CVE-2023-54076 (GCVE-0-2023-54076)
Vulnerability from cvelistv5
Published
2025-12-24 12:23
Modified
2025-12-24 12:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix missed ses refcounting Use new cifs_smb_ses_inc_refcount() helper to get an active reference of @ses and @ses->dfs_root_ses (if set). This will prevent @ses->dfs_root_ses of being put in the next call to cifs_put_smb_ses() and thus potentially causing an use-after-free bug.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8e3554150d6c80a84b3cb046615d1a0e943811dc
Version: 8e3554150d6c80a84b3cb046615d1a0e943811dc
Version: f30d226bcc9f0e2d97b4a6e94c43a28148fbeab6
Version: c082c3be0f96e759ff2e361d929832fda0b93851
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/dfs.c",
            "fs/smb/client/smb2transport.c"
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          "vendor": "Linux",
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          "vendor": "Linux",
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              "status": "unaffected",
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      "cpeApplicability": [
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                  "versionStartIncluding": "6.2.15",
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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\nsmb: client: fix missed ses refcounting\n\nUse new cifs_smb_ses_inc_refcount() helper to get an active reference\nof @ses and @ses-\u003edfs_root_ses (if set).  This will prevent\n@ses-\u003edfs_root_ses of being put in the next call to cifs_put_smb_ses()\nand thus potentially causing an use-after-free bug."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-24T12:23:18.330Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/eb382196e6f6e05cfafdab797840e5a96c6e7bf0"
        },
        {
          "url": "https://git.kernel.org/stable/c/bf99f6be2d20146942bce6f9e90a0ceef12cbc1e"
        }
      ],
      "title": "smb: client: fix missed ses refcounting",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54076",
    "datePublished": "2025-12-24T12:23:18.330Z",
    "dateReserved": "2025-12-24T12:21:05.093Z",
    "dateUpdated": "2025-12-24T12:23:18.330Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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