CVE-2025-38018 (GCVE-0-2025-38018)
Vulnerability from cvelistv5
Published
2025-06-18 09:28
Modified
2025-06-18 09:28
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/tls: fix kernel panic when alloc_page failed We cannot set frag_list to NULL pointer when alloc_page failed. It will be used in tls_strp_check_queue_ok when the next time tls_strp_read_sock is called. This is because we don't reset full_len in tls_strp_flush_anchor_copy() so the recv path will try to continue handling the partial record on the next call but we dettached the rcvq from the frag list. Alternative fix would be to reset full_len. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028 Call trace: tls_strp_check_rcv+0x128/0x27c tls_strp_data_ready+0x34/0x44 tls_data_ready+0x3c/0x1f0 tcp_data_ready+0x9c/0xe4 tcp_data_queue+0xf6c/0x12d0 tcp_rcv_established+0x52c/0x798
References
Impacted products
Vendor Product Version
Linux Linux Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tls/tls_strp.c"
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          "vendor": "Linux",
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          "programFiles": [
            "net/tls/tls_strp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.140",
              "versionType": "semver"
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              "version": "6.6.92",
              "versionType": "semver"
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                },
                {
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                  "vulnerable": true
                },
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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\nnet/tls: fix kernel panic when alloc_page failed\n\nWe cannot set frag_list to NULL pointer when alloc_page failed.\nIt will be used in tls_strp_check_queue_ok when the next time\ntls_strp_read_sock is called.\n\nThis is because we don\u0027t reset full_len in tls_strp_flush_anchor_copy()\nso the recv path will try to continue handling the partial record\non the next call but we dettached the rcvq from the frag list.\nAlternative fix would be to reset full_len.\n\nUnable to handle kernel NULL pointer dereference\nat virtual address 0000000000000028\n Call trace:\n tls_strp_check_rcv+0x128/0x27c\n tls_strp_data_ready+0x34/0x44\n tls_data_ready+0x3c/0x1f0\n tcp_data_ready+0x9c/0xe4\n tcp_data_queue+0xf6c/0x12d0\n tcp_rcv_established+0x52c/0x798"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T09:28:26.443Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8f7f96549bc55e4ef3a6b499bc5011e5de2f46c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/406d05da26835943568e61bb751c569efae071d4"
        },
        {
          "url": "https://git.kernel.org/stable/c/a11b8c0be6acd0505a58ff40d474bd778b25b93a"
        },
        {
          "url": "https://git.kernel.org/stable/c/5f1f833cb388592bb46104463a1ec1b7c41975b6"
        },
        {
          "url": "https://git.kernel.org/stable/c/491deb9b8c4ad12fe51d554a69b8165b9ef9429f"
        }
      ],
      "title": "net/tls: fix kernel panic when alloc_page failed",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38018",
    "datePublished": "2025-06-18T09:28:26.443Z",
    "dateReserved": "2025-04-16T04:51:23.977Z",
    "dateUpdated": "2025-06-18T09:28:26.443Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38018\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T10:15:33.433\",\"lastModified\":\"2025-06-18T13:46:52.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/tls: fix kernel panic when alloc_page failed\\n\\nWe cannot set frag_list to NULL pointer when alloc_page failed.\\nIt will be used in tls_strp_check_queue_ok when the next time\\ntls_strp_read_sock is called.\\n\\nThis is because we don\u0027t reset full_len in tls_strp_flush_anchor_copy()\\nso the recv path will try to continue handling the partial record\\non the next call but we dettached the rcvq from the frag list.\\nAlternative fix would be to reset full_len.\\n\\nUnable to handle kernel NULL pointer dereference\\nat virtual address 0000000000000028\\n Call trace:\\n tls_strp_check_rcv+0x128/0x27c\\n tls_strp_data_ready+0x34/0x44\\n tls_data_ready+0x3c/0x1f0\\n tcp_data_ready+0x9c/0xe4\\n tcp_data_queue+0xf6c/0x12d0\\n tcp_rcv_established+0x52c/0x798\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/tls: correcci\u00f3n del p\u00e1nico del kernel cuando alloc_page falla. No se puede establecer frag_list como un puntero nulo cuando alloc_page falla. Se usar\u00e1 en tls_strp_check_queue_ok la pr\u00f3xima vez que se invoque tls_strp_read_sock. Esto se debe a que no se restablece full_len en tls_strp_flush_anchor_copy(), por lo que la ruta de recepci\u00f3n intentar\u00e1 continuar gestionando el registro parcial en la siguiente llamada, pero se ha desvinculado el rcvq de la lista de fragmentos. Una soluci\u00f3n alternativa ser\u00eda restablecer full_len. No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 0000000000000028 Rastreo de llamadas: tls_strp_check_rcv+0x128/0x27c tls_strp_data_ready+0x34/0x44 tls_data_ready+0x3c/0x1f0 tcp_data_ready+0x9c/0xe4 tcp_data_queue+0xf6c/0x12d0 tcp_rcv_established+0x52c/0x798\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/406d05da26835943568e61bb751c569efae071d4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/491deb9b8c4ad12fe51d554a69b8165b9ef9429f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5f1f833cb388592bb46104463a1ec1b7c41975b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8f7f96549bc55e4ef3a6b499bc5011e5de2f46c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a11b8c0be6acd0505a58ff40d474bd778b25b93a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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