CVE-2026-31401 (GCVE-0-2026-31401)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:16 – Updated: 2026-08-05 12:22
VLAI
Title
HID: bpf: prevent buffer overflow in hid_hw_request
Summary
In the Linux kernel, the following vulnerability has been resolved: HID: bpf: prevent buffer overflow in hid_hw_request right now the returned value is considered to be always valid. However, when playing with HID-BPF, the return value can be arbitrary big, because it's the return value of dispatch_hid_bpf_raw_requests(), which calls the struct_ops and we have no guarantees that the value makes sense.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 , < d6efaa50af62fb0790dd1fd4e7e5506b46312510 (git)
Affected: 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 , < 73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1 (git)
Affected: 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 , < eb57dae20fdf6f3069cdc07821fa3bb46de381d7 (git)
Affected: 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 , < 2b658c1c442ec1cd9eec5ead98d68662c40fe645 (git)
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Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "cve": "CVE-2026-31401",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: HID: bpf: prevent buffer overflow in hid_hw_request",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31401.json",
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      "id": "CVE-2026-31401",
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      "product_status:recommended": "172",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-31401",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-31401.json",
      "version": "10"
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}



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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

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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.



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.