fkie_cve-2024-27020
Vulnerability from fkie_nvd
Published
2024-05-01 06:15
Modified
2025-11-04 18:16
Severity ?
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() nft_unregister_expr() can concurrent with __nft_expr_type_get(), and there is not any protection when iterate over nf_tables_expressions list in __nft_expr_type_get(). Therefore, there is potential data-race of nf_tables_expressions list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_expressions list in __nft_expr_type_get(), and use rcu_read_lock() in the caller nft_expr_type_get() to protect the entire type query process.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/01f1a678b05ade4b1248019c2dcca773aebbeb7fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b6de00206adbbfc6373b3ae38d2a6f197987907Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8d56bad42ac4c43c6c72ddd6a654a2628bf839c5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/934e66e231cff2b18faa2c8aad0b8cec13957e05Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/939109c0a8e2a006a6cc8209e262d25065f4403aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a9ebf340d123ae12582210407f879d6a5a1bc25bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b38a133d37fa421c8447b383d788c9cc6f5cb34cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f969eb84ce482331a991079ab7a5c4dc3b7f89bfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/01f1a678b05ade4b1248019c2dcca773aebbeb7fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0b6de00206adbbfc6373b3ae38d2a6f197987907Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8d56bad42ac4c43c6c72ddd6a654a2628bf839c5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/934e66e231cff2b18faa2c8aad0b8cec13957e05Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/939109c0a8e2a006a6cc8209e262d25065f4403aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a9ebf340d123ae12582210407f879d6a5a1bc25bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b38a133d37fa421c8447b383d788c9cc6f5cb34cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f969eb84ce482331a991079ab7a5c4dc3b7f89bfPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9


To clipboard 

{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()\n\nnft_unregister_expr() can concurrent with __nft_expr_type_get(),\nand there is not any protection when iterate over nf_tables_expressions\nlist in __nft_expr_type_get(). Therefore, there is potential data-race\nof nf_tables_expressions list entry.\n\nUse list_for_each_entry_rcu() to iterate over nf_tables_expressions\nlist in __nft_expr_type_get(), and use rcu_read_lock() in the caller\nnft_expr_type_get() to protect the entire type query process."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: nf_tables: corrige una posible ejecuci\u00f3n de datos en __nft_expr_type_get() nft_unregister_expr() puede concurrente con __nft_expr_type_get(), y no hay ninguna protecci\u00f3n cuando se itera sobre la lista nf_tables_expressions en __nft_expr_type_get() . Por lo tanto, existe una posible ejecuci\u00f3n de datos en la entrada de la lista nf_tables_expressions. Utilice list_for_each_entry_rcu() para iterar sobre la lista nf_tables_expressions en __nft_expr_type_get() y utilice rcu_read_lock() en el llamador nft_expr_type_get() para proteger todo el proceso de consulta de tipos."
    }
  ],
  "id": "CVE-2024-27020",
  "lastModified": "2025-11-04T18:16:12.100",
  "metrics": {
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          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
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          "userInteraction": "NONE",
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        "type": "Secondary"
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  "published": "2024-05-01T06:15:20.840",
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    },
    {
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
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        {
          "lang": "en",
          "value": "CWE-362"
        }
      ],
      "source": "nvd@nist.gov",
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          "value": "CWE-362"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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