CVE-2026-80918HID: core: fix number/pointer type confusion on long items
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 92% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 40 days later
· 40 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < bed7fe3a936b6bdd84671385951397ca673cf6e7
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < aec2c2ec87d4ec1f098979f68cd81b29f031c8cb
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < 634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < abec577de5fc16cd5caae42f97cdcd0983c06d66
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < 1fa1591efd417e39e5e164bebea8ca7a3837c469
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < e60159f5ea60254a5c3de4ea4f2f939f0171031b
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < e542edada3f79387c0ac2a528cebf01f4ef47df8
- affected 3dc8fc083dbfeede7b63a0c07581192e97711365 – < 28abce951343fcec26e397610868efa4e1395c3f
- affected 3.12
- unaffected < 3.12
- unaffected 5.10.267 – ≤ 5.10.*
- unaffected 5.15.218 – ≤ 5.15.*
- unaffected 6.1.185 – ≤ 6.1.*
- unaffected 6.6.154 – ≤ 6.6.*
- unaffected 6.12.106 – ≤ 6.12.*
- unaffected 6.18.47 – ≤ 6.18.*
- unaffected 7.1.11 – ≤ 7.1.*
- unaffected 7.2.1 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References9
- https://git.kernel.org/stable/c/bed7fe3a936b6bdd84671385951397ca673cf6e7 (opens in a new tab)
- https://git.kernel.org/stable/c/aec2c2ec87d4ec1f098979f68cd81b29f031c8cb (opens in a new tab)
- https://git.kernel.org/stable/c/634f498ea5d5e8e01f8d9414d4f45eeaf9ee1996 (opens in a new tab)
- https://git.kernel.org/stable/c/abec577de5fc16cd5caae42f97cdcd0983c06d66 (opens in a new tab)
- https://git.kernel.org/stable/c/dd8035dec26e98204d6e4a6e0cee5c4d329b3d7e (opens in a new tab)
- https://git.kernel.org/stable/c/1fa1591efd417e39e5e164bebea8ca7a3837c469 (opens in a new tab)
- https://git.kernel.org/stable/c/e60159f5ea60254a5c3de4ea4f2f939f0171031b (opens in a new tab)
- https://git.kernel.org/stable/c/e542edada3f79387c0ac2a528cebf01f4ef47df8 (opens in a new tab)
- https://git.kernel.org/stable/c/28abce951343fcec26e397610868efa4e1395c3f (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-75093 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80918)Record last updated .