{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3dc8fc083dbfeede7b63a0c07581192e97711365"
            },
            {
              "fixed": "bed7fe3a936b6bdd84671385951397ca673cf6e7"
            },
            {
              "fixed": "aec2c2ec87d4ec1f098979f68cd81b29f031c8cb"
            },
            {
              "fixed": "634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996"
            },
            {
              "fixed": "abec577de5fc16cd5caae42f97cdcd0983c06d66"
            },
            {
              "fixed": "dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e"
            },
            {
              "fixed": "1fa1591efd417e39e5e164bebea8ca7a3837c469"
            },
            {
              "fixed": "e60159f5ea60254a5c3de4ea4f2f939f0171031b"
            },
            {
              "fixed": "e542edada3f79387c0ac2a528cebf01f4ef47df8"
            },
            {
              "fixed": "28abce951343fcec26e397610868efa4e1395c3f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.12.0"
            },
            {
              "fixed": "5.10.267"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.218"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.185"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.154"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.106"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.47"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.11"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "7.2.0"
            },
            {
              "fixed": "7.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80918.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: fix number/pointer type confusion on long items\n\nWhen fetch_item() is called by hid_scan_report() on an item with\nHID_ITEM_TAG_LONG, it stores a pointer to the item data in\nitem-\u003edata.longdata instead of storing a value directly in\nitem-\u003edata.{u8/u16/u32}.\n\nWhen item_udata() or item_sdata() encounters such an item, it incorrectly\nassumes that the item is in short format, and therefore returns the lower\npart of a kernel pointer reinterpreted as a number.\n\nWhen a HID device is connected whose descriptor contains a\nHID_GLOBAL_ITEM_TAG_REPORT_SIZE encoded in long format with size=4, this\ncauses the lower half of a kernel pointer to be printed into dmesg as a\nnumber, like this:\n\n    hid (null): invalid report_size 107953555\n\nTo fix it, let item_udata() and item_sdata() verify that the item is in\nshort format.\n\nNote that this bug only affects hid_scan_report(), while the main parsing\npass hid_parse_collections() will always bail out when encountering a long\nitem.\n\nSidenote: There are currently no users of data.longdata; maybe we should\njust remove any parsing of long-format descriptors as a follow-up.",
  "id": "CVE-2026-80918",
  "modified": "2026-09-10T03:31:04.423685304Z",
  "published": "2026-09-09T16:13:15.799Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1fa1591efd417e39e5e164bebea8ca7a3837c469"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28abce951343fcec26e397610868efa4e1395c3f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abec577de5fc16cd5caae42f97cdcd0983c06d66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aec2c2ec87d4ec1f098979f68cd81b29f031c8cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bed7fe3a936b6bdd84671385951397ca673cf6e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e542edada3f79387c0ac2a528cebf01f4ef47df8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e60159f5ea60254a5c3de4ea4f2f939f0171031b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80918.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80918"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "HID: core: fix number/pointer type confusion on long items"
}