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

Vulnerability from cvelistv5 – Published: 2025-12-30 12:08 – Updated: 2025-12-30 12:08
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
Linux Linux Affected: d7afb4a13f6c6ee7df7d0bfc67b4ef19ece6d802 , < 103b459590e1eb4d80b02761eb36c7cae1d9b58e (git)
Affected: 534675942e901959b5d8dc11ea526c4e48817d8e , < 116d6a6964986ea7eb516daa36128d270f1f248d (git)
Affected: 534675942e901959b5d8dc11ea526c4e48817d8e , < 69e67c804d09a6b1bcda1f4f242f151f813eeb4a (git)
Affected: 534675942e901959b5d8dc11ea526c4e48817d8e , < d591b32e519603524a35b172156db71df9116902 (git)
Create a notification for this product.
    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)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/host/xhci-dbgcap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "103b459590e1eb4d80b02761eb36c7cae1d9b58e",
              "status": "affected",
              "version": "d7afb4a13f6c6ee7df7d0bfc67b4ef19ece6d802",
              "versionType": "git"
            },
            {
              "lessThan": "116d6a6964986ea7eb516daa36128d270f1f248d",
              "status": "affected",
              "version": "534675942e901959b5d8dc11ea526c4e48817d8e",
              "versionType": "git"
            },
            {
              "lessThan": "69e67c804d09a6b1bcda1f4f242f151f813eeb4a",
              "status": "affected",
              "version": "534675942e901959b5d8dc11ea526c4e48817d8e",
              "versionType": "git"
            },
            {
              "lessThan": "d591b32e519603524a35b172156db71df9116902",
              "status": "affected",
              "version": "534675942e901959b5d8dc11ea526c4e48817d8e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/host/xhci-dbgcap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "versionStartIncluding": "5.15.58",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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": "2025-12-30T12:08:27.242Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/103b459590e1eb4d80b02761eb36c7cae1d9b58e"
        },
        {
          "url": "https://git.kernel.org/stable/c/116d6a6964986ea7eb516daa36128d270f1f248d"
        },
        {
          "url": "https://git.kernel.org/stable/c/69e67c804d09a6b1bcda1f4f242f151f813eeb4a"
        },
        {
          "url": "https://git.kernel.org/stable/c/d591b32e519603524a35b172156db71df9116902"
        }
      ],
      "title": "xhci: dbc: Fix memory leak in xhci_alloc_dbc()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50809",
    "datePublished": "2025-12-30T12:08:27.242Z",
    "dateReserved": "2025-12-30T12:06:07.129Z",
    "dateUpdated": "2025-12-30T12:08:27.242Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50809\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-30T13:15:55.027\",\"lastModified\":\"2025-12-31T20:43:05.160\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/103b459590e1eb4d80b02761eb36c7cae1d9b58e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/116d6a6964986ea7eb516daa36128d270f1f248d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/69e67c804d09a6b1bcda1f4f242f151f813eeb4a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d591b32e519603524a35b172156db71df9116902\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.