ghsa-7fqw-qhgj-3c8c
Vulnerability from github
Published
2024-05-01 06:31
Modified
2024-06-16 15:30
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Details

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

netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()

nft_unregister_obj() can concurrent with __nft_obj_type_get(), and there is not any protection when iterate over nf_tables_objects list in __nft_obj_type_get(). Therefore, there is potential data-race of nf_tables_objects list entry.

Use list_for_each_entry_rcu() to iterate over nf_tables_objects list in __nft_obj_type_get(), and use rcu_read_lock() in the caller nft_obj_type_get() to protect the entire type query process.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-27019"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T06:15:20Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()\n\nnft_unregister_obj() can concurrent with __nft_obj_type_get(),\nand there is not any protection when iterate over nf_tables_objects\nlist in __nft_obj_type_get(). Therefore, there is potential data-race\nof nf_tables_objects list entry.\n\nUse list_for_each_entry_rcu() to iterate over nf_tables_objects\nlist in __nft_obj_type_get(), and use rcu_read_lock() in the caller\nnft_obj_type_get() to protect the entire type query process.",
  "id": "GHSA-7fqw-qhgj-3c8c",
  "modified": "2024-06-16T15:30:43Z",
  "published": "2024-05-01T06:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27019"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/379bf7257bc5f2a1b1ca8514e08a871b7bf6d920"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ca946b19caf655a08d5e2266d4d5526025ebb73"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ad333578f736d56920e090d7db1f8dec891d815e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cade34279c2249eafe528564bd2e203e4ff15f88"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d78d867dcea69c328db30df665be5be7d0148484"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df7c0fb8c2b9f9cac65659332581b19682a71349"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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