GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

FKIE_CVE-2026-89627

Vulnerability from fkie_nvd - Published: 2026-09-11 20:19 - Updated: 2026-09-14 13:19
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4cb3ff31d237ad1f515455c497ef07d7172d912b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/690da9177e64bcfda2f4c0b5b8465178e4a236d8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/943b8dc2c6044c01e36395f51bb809a4b6bdfd22
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3cc411daa50b39ba5706492a80a5a0804d9c85f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bbff0ccbff360a5498075525005f6a913239a3d7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cebb20b9a29cfc90bf56e54337333084f85a69dd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da00eac19feef209c9591e48c860afc2014603be
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fbb5a60f5c31b5625f0d89a79912fbcb2559289b
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/hid-roccat.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cebb20b9a29cfc90bf56e54337333084f85a69dd",
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "versionType": "git"
            },
            {
              "lessThan": "690da9177e64bcfda2f4c0b5b8465178e4a236d8",
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "versionType": "git"
            },
            {
              "lessThan": "b3cc411daa50b39ba5706492a80a5a0804d9c85f",
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "versionType": "git"
            },
            {
              "lessThan": "4cb3ff31d237ad1f515455c497ef07d7172d912b",
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "versionType": "git"
            },
            {
              "lessThan": "943b8dc2c6044c01e36395f51bb809a4b6bdfd22",
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "versionType": "git"
            },
            {
              "lessThan": "da00eac19feef209c9591e48c860afc2014603be",
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "versionType": "git"
            },
            {
              "lessThan": "fbb5a60f5c31b5625f0d89a79912fbcb2559289b",
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "versionType": "git"
            },
            {
              "lessThan": "bbff0ccbff360a5498075525005f6a913239a3d7",
              "status": "affected",
              "version": "206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/hid-roccat.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.35"
            },
            {
              "lessThan": "2.6.35",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-89627",
  "lastModified": "2026-09-14T13:19:16.377",
  "metrics": {},
  "published": "2026-09-11T20:19:48.153",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.


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.