FKIE_CVE-2023-54076

Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2026-06-17 06:46
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf99f6be2d20146942bce6f9e90a0ceef12cbc1e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb382196e6f6e05cfafdab797840e5a96c6e7bf0
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/dfs.c",
            "fs/smb/client/smb2transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "eb382196e6f6e05cfafdab797840e5a96c6e7bf0",
              "status": "affected",
              "version": "8e3554150d6c80a84b3cb046615d1a0e943811dc",
              "versionType": "git"
            },
            {
              "lessThan": "bf99f6be2d20146942bce6f9e90a0ceef12cbc1e",
              "status": "affected",
              "version": "8e3554150d6c80a84b3cb046615d1a0e943811dc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f30d226bcc9f0e2d97b4a6e94c43a28148fbeab6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c082c3be0f96e759ff2e361d929832fda0b93851",
              "versionType": "git"
            },
            {
              "lessThan": "6.3",
              "status": "affected",
              "version": "6.2.15",
              "versionType": "semver"
            },
            {
              "lessThan": "6.4",
              "status": "affected",
              "version": "6.3.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/dfs.c",
            "fs/smb/client/smb2transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2023-54076",
  "lastModified": "2026-06-17T06:46:45.653",
  "metrics": {},
  "published": "2025-12-24T13:16:09.447",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bf99f6be2d20146942bce6f9e90a0ceef12cbc1e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb382196e6f6e05cfafdab797840e5a96c6e7bf0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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