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CVE-2026-89627

Estado: RecibidaSin puntuar—

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

HID: roccat: free buffered reports when destroying device

roccat_report_event() duplicates each report with kmemdup() and stores the allocation in a circular-buffer slot. The allocation is released only when that slot is reused.

The device destruction paths free struct roccat_device without releasing reports still stored in cbuf[]. This makes those allocations unreachable and leaks up to ROCCAT_CBUF_SIZE report buffers per device.

Add a small destructor that frees every buffered report before freeing the device, and use it in both paths that can destroy a registered device.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-89627",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "lessThan": "cebb20b9a29cfc90bf56e54337333084f85a69dd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "lessThan": "690da9177e64bcfda2f4c0b5b8465178e4a236d8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "lessThan": "b3cc411daa50b39ba5706492a80a5a0804d9c85f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "lessThan": "4cb3ff31d237ad1f515455c497ef07d7172d912b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "lessThan": "943b8dc2c6044c01e36395f51bb809a4b6bdfd22",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "da00eac19feef209c9591e48c860afc2014603be",
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            },
            {
              "status": "affected",
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              "lessThan": "bbff0ccbff360a5498075525005f6a913239a3d7",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/hid/hid-roccat.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.35"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.35",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/hid/hid-roccat.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-11T20:19:48.153",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4cb3ff31d237ad1f515455c497ef07d7172d912b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/690da9177e64bcfda2f4c0b5b8465178e4a236d8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/943b8dc2c6044c01e36395f51bb809a4b6bdfd22",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b3cc411daa50b39ba5706492a80a5a0804d9c85f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bbff0ccbff360a5498075525005f6a913239a3d7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cebb20b9a29cfc90bf56e54337333084f85a69dd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/da00eac19feef209c9591e48c860afc2014603be",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fbb5a60f5c31b5625f0d89a79912fbcb2559289b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: roccat: free buffered reports when destroying device\n\nroccat_report_event() duplicates each report with kmemdup() and stores\nthe allocation in a circular-buffer slot. The allocation is released only\nwhen that slot is reused.\n\nThe device destruction paths free struct roccat_device without releasing\nreports still stored in cbuf[]. This makes those allocations unreachable\nand leaks up to ROCCAT_CBUF_SIZE report buffers per device.\n\nAdd a small destructor that frees every buffered report before freeing the\ndevice, and use it in both paths that can destroy a registered device."
    }
  ],
  "lastModified": "2026-09-14T13:19:16.377",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}