Vulnerability-Lookup

FKIE_CVE-2022-50355

Vulnerability from fkie_nvd - Published: 2025-09-17 15:15 - Updated: 2026-08-04 10:18

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: staging: vt6655: fix some erroneous memory clean-up loops In some initialization functions of this driver, memory is allocated with 'i' acting as an index variable and increasing from 0. The commit in "Fixes" introduces some clean-up codes in case of allocation failure, which free memory in reverse order with 'i' decreasing to 0. However, there are some problems: - The case i=0 is left out. Thus memory is leaked. - In case memory allocation fails right from the start, the memory freeing loops will start with i=-1 and invalid memory locations will be accessed. One of these loops has been fixed in commit c8ff91535880 ("staging: vt6655: fix potential memory leak"). Fix the remaining erroneous loops.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2a2db520e3ca5aafba7c211abfd397666c9b5f9d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/637672a71f5016a40b0a6c0f3c8ad25eacedc8c3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/95ac62e8545be2b0a8cae0beef7c682e2e470e48	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a9e9806d1c315bc50dce05479a079b9a104474b8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ed11b73c963292e7b49c0f37025c58ed3b7921d6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f19e5b7df54590c831f350381963f25585c8f7d5	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/vt6655/device_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "637672a71f5016a40b0a6c0f3c8ad25eacedc8c3",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "95ac62e8545be2b0a8cae0beef7c682e2e470e48",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "f19e5b7df54590c831f350381963f25585c8f7d5",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "a9e9806d1c315bc50dce05479a079b9a104474b8",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "ed11b73c963292e7b49c0f37025c58ed3b7921d6",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "2a2db520e3ca5aafba7c211abfd397666c9b5f9d",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/vt6655/device_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "lessThan": "4.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.262",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.220",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.150",
              "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2F40133E-F55D-4416-A957-900509BE4775",
              "versionEndExcluding": "4.19.262",
              "versionStartIncluding": "4.18",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "125F7133-B3B7-4175-8CF3-FF0845483254",
              "versionEndExcluding": "5.4.220",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C495821C-2A71-4F09-BED8-6A6EB4C9BA27",
              "versionEndExcluding": "5.10.150",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6D945F46-F32F-4C09-8400-C3477E22A9FB",
              "versionEndExcluding": "5.15.75",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "19B4C3A4-E5C3-41DC-BB14-BE72858E7D35",
              "versionEndExcluding": "5.19.17",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5BCD8201-B847-4442-B894-70D430128DEF",
              "versionEndExcluding": "6.0.3",
              "versionStartIncluding": "6.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: vt6655: fix some erroneous memory clean-up loops\n\nIn some initialization functions of this driver, memory is allocated with\n\u0027i\u0027 acting as an index variable and increasing from 0. The commit in\n\"Fixes\" introduces some clean-up codes in case of allocation failure,\nwhich free memory in reverse order with \u0027i\u0027 decreasing to 0. However,\nthere are some problems:\n  - The case i=0 is left out. Thus memory is leaked.\n  - In case memory allocation fails right from the start, the memory\n    freeing loops will start with i=-1 and invalid memory locations will\n    be accessed.\n\nOne of these loops has been fixed in commit c8ff91535880 (\"staging:\nvt6655: fix potential memory leak\"). Fix the remaining erroneous loops."
    }
  ],
  "id": "CVE-2022-50355",
  "lastModified": "2026-08-04T10:18:12.540",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-50355",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-14T18:31:51.758929Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-17T15:15:34.150",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2a2db520e3ca5aafba7c211abfd397666c9b5f9d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/637672a71f5016a40b0a6c0f3c8ad25eacedc8c3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/95ac62e8545be2b0a8cae0beef7c682e2e470e48"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a9e9806d1c315bc50dce05479a079b9a104474b8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ed11b73c963292e7b49c0f37025c58ed3b7921d6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f19e5b7df54590c831f350381963f25585c8f7d5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

CVE-2022-50355 (GCVE-0-2022-50355)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-08-05 08:58

