« Volver al listado

CVE-2022-50512

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix potential memory leak in ext4_fc_record_regions()

As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2022-50512",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "lessThan": "2cfb769d60a2a57eb3566765428b6131cd16dcfe",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "lessThan": "417b0455a0b6d0f60a2930592731d1f8340e24be",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "lessThan": "a4058b869e6c5e517c79e30532a350d0f3115c3e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "lessThan": "518566e71ad86b7c2f1bf6d9caee9588bb7ac158",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "lessThan": "7069d105c1f15c442b68af43f7fde784f3126739",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "fs/ext4/fast_commit.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.10",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.150",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.75",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
            {
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/ext4/fast_commit.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-10-07T16:15:34.473",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2cfb769d60a2a57eb3566765428b6131cd16dcfe",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/417b0455a0b6d0f60a2930592731d1f8340e24be",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/518566e71ad86b7c2f1bf6d9caee9588bb7ac158",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7069d105c1f15c442b68af43f7fde784f3126739",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a4058b869e6c5e517c79e30532a350d0f3115c3e",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix potential memory leak in ext4_fc_record_regions()\n\nAs krealloc may return NULL, in this case 'state->fc_regions' may not be\nfreed by krealloc, but 'state->fc_regions' already set NULL. Then will\nlead to 'state->fc_regions' memory leak."
    }
  ],
  "lastModified": "2026-06-17T05:23:41.867",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0CF7C831-3BE2-41A1-A518-A1E4AEBC5669",
              "versionEndExcluding": "5.10.150",
              "versionStartIncluding": "5.10"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6D945F46-F32F-4C09-8400-C3477E22A9FB",
              "versionEndExcluding": "5.15.75",
              "versionStartIncluding": "5.11"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "19B4C3A4-E5C3-41DC-BB14-BE72858E7D35",
              "versionEndExcluding": "5.19.17",
              "versionStartIncluding": "5.16"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5BCD8201-B847-4442-B894-70D430128DEF",
              "versionEndExcluding": "6.0.3",
              "versionStartIncluding": "6.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}