Vulnerability-Lookup

GHSA-V9HJ-CVCM-4MJ3

Vulnerability from github – Published: 2026-09-11 21:31 – Updated: 2026-09-14 15:32

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89627"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-11T20:19:48Z",
    "severity": null
  },
  "details": "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": "GHSA-v9hj-cvcm-4mj3",
  "modified": "2026-09-14T15:32:32Z",
  "published": "2026-09-11T21:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89627"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4cb3ff31d237ad1f515455c497ef07d7172d912b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/690da9177e64bcfda2f4c0b5b8465178e4a236d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/943b8dc2c6044c01e36395f51bb809a4b6bdfd22"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3cc411daa50b39ba5706492a80a5a0804d9c85f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbff0ccbff360a5498075525005f6a913239a3d7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cebb20b9a29cfc90bf56e54337333084f85a69dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da00eac19feef209c9591e48c860afc2014603be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fbb5a60f5c31b5625f0d89a79912fbcb2559289b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-89627 (GCVE-0-2026-89627)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:45 – Updated: 2026-09-14 12:01

Title

HID: roccat: free buffered reports when destroying device

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.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/cebb20b9a29cfc90b…
https://git.kernel.org/stable/c/690da9177e64bcfda…
https://git.kernel.org/stable/c/b3cc411daa50b39ba…
https://git.kernel.org/stable/c/4cb3ff31d237ad1f5…
https://git.kernel.org/stable/c/943b8dc2c6044c01e…
https://git.kernel.org/stable/c/da00eac19feef209c…
https://git.kernel.org/stable/c/fbb5a60f5c31b5625…
https://git.kernel.org/stable/c/bbff0ccbff360a549…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 , < cebb20b9a29cfc90bf56e54337333084f85a69dd (git) Affected: 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 , < 690da9177e64bcfda2f4c0b5b8465178e4a236d8 (git) Affected: 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 , < b3cc411daa50b39ba5706492a80a5a0804d9c85f (git) Affected: 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 , < 4cb3ff31d237ad1f515455c497ef07d7172d912b (git) Affected: 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 , < 943b8dc2c6044c01e36395f51bb809a4b6bdfd22 (git) Affected: 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 , < da00eac19feef209c9591e48c860afc2014603be (git) Affected: 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 , < fbb5a60f5c31b5625f0d89a79912fbcb2559289b (git) Affected: 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 , < bbff0ccbff360a5498075525005f6a913239a3d7 (git)
Linux	Linux	Affected: 2.6.35 Unaffected: 0 , < 2.6.35 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.109 , ≤ 6.12.* (semver) Unaffected: 6.18.50 , ≤ 6.18.* (semver) Unaffected: 7.2.4 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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