ghsa-c922-2344-3839
Vulnerability from github
Published
2024-09-18 09:30
Modified
2025-11-03 21:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()

null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) and parse_lease_state() return NULL.

Fix this by check if 'lease_ctx_info' is NULL.

Additionally, remove the redundant parentheses in parse_durable_handle_context().

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46742"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-18T08:15:03Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()\n\nnull-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)\nand parse_lease_state() return NULL.\n\nFix this by check if \u0027lease_ctx_info\u0027 is NULL.\n\nAdditionally, remove the redundant parentheses in\nparse_durable_handle_context().",
  "id": "GHSA-c922-2344-3839",
  "modified": "2025-11-03T21:31:13Z",
  "published": "2024-09-18T09:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46742"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824ada"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/878f32878351104448b86ef5b85d1f8ed6f599fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec28c35029b7930f31117f9284874b63bea4f31b"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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