{"id":"CVE-2026-80918","revision":"d36e0551c5bd49a592484aa553ef4707","records":[{"revision":"d36e0551c5bd49a592484aa553ef4707","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80918","aliases":[],"title":"HID: core: fix number/pointer type confusion on long items","description":"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->data.longdata instead of storing a value directly in\nitem->data.{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.","state":0,"publishedAt":"2026-09-09T16:13:15.799+00:00","modifiedAt":"2026-10-19T08:45:02.656+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/hid/hid-core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"bed7fe3a936b6bdd84671385951397ca673cf6e7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"aec2c2ec87d4ec1f098979f68cd81b29f031c8cb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"abec577de5fc16cd5caae42f97cdcd0983c06d66\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"1fa1591efd417e39e5e164bebea8ca7a3837c469\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"e60159f5ea60254a5c3de4ea4f2f939f0171031b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"e542edada3f79387c0ac2a528cebf01f4ef47df8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3dc8fc083dbfeede7b63a0c07581192e97711365\",\n                            \"lessThan\": \"28abce951343fcec26e397610868efa4e1395c3f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/hid/hid-core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.12\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.267\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.218\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.185\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.154\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.106\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.47\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.11\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.1\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/bed7fe3a936b6bdd84671385951397ca673cf6e7","https://git.kernel.org/stable/c/aec2c2ec87d4ec1f098979f68cd81b29f031c8cb","https://git.kernel.org/stable/c/634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996","https://git.kernel.org/stable/c/abec577de5fc16cd5caae42f97cdcd0983c06d66","https://git.kernel.org/stable/c/dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e","https://git.kernel.org/stable/c/1fa1591efd417e39e5e164bebea8ca7a3837c469","https://git.kernel.org/stable/c/e60159f5ea60254a5c3de4ea4f2f939f0171031b","https://git.kernel.org/stable/c/e542edada3f79387c0ac2a528cebf01f4ef47df8","https://git.kernel.org/stable/c/28abce951343fcec26e397610868efa4e1395c3f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80918","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80918","identifiers":["CVE-2026-80918"]},"retained":false,"historicalAffected":[]}],"coverage":[]}