CVE-2026-98172

/// Technical description

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.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References