Vulnerability-Lookup

CVE-2026-80918 (GCVE-0-2026-80918)

Vulnerability from cvelistv5 – Published: 2026-09-09 16:13 – Updated: 2026-09-09 16:13

Title

HID: core: fix number/pointer type confusion on long items

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: core: fix number/pointer type confusion on long items When fetch_item() is called by hid_scan_report() on an item with HID_ITEM_TAG_LONG, it stores a pointer to the item data in item->data.longdata instead of storing a value directly in item->data.{u8/u16/u32}. When item_udata() or item_sdata() encounters such an item, it incorrectly assumes that the item is in short format, and therefore returns the lower part of a kernel pointer reinterpreted as a number. When a HID device is connected whose descriptor contains a HID_GLOBAL_ITEM_TAG_REPORT_SIZE encoded in long format with size=4, this causes the lower half of a kernel pointer to be printed into dmesg as a number, like this: hid (null): invalid report_size 107953555 To fix it, let item_udata() and item_sdata() verify that the item is in short format. Note that this bug only affects hid_scan_report(), while the main parsing pass hid_parse_collections() will always bail out when encountering a long item. Sidenote: There are currently no users of data.longdata; maybe we should just remove any parsing of long-format descriptors as a follow-up.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

9 references

URL	Tags
https://git.kernel.org/stable/c/bed7fe3a936b6bdd8…
https://git.kernel.org/stable/c/aec2c2ec87d4ec1f0…
https://git.kernel.org/stable/c/634f498ea5d5e8e01…
https://git.kernel.org/stable/c/abec577de5fc16cd5…
https://git.kernel.org/stable/c/dd8035dec26e98204…
https://git.kernel.org/stable/c/1fa1591efd417e39e…
https://git.kernel.org/stable/c/e60159f5ea60254a5…
https://git.kernel.org/stable/c/e542edada3f79387c…
https://git.kernel.org/stable/c/28abce951343fcec2…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < bed7fe3a936b6bdd84671385951397ca673cf6e7 (git) Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < aec2c2ec87d4ec1f098979f68cd81b29f031c8cb (git) Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < 634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996 (git) Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < abec577de5fc16cd5caae42f97cdcd0983c06d66 (git) Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e (git) Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < 1fa1591efd417e39e5e164bebea8ca7a3837c469 (git) Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < e60159f5ea60254a5c3de4ea4f2f939f0171031b (git) Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < e542edada3f79387c0ac2a528cebf01f4ef47df8 (git) Affected: 3dc8fc083dbfeede7b63a0c07581192e97711365 , < 28abce951343fcec26e397610868efa4e1395c3f (git)	guessed
Linux	Linux	Affected: 3.12 Unaffected: 0 , < 3.12 (semver) Unaffected: 5.10.267 , ≤ 5.10.* (semver) Unaffected: 5.15.218 , ≤ 5.15.* (semver) Unaffected: 6.1.185 , ≤ 6.1.* (semver) Unaffected: 6.6.154 , ≤ 6.6.* (semver) Unaffected: 6.12.106 , ≤ 6.12.* (semver) Unaffected: 6.18.47 , ≤ 6.18.* (semver) Unaffected: 7.1.11 , ≤ 7.1.* (semver) Unaffected: 7.2.1 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/hid-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bed7fe3a936b6bdd84671385951397ca673cf6e7",
              "status": "affected",
              "version": "3dc8fc083dbfeede7b63a0c07581192e97711365",
              "versionType": "git"
            },
            {
              "lessThan": "aec2c2ec87d4ec1f098979f68cd81b29f031c8cb",
              "status": "affected",
              "version": "3dc8fc083dbfeede7b63a0c07581192e97711365",
              "versionType": "git"
            },
            {
              "lessThan": "634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996",
              "status": "affected",
              "version": "3dc8fc083dbfeede7b63a0c07581192e97711365",
              "versionType": "git"
            },
            {
              "lessThan": "abec577de5fc16cd5caae42f97cdcd0983c06d66",
              "status": "affected",
              "version": "3dc8fc083dbfeede7b63a0c07581192e97711365",
              "versionType": "git"
            },
            {
              "lessThan": "dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e",
              "status": "affected",
              "version": "3dc8fc083dbfeede7b63a0c07581192e97711365",
              "versionType": "git"
            },
            {
              "lessThan": "1fa1591efd417e39e5e164bebea8ca7a3837c469",
              "status": "affected",
              "version": "3dc8fc083dbfeede7b63a0c07581192e97711365",
              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
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              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
            "drivers/hid/hid-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.12"
            },
            {
              "lessThan": "3.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.267",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.218",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.185",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.154",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.106",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.267",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.218",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.185",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.154",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.106",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.47",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.11",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.1",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-09T16:13:15.799Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bed7fe3a936b6bdd84671385951397ca673cf6e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/aec2c2ec87d4ec1f098979f68cd81b29f031c8cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996"
        },
        {
          "url": "https://git.kernel.org/stable/c/abec577de5fc16cd5caae42f97cdcd0983c06d66"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e"
        },
        {
          "url": "https://git.kernel.org/stable/c/1fa1591efd417e39e5e164bebea8ca7a3837c469"
        },
        {
          "url": "https://git.kernel.org/stable/c/e60159f5ea60254a5c3de4ea4f2f939f0171031b"
        },
        {
          "url": "https://git.kernel.org/stable/c/e542edada3f79387c0ac2a528cebf01f4ef47df8"
        },
        {
          "url": "https://git.kernel.org/stable/c/28abce951343fcec26e397610868efa4e1395c3f"
        }
      ],
      "title": "HID: core: fix number/pointer type confusion on long items",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80918",
    "datePublished": "2026-09-09T16:13:15.799Z",
    "dateReserved": "2026-08-26T14:34:25.801Z",
    "dateUpdated": "2026-09-09T16:13:15.799Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-80918\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-09-09T17:17:46.847\",\"lastModified\":\"2026-09-09T17:17:46.847\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/hid/hid-core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"bed7fe3a936b6bdd84671385951397ca673cf6e7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"aec2c2ec87d4ec1f098979f68cd81b29f031c8cb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"abec577de5fc16cd5caae42f97cdcd0983c06d66\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"1fa1591efd417e39e5e164bebea8ca7a3837c469\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"e60159f5ea60254a5c3de4ea4f2f939f0171031b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"e542edada3f79387c0ac2a528cebf01f4ef47df8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3dc8fc083dbfeede7b63a0c07581192e97711365\",\"lessThan\":\"28abce951343fcec26e397610868efa4e1395c3f\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/hid/hid-core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.267\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.218\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.185\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.154\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.106\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.47\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.11\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2.1\",\"lessThanOrEqual\":\"7.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.3-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1fa1591efd417e39e5e164bebea8ca7a3837c469\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/28abce951343fcec26e397610868efa4e1395c3f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/abec577de5fc16cd5caae42f97cdcd0983c06d66\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/aec2c2ec87d4ec1f098979f68cd81b29f031c8cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bed7fe3a936b6bdd84671385951397ca673cf6e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e542edada3f79387c0ac2a528cebf01f4ef47df8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e60159f5ea60254a5c3de4ea4f2f939f0171031b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}

