CVE-2025-38639 (GCVE-0-2025-38639)
Vulnerability from cvelistv5
Published
2025-08-22 16:00
Modified
2025-08-28 14:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_nfacct: don't assume acct name is null-terminated BUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721 Read of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851 [..] string+0x231/0x2b0 lib/vsprintf.c:721 vsnprintf+0x739/0xf00 lib/vsprintf.c:2874 [..] nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41 xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523 nfnl_acct_find_get() handles non-null input, but the error printk relied on its presence.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/58004aa21e79addaf41667bfe65e93ec51653f18
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/58007fc7b94fb2702000045ff401eb7f5bde7828
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/66d41268ede1e1b6e71ba28be923397ff0b2b9c3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c1ae471da69c09242834e956218ea6a42dd405a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b10cfa2de13d28ddd03210eb234422b7ec92725a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf58e667af7d96c8eb9411f926a0a0955f41ce21
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e021a1eee196887536a6630c5492c23a4c78d452
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e18939176e657a3a20bfbed357b8c55a9f82aba3
Impacted products
Vendor Product Version
Linux Linux Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
Version: ceb98d03eac5704820f2ac1f370c9ff385e3a9f5
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   Linux Linux Version: 3.3
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{
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          "product": "Linux",
          "programFiles": [
            "net/netfilter/xt_nfacct.c"
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              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_nfacct: don\u0027t assume acct name is null-terminated\n\nBUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721\nRead of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851\n[..]\n string+0x231/0x2b0 lib/vsprintf.c:721\n vsnprintf+0x739/0xf00 lib/vsprintf.c:2874\n [..]\n nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41\n xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523\n\nnfnl_acct_find_get() handles non-null input, but the error\nprintk relied on its presence."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-28T14:44:24.673Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/66d41268ede1e1b6e71ba28be923397ff0b2b9c3"
        },
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          "url": "https://git.kernel.org/stable/c/e021a1eee196887536a6630c5492c23a4c78d452"
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        {
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          "url": "https://git.kernel.org/stable/c/7c1ae471da69c09242834e956218ea6a42dd405a"
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          "url": "https://git.kernel.org/stable/c/bf58e667af7d96c8eb9411f926a0a0955f41ce21"
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      ],
      "title": "netfilter: xt_nfacct: don\u0027t assume acct name is null-terminated",
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        "engine": "bippy-1.2.0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38639",
    "datePublished": "2025-08-22T16:00:45.953Z",
    "dateReserved": "2025-04-16T04:51:24.030Z",
    "dateUpdated": "2025-08-28T14:44:24.673Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38639\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-08-22T16:15:37.850\",\"lastModified\":\"2025-08-28T15:15:56.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: xt_nfacct: don\u0027t assume acct name is null-terminated\\n\\nBUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721\\nRead of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851\\n[..]\\n string+0x231/0x2b0 lib/vsprintf.c:721\\n vsnprintf+0x739/0xf00 lib/vsprintf.c:2874\\n [..]\\n nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41\\n xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523\\n\\nnfnl_acct_find_get() handles non-null input, but the error\\nprintk relied on its presence.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: xt_nfacct: no asuma que el nombre de la cuenta termina en nulo BUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721 Read of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851 [..] string+0x231/0x2b0 lib/vsprintf.c:721 vsnprintf+0x739/0xf00 lib/vsprintf.c:2874 [..] nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41 xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523 nfnl_acct_find_get() maneja entradas no nulas, pero el error printk depend\u00eda de su presencia.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/58004aa21e79addaf41667bfe65e93ec51653f18\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/58007fc7b94fb2702000045ff401eb7f5bde7828\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/66d41268ede1e1b6e71ba28be923397ff0b2b9c3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7c1ae471da69c09242834e956218ea6a42dd405a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b10cfa2de13d28ddd03210eb234422b7ec92725a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bf58e667af7d96c8eb9411f926a0a0955f41ce21\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e021a1eee196887536a6630c5492c23a4c78d452\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e18939176e657a3a20bfbed357b8c55a9f82aba3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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