Title

staging: vt6655: fix some erroneous memory clean-up loops

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-14 18:31 UTC

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/637672a71f5016a40…
https://git.kernel.org/stable/c/88b9cc60f26e8a05d…
https://git.kernel.org/stable/c/95ac62e8545be2b0a…
https://git.kernel.org/stable/c/f19e5b7df54590c83…
https://git.kernel.org/stable/c/a9e9806d1c315bc50…
https://git.kernel.org/stable/c/ed11b73c963292e7b…
https://git.kernel.org/stable/c/2a2db520e3ca5aafb…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5341ee0adb17d12a96dc5344e0d267cd12b52135 , < 637672a71f5016a40b0a6c0f3c8ad25eacedc8c3 (git) Affected: 5341ee0adb17d12a96dc5344e0d267cd12b52135 , < 88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0 (git) Affected: 5341ee0adb17d12a96dc5344e0d267cd12b52135 , < 95ac62e8545be2b0a8cae0beef7c682e2e470e48 (git) Affected: 5341ee0adb17d12a96dc5344e0d267cd12b52135 , < f19e5b7df54590c831f350381963f25585c8f7d5 (git) Affected: 5341ee0adb17d12a96dc5344e0d267cd12b52135 , < a9e9806d1c315bc50dce05479a079b9a104474b8 (git) Affected: 5341ee0adb17d12a96dc5344e0d267cd12b52135 , < ed11b73c963292e7b49c0f37025c58ed3b7921d6 (git) Affected: 5341ee0adb17d12a96dc5344e0d267cd12b52135 , < 2a2db520e3ca5aafba7c211abfd397666c9b5f9d (git)
Linux	Linux	Affected: 4.18 Unaffected: 0 , < 4.18 (semver) Unaffected: 4.19.262 , ≤ 4.19.* (semver) Unaffected: 5.4.220 , ≤ 5.4.* (semver) Unaffected: 5.10.150 , ≤ 5.10.* (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)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-50355",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:31:51.758929Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-401",
                "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T18:33:00.943Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/vt6655/device_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "637672a71f5016a40b0a6c0f3c8ad25eacedc8c3",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "95ac62e8545be2b0a8cae0beef7c682e2e470e48",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "f19e5b7df54590c831f350381963f25585c8f7d5",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "a9e9806d1c315bc50dce05479a079b9a104474b8",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "ed11b73c963292e7b49c0f37025c58ed3b7921d6",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            },
            {
              "lessThan": "2a2db520e3ca5aafba7c211abfd397666c9b5f9d",
              "status": "affected",
              "version": "5341ee0adb17d12a96dc5344e0d267cd12b52135",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/vt6655/device_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "lessThan": "4.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.262",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.220",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.150",
              "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": "4.19.262",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.220",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.150",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: vt6655: fix some erroneous memory clean-up loops\n\nIn some initialization functions of this driver, memory is allocated with\n\u0027i\u0027 acting as an index variable and increasing from 0. The commit in\n\"Fixes\" introduces some clean-up codes in case of allocation failure,\nwhich free memory in reverse order with \u0027i\u0027 decreasing to 0. However,\nthere are some problems:\n  - The case i=0 is left out. Thus memory is leaked.\n  - In case memory allocation fails right from the start, the memory\n    freeing loops will start with i=-1 and invalid memory locations will\n    be accessed.\n\nOne of these loops has been fixed in commit c8ff91535880 (\"staging:\nvt6655: fix potential memory leak\"). Fix the remaining erroneous loops."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The flaw is reached only when bringing up the vt6655 mac80211 interface (SIOCSIFFLAGS/ip link set up \u2192 ieee80211_open \u2192 drv_start \u2192 vnt_start \u2192 device_init_rd0/rd1/td1_ring), which is local driver initialization\u2014not packet parsing or adjacent-link frame injection.\nAC:L - A local attacker can induce memory pressure (memcg/mmap) so the first kzalloc or device_alloc_rx_buf in ring init fails after device_init_rings succeeds, then deterministically hit the broken while (--i) path; no race or attacker-uncontrollable layout is required.\nPR:L - Triggering vnt_start requires CAP_NET_ADMIN to set IFF_UP, but in realistic deployments (NetworkManager/polkit seat policies, delegated net admin) an unprivileged local user can enable the wireless interface; per guidance when uncertain this is scored Low rather than High.\nUI:N - The attacker brings the interface up and forces the allocation-failure cleanup themselves; no separate victim mount, click, or other interactive action is required.\nS:U - Impact is host-kernel heap corruption inside the staging PCI WiFi driver under the same OS authority, with no VM escape, IOMMU bypass, or other security-boundary crossing.\nC:H - On i==0 failure, while (--i) indexes aRD1Ring[-1]/apTD1Rings[-1] into the previously initialized adjacent DMA ring and frees live rd_info/td_info (double-free), and continues further OOB\u2014classic heap corruption enabling arbitrary kernel read primitives.\nI:H - The same OOB/double-free of descriptor side objects (kfree, dma_unmap, kfree_skb on adjacent or garbage pointers) is exploitable for heap corruption and control-flow hijacking beyond a pure crash.\nA:H - The buggy loop from i==0 decrements indefinitely through invalid indices and frees garbage/adjacent objects, causing kernel oops/panic even without full exploitation; any such crash is Availability High."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:58:21.802Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/637672a71f5016a40b0a6c0f3c8ad25eacedc8c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/95ac62e8545be2b0a8cae0beef7c682e2e470e48"
        },
        {
          "url": "https://git.kernel.org/stable/c/f19e5b7df54590c831f350381963f25585c8f7d5"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9e9806d1c315bc50dce05479a079b9a104474b8"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed11b73c963292e7b49c0f37025c58ed3b7921d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/2a2db520e3ca5aafba7c211abfd397666c9b5f9d"
        }
      ],
      "title": "staging: vt6655: fix some erroneous memory clean-up loops",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50355",
    "datePublished": "2025-09-17T14:56:08.356Z",
    "dateReserved": "2025-09-17T14:53:06.993Z",
    "dateUpdated": "2026-08-05T08:58:21.802Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

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.

Action not permitted

FKIE_CVE-2022-50355

CVE-2022-50355 (GCVE-0-2022-50355)

Tags

Sightings

Nomenclature

Related by attack behaviour