CVE-2022-50512 (GCVE-0-2022-50512)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:19 – Updated: 2025-12-23 13:29
VLAI?
Title
ext4: fix potential memory leak in ext4_fc_record_regions()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 , < 2cfb769d60a2a57eb3566765428b6131cd16dcfe (git)
Affected: 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 , < 417b0455a0b6d0f60a2930592731d1f8340e24be (git)
Affected: 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 , < a4058b869e6c5e517c79e30532a350d0f3115c3e (git)
Affected: 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 , < 518566e71ad86b7c2f1bf6d9caee9588bb7ac158 (git)
Affected: 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 , < 7069d105c1f15c442b68af43f7fde784f3126739 (git)
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    Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (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)
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/fast_commit.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "5.10"
            },
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              "status": "unaffected",
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              "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": [
                {
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                  "vulnerable": true
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                },
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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 \u0027state-\u003efc_regions\u0027 may not be\nfreed by krealloc, but \u0027state-\u003efc_regions\u0027 already set NULL. Then will\nlead to \u0027state-\u003efc_regions\u0027 memory leak."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-23T13:29:44.049Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2cfb769d60a2a57eb3566765428b6131cd16dcfe"
        },
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          "url": "https://git.kernel.org/stable/c/417b0455a0b6d0f60a2930592731d1f8340e24be"
        },
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/7069d105c1f15c442b68af43f7fde784f3126739"
        }
      ],
      "title": "ext4: fix potential memory leak in ext4_fc_record_regions()",
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        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50512",
    "datePublished": "2025-10-07T15:19:08.854Z",
    "dateReserved": "2025-10-07T15:14:58.491Z",
    "dateUpdated": "2025-12-23T13:29:44.049Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50512\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-07T16:15:34.473\",\"lastModified\":\"2025-10-08T19:38:32.610\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"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 \u0027state-\u003efc_regions\u0027 may not be\\nfreed by krealloc, but \u0027state-\u003efc_regions\u0027 already set NULL. Then will\\nlead to \u0027state-\u003efc_regions\u0027 memory leak.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2cfb769d60a2a57eb3566765428b6131cd16dcfe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/417b0455a0b6d0f60a2930592731d1f8340e24be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/518566e71ad86b7c2f1bf6d9caee9588bb7ac158\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7069d105c1f15c442b68af43f7fde784f3126739\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a4058b869e6c5e517c79e30532a350d0f3115c3e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • 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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