{"id":"CVE-2026-80918","title":"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 t…","summary":"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 t…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < bed7fe3a936b6bdd84671385951397ca673cf6e7","Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < aec2c2ec87d4ec1f098979f68cd81b29f031c8cb","Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < 634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996","Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < abec577de5fc16cd5caae42f97cdcd0983c06d66","Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e","Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < 1fa1591efd417e39e5e164bebea8ca7a3837c469","Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < e60159f5ea60254a5c3de4ea4f2f939f0171031b","Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < e542edada3f79387c0ac2a528cebf01f4ef47df8","Linux >= 3dc8fc083dbfeede7b63a0c07581192e97711365 < 28abce951343fcec26e397610868efa4e1395c3f","Linux 3.12"],"published":"2026-09-09","updated":"2026-09-09","sourceUpdated":"2026-09-09T17:17:46.847","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80918","references":[{"url":"https://git.kernel.org/stable/c/1fa1591efd417e39e5e164bebea8ca7a3837c469","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/28abce951343fcec26e397610868efa4e1395c3f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/abec577de5fc16cd5caae42f97cdcd0983c06d66","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/aec2c2ec87d4ec1f098979f68cd81b29f031c8cb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bed7fe3a936b6bdd84671385951397ca673cf6e7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e542edada3f79387c0ac2a528cebf01f4ef47df8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e60159f5ea60254a5c3de4ea4f2f939f0171031b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-14T13:08:14.761Z","epss":0.00182,"epssPercentile":0.07974,"slug":"CVE-2026-80918","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}