GHSA-H5HV-W97X-4565
Vulnerability from github – Published: 2026-10-06 09:31 – Updated: 2026-10-06 09:31In 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.
{
"affected": [],
"aliases": [
"CVE-2026-98172"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-06T09:17:58Z",
"severity": null
},
"details": "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.",
"id": "GHSA-h5hv-w97x-4565",
"modified": "2026-10-06T09:31:28Z",
"published": "2026-10-06T09:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98172"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3164402c58940ff58a3cecdb026405f07b0253af"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5c908e49d349266dff0c86dda6a05df0ff19b824"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/928edc4bd6a617caabeb575fc13c254d9df623c4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b26a3fcf2f1c2cadba400290b639f01395db8fc8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e3344bb0ff5ec8a276f42239e140f5442841ef23"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e75c96157d45e498970158c8f7373d90102e33b9"
}
],
"schema_version": "1.4.0",
"severity": []
}
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