Vulnerability-Lookup

GHSA-RHHH-MWPC-M2QJ

Vulnerability from github – Published: 2026-02-14 18:30 – Updated: 2026-02-14 18:30

Details

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

HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()

i2c_hid_xfer is used to read recv_len + sizeof(__le16) bytes of data into ihid->rawbuf.

The former can come from the userspace in the hidraw driver and is only bounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set max_buffer_size field of struct hid_ll_driver which we do not).

The latter has size determined at runtime by the maximum size of different report types you could receive on any particular device and can be a much smaller value.

Fix this by truncating recv_len to ihid->bufsize - sizeof(__le16).

The impact is low since access to hidraw devices requires root.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23178"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T17:15:55Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()\n\n`i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data\ninto `ihid-\u003erawbuf`.\n\nThe former can come from the userspace in the hidraw driver and is only\nbounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set\n`max_buffer_size` field of `struct hid_ll_driver` which we do not).\n\nThe latter has size determined at runtime by the maximum size of\ndifferent report types you could receive on any particular device and\ncan be a much smaller value.\n\nFix this by truncating `recv_len` to `ihid-\u003ebufsize - sizeof(__le16)`.\n\nThe impact is low since access to hidraw devices requires root.",
  "id": "GHSA-rhhh-mwpc-m2qj",
  "modified": "2026-02-14T18:30:16Z",
  "published": "2026-02-14T18:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23178"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2124279f1f8c32c1646ce98e75a1a39b23b7db76"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2497ff38c530b1af0df5130ca9f5ab22c5e92f29"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/786ec171788bdf9dda38789163f1b1fbb47f2d1e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cff3f619fd1cb40cdd89971df9001f075613d219"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9c9ad89d845f88a1509e9d672f65d234425fde9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-23178 (GCVE-0-2026-23178)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-02-14 16:27

Title

HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report() `i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data into `ihid->rawbuf`. The former can come from the userspace in the hidraw driver and is only bounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set `max_buffer_size` field of `struct hid_ll_driver` which we do not). The latter has size determined at runtime by the maximum size of different report types you could receive on any particular device and can be a much smaller value. Fix this by truncating `recv_len` to `ihid->bufsize - sizeof(__le16)`. The impact is low since access to hidraw devices requires root.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f9c9ad89d845f88a1…
	https://git.kernel.org/stable/c/cff3f619fd1cb40cd…
	https://git.kernel.org/stable/c/786ec171788bdf9dd…
	https://git.kernel.org/stable/c/2124279f1f8c32c16…
	https://git.kernel.org/stable/c/2497ff38c530b1af0…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f9c9ad89d845f88a1509e9d672f65d234425fde9 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cff3f619fd1cb40cdd89971df9001f075613d219 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 786ec171788bdf9dda38789163f1b1fbb47f2d1e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2124279f1f8c32c1646ce98e75a1a39b23b7db76 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2497ff38c530b1af0df5130ca9f5ab22c5e92f29 (git)

Linux

Unaffected: 6.1.163 , ≤ 6.1.* (semver)
Unaffected: 6.6.124 , ≤ 6.6.* (semver)
Unaffected: 6.12.70 , ≤ 6.12.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/i2c-hid/i2c-hid-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f9c9ad89d845f88a1509e9d672f65d234425fde9",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "cff3f619fd1cb40cdd89971df9001f075613d219",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "786ec171788bdf9dda38789163f1b1fbb47f2d1e",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "2124279f1f8c32c1646ce98e75a1a39b23b7db76",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "2497ff38c530b1af0df5130ca9f5ab22c5e92f29",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/i2c-hid/i2c-hid-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.124",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.70",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.163",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.124",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.70",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()\n\n`i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data\ninto `ihid-\u003erawbuf`.\n\nThe former can come from the userspace in the hidraw driver and is only\nbounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set\n`max_buffer_size` field of `struct hid_ll_driver` which we do not).\n\nThe latter has size determined at runtime by the maximum size of\ndifferent report types you could receive on any particular device and\ncan be a much smaller value.\n\nFix this by truncating `recv_len` to `ihid-\u003ebufsize - sizeof(__le16)`.\n\nThe impact is low since access to hidraw devices requires root."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-14T16:27:10.108Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f9c9ad89d845f88a1509e9d672f65d234425fde9"
        },
        {
          "url": "https://git.kernel.org/stable/c/cff3f619fd1cb40cdd89971df9001f075613d219"
        },
        {
          "url": "https://git.kernel.org/stable/c/786ec171788bdf9dda38789163f1b1fbb47f2d1e"
        },
        {
          "url": "https://git.kernel.org/stable/c/2124279f1f8c32c1646ce98e75a1a39b23b7db76"
        },
        {
          "url": "https://git.kernel.org/stable/c/2497ff38c530b1af0df5130ca9f5ab22c5e92f29"
        }
      ],
      "title": "HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23178",
    "datePublished": "2026-02-14T16:27:10.108Z",
    "dateReserved": "2026-01-13T15:37:45.984Z",
    "dateUpdated": "2026-02-14T16:27:10.108Z",
    "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-RHHH-MWPC-M2QJ

CVE-2026-23178 (GCVE-0-2026-23178)

Tags

Sightings

Nomenclature