{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2af16c1f846bd60240745bbd3afa13d5f040c61a"
            },
            {
              "fixed": "33ea29f8b6141f2d265de807e110a6435b355cb0"
            },
            {
              "fixed": "bd397c4123a4bc084913d8c7fdb40ef94e9f8172"
            },
            {
              "fixed": "addca61f9a23c0d20a387c2040e70479f54518e1"
            },
            {
              "fixed": "51cfd1adbe7a46bb08af162abb3ab3b6820e2d15"
            },
            {
              "fixed": "d4cabd4089adb59cf7974915737c52cc47a9bb1b"
            },
            {
              "fixed": "34725ed4719da424113db8449fb5485aaf71a913"
            },
            {
              "fixed": "27b376b945c0aac46fcdfcc950b14a85b874b557"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "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-2026-80772.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()\n\njoycon_ctlr_read_handler() casts an incoming HID input report to\nstruct joycon_input_report and parses it, guarding the cast only with a\n12-byte length check:\n\n\tif (size \u003e= 12) /* make sure it contains the input report */\n\t\tjoycon_parse_report(ctlr, (struct joycon_input_report *)data);\n\nstruct joycon_input_report is 49 bytes: a 13-byte header followed by a\nunion whose IMU arm is 36 bytes. For an IMU report joycon_parse_report()\n-\u003e joycon_parse_imu_report() walks that union (struct offsets 13..48),\nso a report of exactly 12 bytes with data[0] == JC_INPUT_IMU_DATA passes\nthe guard yet is read up to 37 bytes past its declared length. The\nover-read bytes are decoded into accelerometer/gyroscope values and\nforwarded to userspace through the \"(IMU)\" input device, leaking\ndriver-internal memory. data[0] and size are fully controlled by a\nmalicious or spoofed Joy-Con/Pro Controller.\n\nReceive buffers are sized to the maximum report length, so this is an\nover-read within the allocation rather than a slab OOB, but the decoded\nbytes still reach userspace.\n\nThe sibling subcmd path in joycon_ctlr_handle_event() already bounds the\nsame cast correctly:\n\n\tif (size \u003c sizeof(struct joycon_input_report) ||\n\t    data[0] != JC_INPUT_SUBCMD_REPLY)\n\t\tbreak;\n\nUse the same sizeof(struct joycon_input_report) bound here.",
  "id": "CVE-2026-80772",
  "modified": "2026-09-06T03:30:17.327678883Z",
  "published": "2026-09-04T15:12:44.445Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27b376b945c0aac46fcdfcc950b14a85b874b557"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/33ea29f8b6141f2d265de807e110a6435b355cb0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34725ed4719da424113db8449fb5485aaf71a913"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51cfd1adbe7a46bb08af162abb3ab3b6820e2d15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/addca61f9a23c0d20a387c2040e70479f54518e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd397c4123a4bc084913d8c7fdb40ef94e9f8172"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4cabd4089adb59cf7974915737c52cc47a9bb1b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80772.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80772"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "HID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()"
}