CVE-2022-50140 (GCVE-0-2022-50140)
Vulnerability from cvelistv5
Published
2025-06-18 11:03
Modified
2025-06-18 11:03
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: memstick/ms_block: Fix a memory leak 'erased_blocks_bitmap' is never freed. As it is allocated at the same time as 'used_blocks_bitmap', it is likely that it should be freed also at the same time. Add the corresponding bitmap_free() in msb_data_clear().
References
Impacted products
Vendor Product Version
Linux Linux Version: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63
Version: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63
Version: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63
Version: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63
Version: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63
Version: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63
Version: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63
Version: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/memstick/core/ms_block.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
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            {
              "lessThanOrEqual": "5.4.*",
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              "version": "5.4.211",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick/ms_block: Fix a memory leak\n\n\u0027erased_blocks_bitmap\u0027 is never freed. As it is allocated at the same time\nas \u0027used_blocks_bitmap\u0027, it is likely that it should be freed also at the\nsame time.\n\nAdd the corresponding bitmap_free() in msb_data_clear()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:03:03.027Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/efd675246aec045507b9425c67b548cc2d782d8f"
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        {
          "url": "https://git.kernel.org/stable/c/37958980eb4cd71ae594ace093c11b6a91e165e8"
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        {
          "url": "https://git.kernel.org/stable/c/54eb7a55be6779c4d0c25eaf5056498a28595049"
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      ],
      "title": "memstick/ms_block: Fix a memory leak",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50140",
    "datePublished": "2025-06-18T11:03:03.027Z",
    "dateReserved": "2025-06-18T10:57:27.423Z",
    "dateUpdated": "2025-06-18T11:03:03.027Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50140\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:43.953\",\"lastModified\":\"2025-06-18T13:47:40.833\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmemstick/ms_block: Fix a memory leak\\n\\n\u0027erased_blocks_bitmap\u0027 is never freed. As it is allocated at the same time\\nas \u0027used_blocks_bitmap\u0027, it is likely that it should be freed also at the\\nsame time.\\n\\nAdd the corresponding bitmap_free() in msb_data_clear().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: memstick/ms_block: Se corrige una fuga de memoria: la variable \u0027erased_blocks_bitmap\u0027 nunca se libera. Dado que se asigna al mismo tiempo que \u0027used_blocks_bitmap\u0027, es probable que deba liberarse tambi\u00e9n simult\u00e1neamente. Agregue el bitmap_free() correspondiente en msb_data_clear().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/16e07966638717416abf45393d6a80a5a1034429\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/37958980eb4cd71ae594ace093c11b6a91e165e8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/39be95d1ff7b44c1e969af72ba9da7332dfcc1da\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/54eb7a55be6779c4d0c25eaf5056498a28595049\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9260a154b3b5e387dbceec7c0ac441470646bc6f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/961d7d12080fe70847f944d656e36cd0dd0214ba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9d8b911fe3c3ed788c66edba7c90e32a4a7a5f53\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/efd675246aec045507b9425c67b548cc2d782d8f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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