CVE-2026-89729

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature sensor_hub_get_feature() clamps its return value to the caller's buffer size, but the copy loop still copies field->report_size / 8 bytes for each report value. A malicious HID descriptor can advertise a large feature field size while an IIO caller supplies a small stack buffer, such as a single s32, causing an out-of-bounds write. HID core stores parsed report values in __s32 slots and clamps extracted values to 32 bits. Reject feature fields that require more than one slot per value, guard the total byte count calculation, and clamp each per-value copy to the remaining caller buffer.

Severity

HIGH

CVSS score

8.8 (v3.1)

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-09-11 20:20:03.240000

Last modified

2026-10-19 09:18:14.863000

View original CVE JSON

{
  "id": "CVE-2026-89729",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-11T20:20:03.240",
  "lastModified": "2026-10-19T09:18:14.863",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature\n\nsensor_hub_get_feature() clamps its return value to the caller's buffer\nsize, but the copy loop still copies field->report_size / 8 bytes for\neach report value. A malicious HID descriptor can advertise a large\nfeature field size while an IIO caller supplies a small stack buffer,\nsuch as a single s32, causing an out-of-bounds write.\n\nHID core stores parsed report values in __s32 slots and clamps extracted\nvalues to 32 bits. Reject feature fields that require more than one slot\nper value, guard the total byte count calculation, and clamp each\nper-value copy to the remaining caller buffer."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/hid/hid-sensor-hub.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5459ada2b3cd69e6bf1b0c034feb810975d0072b",
              "lessThan": "1c0463f0f028801a933f090cd2695f132635b374",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5459ada2b3cd69e6bf1b0c034feb810975d0072b",
              "lessThan": "4145aa149a32e4b35d5d47e380d0c6c438b4e6fe",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5459ada2b3cd69e6bf1b0c034feb810975d0072b",
              "lessThan": "8bf8aaf2f74de64f801eb30bc38927dba1f8e40a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5459ada2b3cd69e6bf1b0c034feb810975d0072b",
              "lessThan": "c5c60260a07e627084e792ea959ab468ccfa4d50",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5459ada2b3cd69e6bf1b0c034feb810975d0072b",
              "lessThan": "fa95b14198b6c8ea721b4784f466d3c2c2bac83a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5459ada2b3cd69e6bf1b0c034feb810975d0072b",
              "lessThan": "9f43499ce6458a572b781f6bb46c464ab59fa825",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5459ada2b3cd69e6bf1b0c034feb810975d0072b",
              "lessThan": "bc3d72c44bff17688dc5f3e5132a53b51dae0f04",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5459ada2b3cd69e6bf1b0c034feb810975d0072b",
              "lessThan": "c92693f3ed099401d0383ef35ca1fe1e6ba033de",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/hid/hid-sensor-hub.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4.9",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "4.9",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.10.270",
              "lessThanOrEqual": "5.10.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.221",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.188",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.157",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.109",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.50",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.4",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ]
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1c0463f0f028801a933f090cd2695f132635b374",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4145aa149a32e4b35d5d47e380d0c6c438b4e6fe",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9f43499ce6458a572b781f6bb46c464ab59fa825",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bc3d72c44bff17688dc5f3e5132a53b51dae0f04",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c5c60260a07e627084e792ea959ab468ccfa4d50",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c92693f3ed099401d0383ef35ca1fe1e6ba033de",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fa95b14198b6c8ea721b4784f466d3c2c2bac83a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}