{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f1a9a149abc86903e81dd1b2e720f3f89874384b"
            },
            {
              "fixed": "c3597923932bb90d4fc2186aef552f6677175e4a"
            },
            {
              "fixed": "e0c224c93d10ee38854fdf24c815108aedd3dcb3"
            },
            {
              "fixed": "403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14"
            },
            {
              "fixed": "3d7a7bac4c75f25b2513505a0ac5ba909588ed2b"
            },
            {
              "fixed": "9bdf8c7bfd79f1090e61d28f969b32880fd77bb3"
            },
            {
              "fixed": "15b60ade825c8ce9ec560048a4ae3747e4572be3"
            },
            {
              "fixed": "0bf253e9ac994cb5329bc87b00bb4eeca9136791"
            },
            {
              "fixed": "2ef16934e069d5f771e989d6ee5c3ece5042f3cd"
            },
            {
              "fixed": "0af3b89705688af01aa06025b84fa7a1e06ba6cc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0e55072e7c63a6569cab1447e9025d160abd9dd9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "3.8.7"
            },
            {
              "fixed": "3.9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.9.0"
            },
            {
              "fixed": "5.10.269"
            }
          ],
          "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-2026-80782.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: do not keep a stale msc-\u003einput if no input is claimed\n\nmagicmouse_input_mapping() caches the first hid_input's input_dev in\nmsc-\u003einput while the report descriptor is parsed, and the rest of the\ndriver treats a non-NULL msc-\u003einput as proof that an input device was\nregistered.\n\nThat does not hold on the hid-input error path. If hidinput_connect()\nfails -- for instance because input_register_device() returns an error --\nit unwinds through hidinput_disconnect(), which frees every input_dev it\ncreated, including the one cached in msc-\u003einput.\n\nThe failure does not abort the probe. hid_connect() only skips the claim:\n\n\tif ((connect_mask \u0026 HID_CONNECT_HIDINPUT) \u0026\u0026 !hidinput_connect(hdev,\n\t\t\t\tconnect_mask \u0026 HID_CONNECT_HIDINPUT_FORCE))\n\t\thdev-\u003eclaimed |= HID_CLAIMED_INPUT;\n\nand the \"device has no listeners\" bailout below it does not fire for this\ndriver, which sets -\u003eraw_event; on the USB Magic Mouse 2 / Magic Trackpad\n2 paths hidraw and hiddev are claimed as well. hid_hw_start() therefore\nreturns 0 and magicmouse_probe() continues with msc-\u003einput pointing at\nfreed memory. Being non-NULL, it passes the \"input not registered\" check\nin probe and the NULL checks in -\u003eraw_event and -\u003eevent, so the next\ninput report dereferences freed memory.\n\nClear msc-\u003einput when the HID core did not claim an input device, so the\nexisting NULL checks cover this case as well.",
  "id": "CVE-2026-80782",
  "modified": "2026-09-06T03:31:05.005972156Z",
  "published": "2026-09-04T15:12:53.933Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0af3b89705688af01aa06025b84fa7a1e06ba6cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0bf253e9ac994cb5329bc87b00bb4eeca9136791"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15b60ade825c8ce9ec560048a4ae3747e4572be3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ef16934e069d5f771e989d6ee5c3ece5042f3cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d7a7bac4c75f25b2513505a0ac5ba909588ed2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bdf8c7bfd79f1090e61d28f969b32880fd77bb3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c3597923932bb90d4fc2186aef552f6677175e4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0c224c93d10ee38854fdf24c815108aedd3dcb3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80782.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80782"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "HID: magicmouse: do not keep a stale msc-\u003einput if no input is claimed"
}