CVE-2025-39942 (GCVE-0-2025-39942)

Vulnerability from cvelistv5 – Published: 2025-10-04 07:31 – Updated: 2025-10-04 07:31
VLAI?
Title
ksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size This is inspired by the check for data_offset + data_length.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < 196a3a7676d726ee67621ea2bf3b7815ac2685b4 (git)
Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < d3cb3f209d35c44b7ee74f77ed27ebb28995b9ce (git)
Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < 9644798294c7287e65a7b26e35aa6d2ce3345bcc (git)
Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < c64b915bb3d9339adcae5db4be2c35ffbef5e615 (git)
Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < e1868ba37fd27c6a68e31565402b154beaa65df0 (git)
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    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.1.154 , ≤ 6.1.* (semver)
Unaffected: 6.6.108 , ≤ 6.6.* (semver)
Unaffected: 6.12.49 , ≤ 6.12.* (semver)
Unaffected: 6.16.9 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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{
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        {
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          "product": "Linux",
          "programFiles": [
            "fs/smb/server/transport_rdma.c"
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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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\nksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size\n\nThis is inspired by the check for data_offset + data_length."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T07:31:04.810Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/196a3a7676d726ee67621ea2bf3b7815ac2685b4"
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        {
          "url": "https://git.kernel.org/stable/c/d3cb3f209d35c44b7ee74f77ed27ebb28995b9ce"
        },
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        {
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      ],
      "title": "ksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size",
      "x_generator": {
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39942",
    "datePublished": "2025-10-04T07:31:04.810Z",
    "dateReserved": "2025-04-16T07:20:57.148Z",
    "dateUpdated": "2025-10-04T07:31:04.810Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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