CVE-2026-90152

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix session leak in ksmbd_session_register() See the procedure below: smb2_sess_setup ksmbd_smb2_session_create __session_create atomic_set(&sess->refcnt, 2) hash_add(sessions_table, &sess->hlist, sess->id) ksmbd_session_register xa_store(&conn->sessions, sess->id, sess) // fail ksmbd_user_session_put atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed Remove the session from sessions_table and drop its table reference if xa_store() fails.

• https://git.kernel.org/stable/c/03a22a003f41b182245e6c71fe565e277cff7094
• https://git.kernel.org/stable/c/55c677619084f9c9fa4146d933cc8ccafc924c87
• https://git.kernel.org/stable/c/99b25b046e47e4904373cfeb445c5483f1633d88
• https://git.kernel.org/stable/c/b967a595fb735d313a8676b2ca6a4cba38506482