fkie_cve-2022-48643
Vulnerability from fkie_nvd
Published
2024-04-28 13:15
Modified
2024-11-21 07:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain() syzbot is reporting underflow of nft_counters_enabled counter at nf_tables_addchain() [1], for commit 43eb8949cfdffa76 ("netfilter: nf_tables: do not leave chain stats enabled on error") missed that nf_tables_chain_destroy() after nft_basechain_init() in the error path of nf_tables_addchain() decrements the counter because nft_basechain_init() makes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag. Increment the counter immediately after returning from nft_basechain_init().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()\n\nsyzbot is reporting underflow of nft_counters_enabled counter at\nnf_tables_addchain() [1], for commit 43eb8949cfdffa76 (\"netfilter:\nnf_tables: do not leave chain stats enabled on error\") missed that\nnf_tables_chain_destroy() after nft_basechain_init() in the error path of\nnf_tables_addchain() decrements the counter because nft_basechain_init()\nmakes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag.\n\nIncrement the counter immediately after returning from\nnft_basechain_init()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_tables: corrige el desbordamiento de nft_counters_enabled en nf_tables_addchain() syzbot informa el desbordamiento del contador nft_counters_enabled en nf_tables_addchain() [1], para el commit 43eb8949cfdffa76 (\"netfilter: nf_tables: no salir estad\u00edsticas de cadena habilitadas en caso de error\") pas\u00f3 por alto que nf_tables_chain_destroy() despu\u00e9s de nft_basechain_init() en la ruta de error de nf_tables_addchain() disminuye el contador porque nft_basechain_init() hace que nft_is_base_chain() devuelva verdadero al configurar el indicador NFT_CHAIN_BASE. Incrementa el contador inmediatamente despu\u00e9s de regresar de nft_basechain_init()."
    }
  ],
  "id": "CVE-2022-48643",
  "lastModified": "2024-11-21T07:33:40.710",
  "metrics": {},
  "published": "2024-04-28T13:15:07.040",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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