open-coded length tracking and pointer arithmetic with\nskb_pull_data() calls. skb_pull_data() returns NULL if the requested\nbytes are not present, eliminating the need for a manual size variable\nand the separate skb-\u003elen guard.",
  "id": "CVE-2026-63947",
  "modified": "2026-07-21T03:41:45.108116173Z",
  "published": "2026-07-19T14:55:41.306Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f08a90013e1e632b34321334e861fcefc056505"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6348dfed5b0f9c6074f14322332e97493d32fef0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b83dcacd2ec7fcc5a48be215f82d573759f87ec2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc3832b19f863e3677c5651f001a2e3795f39eb8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d313683d6ccdd8c01e0562270a2ae25b86d8461d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7d6a81b8dd1a8d084a1b755db9406041d53adb5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63947.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63947"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Bluetooth: HIDP: fix missing length checks in hidp_input_report()"
}