FKIE_CVE-2026-80918

Vulnerability from fkie_nvd - Published: 2026-09-09 17:17 - Updated: 2026-09-09 17:17

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1fa1591efd417e39e5e164bebea8ca7a3837c469
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/28abce951343fcec26e397610868efa4e1395c3f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/abec577de5fc16cd5caae42f97cdcd0983c06d66
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aec2c2ec87d4ec1f098979f68cd81b29f031c8cb
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bed7fe3a936b6bdd84671385951397ca673cf6e7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e542edada3f79387c0ac2a528cebf01f4ef47df8
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e60159f5ea60254a5c3de4ea4f2f939f0171031b

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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        },
        {
          "defaultStatus": "affected",
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "3.12"
            },
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              "status": "unaffected",
              "version": "5.10.267",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "5.15.218",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.185",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.154",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.106",
              "versionType": "semver"
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            {
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              "status": "unaffected",
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              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "7.1.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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",
  "lastModified": "2026-09-09T17:17:46.847",
  "metrics": {},
  "published": "2026-09-09T17:17:46.847",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1fa1591efd417e39e5e164bebea8ca7a3837c469"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/28abce951343fcec26e397610868efa4e1395c3f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/abec577de5fc16cd5caae42f97cdcd0983c06d66"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aec2c2ec87d4ec1f098979f68cd81b29f031c8cb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bed7fe3a936b6bdd84671385951397ca673cf6e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e542edada3f79387c0ac2a528cebf01f4ef47df8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e60159f5ea60254a5c3de4ea4f2f939f0171031b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

GHSA-VPPQ-2M7C-F4XG

Vulnerability from github – Published: 2026-09-09 18:32 – Updated: 2026-09-09 18:32

Details

In the Linux kernel, the following vulnerability has been resolved:

HID: core: fix number/pointer type confusion on long items

When fetch_item() is called by hid_scan_report() on an item with HID_ITEM_TAG_LONG, it stores a pointer to the item data in item->data.longdata instead of storing a value directly in item->data.{u8/u16/u32}.

When item_udata() or item_sdata() encounters such an item, it incorrectly assumes that the item is in short format, and therefore returns the lower part of a kernel pointer reinterpreted as a number.

When a HID device is connected whose descriptor contains a HID_GLOBAL_ITEM_TAG_REPORT_SIZE encoded in long format with size=4, this causes the lower half of a kernel pointer to be printed into dmesg as a number, like this:

hid (null): invalid report_size 107953555

To fix it, let item_udata() and item_sdata() verify that the item is in short format.

Note that this bug only affects hid_scan_report(), while the main parsing pass hid_parse_collections() will always bail out when encountering a long item.

Sidenote: There are currently no users of data.longdata; maybe we should just remove any parsing of long-format descriptors as a follow-up.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-80918"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-09T17:17:46Z",
    "severity": null
  },
  "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": "GHSA-vppq-2m7c-f4xg",
  "modified": "2026-09-09T18:32:04Z",
  "published": "2026-09-09T18:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80918"
    },
    {
      "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-80918 (GCVE-0-2026-80918)

FKIE_CVE-2026-80918

GHSA-VPPQ-2M7C-F4XG

Tags

Sightings

Nomenclature