CVE-2022-50048 (GCVE-0-2022-50048)
Vulnerability from cvelistv5
Published
2025-06-18 11:01
Modified
2025-06-18 11:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: possible module reference underflow in error path dst->ops is set on when nft_expr_clone() fails, but module refcount has not been bumped yet, therefore nft_expr_destroy() leads to module reference underflow.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8cfd9b0f8515e7c361bba27e2a2684cbd427fe01
Version: 8cfd9b0f8515e7c361bba27e2a2684cbd427fe01
Version: 8cfd9b0f8515e7c361bba27e2a2684cbd427fe01
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nf_tables_api.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
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              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "lessThanOrEqual": "5.15.*",
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            {
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              "version": "5.19.4",
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              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
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      ],
      "cpeApplicability": [
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                },
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: possible module reference underflow in error path\n\ndst-\u003eops is set on when nft_expr_clone() fails, but module refcount has\nnot been bumped yet, therefore nft_expr_destroy() leads to module\nreference underflow."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:01:48.893Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b59bee8b05b0e789b5a298cacb09e8aaa3367a29"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e52e6cfec6342c3d0df47dc3a76724fb3dabf56"
        },
        {
          "url": "https://git.kernel.org/stable/c/c485c35ff6783ccd12c160fcac6a0e504e83e0bf"
        }
      ],
      "title": "netfilter: nf_tables: possible module reference underflow in error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50048",
    "datePublished": "2025-06-18T11:01:48.893Z",
    "dateReserved": "2025-06-18T10:57:27.402Z",
    "dateUpdated": "2025-06-18T11:01:48.893Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50048\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:33.393\",\"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\\nnetfilter: nf_tables: possible module reference underflow in error path\\n\\ndst-\u003eops is set on when nft_expr_clone() fails, but module refcount has\\nnot been bumped yet, therefore nft_expr_destroy() leads to module\\nreference underflow.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_tables: posible desbordamiento de referencia de m\u00f3dulo en la ruta de error dst-\u0026gt;ops est\u00e1 activado cuando nft_expr_clone() falla, pero el recuento de referencias del m\u00f3dulo a\u00fan no se ha incrementado, por lo tanto, nft_expr_destroy() provoca un desbordamiento de referencia de m\u00f3dulo.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1e52e6cfec6342c3d0df47dc3a76724fb3dabf56\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b59bee8b05b0e789b5a298cacb09e8aaa3367a29\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c485c35ff6783ccd12c160fcac6a0e504e83e0bf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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