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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/406d05da26835943568e61bb751c569efae071d4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/491deb9b8c4ad12fe51d554a69b8165b9ef9429f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f1f833cb388592bb46104463a1ec1b7c41975b6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f7f96549bc55e4ef3a6b499bc5011e5de2f46c4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a11b8c0be6acd0505a58ff40d474bd778b25b93a
Impacted products
Vendor Product Version
Linux Linux Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
Version: 84c61fe1a75b4255df1e1e7c054c9e6d048da417
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   Linux Linux Version: 6.0
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{
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      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tls/tls_strp.c"
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          "vendor": "Linux",
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      ],
      "cpeApplicability": [
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      "descriptions": [
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          "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"
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        },
        {
          "url": "https://git.kernel.org/stable/c/491deb9b8c4ad12fe51d554a69b8165b9ef9429f"
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      ],
      "title": "net/tls: fix kernel panic when alloc_page failed",
      "x_generator": {
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      }
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  "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"
  },
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  }
}


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