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

Vulnerability from cvelistv5 – Published: 2026-09-09 16:13 – Updated: 2026-09-09 16:13
VLAI
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
References
Impacted 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)
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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)
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          }
        ],
        "id": "CVE-2026-80918",
        "lastModified": "2026-09-09T17:17:46.847",
        "metrics": {},
        "published": "2026-09-09T17:17:46.847",
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        "vulnStatus": "Received"
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    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-10T16:27:31Z",
      "cve": "CVE-2026-80918",
      "id": "CVE-2026-80918",
      "initial_release_date": "2026-09-10T01:49:41Z",
      "product_status:known_affected": "265",
      "product_status:known_not_affected": "88",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80918",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80918.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.