CVE-2026-98172 (GCVE-0-2026-98172)
Vulnerability from cvelistv5
Published
2026-10-06 08:44
Modified
2026-10-19 09:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix smbd_connection leak on cifs_get_tcp_session() error When an RDMA connection is successfully established via smbd_get_connection() but cifs_get_tcp_session() later fails (e.g. kthread_create() returns an error), the error path frees tcp_ses without first destroying the smbd_connection. Fix this by calling smbd_destroy() in the out_err cleanup path before kfree(tcp_ses). smbd_destroy() safely handles the case where smbd_conn is NULL, so it can be called unconditionally.
References
Impacted products
Vendor Product Version
Linux Linux Version: 2f8946464b11822169b9f10c7cf58a2440b51d54
Version: 2f8946464b11822169b9f10c7cf58a2440b51d54
Version: 2f8946464b11822169b9f10c7cf58a2440b51d54
Version: 2f8946464b11822169b9f10c7cf58a2440b51d54
Version: 2f8946464b11822169b9f10c7cf58a2440b51d54
Version: 2f8946464b11822169b9f10c7cf58a2440b51d54
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{
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      "cpeApplicability": [
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          "nodes": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix smbd_connection leak on cifs_get_tcp_session() error\n\nWhen an RDMA connection is successfully established via\nsmbd_get_connection() but cifs_get_tcp_session() later fails (e.g.\nkthread_create() returns an error), the error path frees tcp_ses\nwithout first destroying the smbd_connection.\n\nFix this by calling smbd_destroy() in the out_err cleanup path before\nkfree(tcp_ses).  smbd_destroy() safely handles the case where\nsmbd_conn is NULL, so it can be called unconditionally."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:15:03.619Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/3164402c58940ff58a3cecdb026405f07b0253af"
        },
        {
          "url": "https://git.kernel.org/stable/c/e3344bb0ff5ec8a276f42239e140f5442841ef23"
        },
        {
          "url": "https://git.kernel.org/stable/c/5c908e49d349266dff0c86dda6a05df0ff19b824"
        },
        {
          "url": "https://git.kernel.org/stable/c/928edc4bd6a617caabeb575fc13c254d9df623c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/b26a3fcf2f1c2cadba400290b639f01395db8fc8"
        },
        {
          "url": "https://git.kernel.org/stable/c/e75c96157d45e498970158c8f7373d90102e33b9"
        }
      ],
      "title": "smb: client: fix smbd_connection leak on cifs_get_tcp_session() error",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98172",
    "datePublished": "2026-10-06T08:44:16.721Z",
    "dateReserved": "2026-09-25T10:25:14.322Z",
    "dateUpdated": "2026-10-19T09:15:03.619Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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