Linux Kernel CVE-2026-23228
MEDIUMCVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
3DescriptionNVD
In the Linux kernel, the following vulnerability has been resolved:
smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()
On kthread_run() failure in ksmbd_tcp_new_connection(), the transport is freed via free_transport(), which does not decrement active_num_conn, leaking this counter.
Replace free_transport() with ksmbd_tcp_disconnect().
AnalysisAI
The Linux kernel ksmbd server leaks the active_num_conn counter when kthread_run() fails during TCP connection initialization, allowing local authenticated users to exhaust connection tracking resources and cause a denial of service. The vulnerability stems from improper cleanup that fails to decrement the counter when freeing the transport structure. …
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RemediationAI
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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