CVE-2026-23228: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

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().

Affected products

• Linux Linux Kernel: from 5.15.91, before 5.15.201 (fixed in 5.15.201); from 6.1.9, before 6.1.164 (fixed in 6.1.164); from 6.2.1, before 6.6.125 (fixed in 6.6.125); from 6.7, before 6.12.72 (fixed in 6.12.72); from 6.13, before 6.18.11 (fixed in 6.18.11); from 6.19, before 6.19.1 (fixed in 6.19.1); …

Published 2026-02-18. Last modified 2026-06-17.