CVE-2026-90154

Published: September 19, 2026Last modified: September 19, 2026

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: scope session state changes to bound connections ksmbd_all_conn_set_status() treats every connection whose transient binding flag is set as belonging to the target SessionId. A logoff or session replacement can consequently move an unrelated connection to NEED_RECONNECT or NEED_SETUP. Pass the target session itself and select connections using either the connection-local session xarray or the session's permanent channel list. Use the same association test while waiting for requests to drain. Serialize session-wide status changes under request_lock and do not overwrite EXITING or RELEASING. Protect the shutdown transition with the same lock so a concurrent session update cannot revive a closing connection.

Status

References

• https://git.kernel.org/stable/c/0875872718b98e8530fbc634e5aa7dbd3253b80d
• https://git.kernel.org/stable/c/c50e628122aed077695669e25b842e778511a43d