Vulnerability-Lookup

GHSA-WHG2-HQG5-6PH3

Vulnerability from github – Published: 2026-04-03 18:31 – Updated: 2026-04-03 18:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31401"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-03T16:16:39Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: prevent buffer overflow in hid_hw_request\n\nright now the returned value is considered to be always valid. However,\nwhen playing with HID-BPF, the return value can be arbitrary big,\nbecause it\u0027s the return value of dispatch_hid_bpf_raw_requests(), which\ncalls the struct_ops and we have no guarantees that the value makes\nsense.",
  "id": "GHSA-whg2-hqg5-6ph3",
  "modified": "2026-04-03T18:31:23Z",
  "published": "2026-04-03T18:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31401"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b658c1c442ec1cd9eec5ead98d68662c40fe645"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-04-03 15:16 – Updated: 2026-04-03 15:16

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 ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d6efaa50af62fb079…
	https://git.kernel.org/stable/c/73c5b5aea1c443239…
	https://git.kernel.org/stable/c/eb57dae20fdf6f306…
	https://git.kernel.org/stable/c/2b658c1c442ec1cd9…

Impacted products

Vendor

Product

Version

Linux

Affected: 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 , < d6efaa50af62fb0790dd1fd4e7e5506b46312510 (git)
Affected: 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 , < 73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1 (git)
Affected: 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 , < eb57dae20fdf6f3069cdc07821fa3bb46de381d7 (git)
Affected: 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 , < 2b658c1c442ec1cd9eec5ead98d68662c40fe645 (git)

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-rc5 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/bpf/hid_bpf_dispatch.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d6efaa50af62fb0790dd1fd4e7e5506b46312510",
              "status": "affected",
              "version": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
              "versionType": "git"
            },
            {
              "lessThan": "73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1",
              "status": "affected",
              "version": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
              "versionType": "git"
            },
            {
              "lessThan": "eb57dae20fdf6f3069cdc07821fa3bb46de381d7",
              "status": "affected",
              "version": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
              "versionType": "git"
            },
            {
              "lessThan": "2b658c1c442ec1cd9eec5ead98d68662c40fe645",
              "status": "affected",
              "version": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/bpf/hid_bpf_dispatch.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.78",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0-rc5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.78",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.20",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.11",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0-rc5",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: prevent buffer overflow in hid_hw_request\n\nright now the returned value is considered to be always valid. However,\nwhen playing with HID-BPF, the return value can be arbitrary big,\nbecause it\u0027s the return value of dispatch_hid_bpf_raw_requests(), which\ncalls the struct_ops and we have no guarantees that the value makes\nsense."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-03T15:16:04.903Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510"
        },
        {
          "url": "https://git.kernel.org/stable/c/73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7"
        },
        {
          "url": "https://git.kernel.org/stable/c/2b658c1c442ec1cd9eec5ead98d68662c40fe645"
        }
      ],
      "title": "HID: bpf: prevent buffer overflow in hid_hw_request",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31401",
    "datePublished": "2026-04-03T15:16:04.903Z",
    "dateReserved": "2026-03-09T15:48:24.086Z",
    "dateUpdated": "2026-04-03T15:16:04.903Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-WHG2-HQG5-6PH3

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

Tags

Sightings

Nomenclature