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CVE-2022-50809 (GCVE-0-2022-50809)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:08 – Updated: 2026-05-23 15:25
VLAI
Title
xhci: dbc: Fix memory leak in xhci_alloc_dbc()
Summary
In the Linux kernel, the following vulnerability has been resolved: xhci: dbc: Fix memory leak in xhci_alloc_dbc() If DbC is already in use, then the allocated memory for the xhci_dbc struct doesn't get freed before returning NULL, which leads to a memleak.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d7afb4a13f6c6ee7df7d0bfc67b4ef19ece6d802 , < 103b459590e1eb4d80b02761eb36c7cae1d9b58e (git)
Affected: 534675942e901959b5d8dc11ea526c4e48817d8e , < 116d6a6964986ea7eb516daa36128d270f1f248d (git)
Affected: 534675942e901959b5d8dc11ea526c4e48817d8e , < 69e67c804d09a6b1bcda1f4f242f151f813eeb4a (git)
Affected: 534675942e901959b5d8dc11ea526c4e48817d8e , < d591b32e519603524a35b172156db71df9116902 (git)
Affected: 5.15.58 , < 5.15.75 (semver)
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Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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{
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              "operator": "OR"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: dbc: Fix memory leak in xhci_alloc_dbc()\n\nIf DbC is already in use, then the allocated memory for the xhci_dbc struct\ndoesn\u0027t get freed before returning NULL, which leads to a memleak."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:25:16.272Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/103b459590e1eb4d80b02761eb36c7cae1d9b58e"
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    "cveId": "CVE-2022-50809",
    "datePublished": "2025-12-30T12:08:27.242Z",
    "dateReserved": "2025-12-30T12:06:07.129Z",
    "dateUpdated": "2026-05-23T15:25:16.272Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-21T19:09:40+00:00",
      "cve": "CVE-2022-50809",
      "id": "CVE-2022-50809",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "124",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel xHCI DbC: Denial of Service via memory leak",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50809.json",
      "version": "3"
    }
  }
}



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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

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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.


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