ksmbd: scope session state changes to bound connections

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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.

Fixes: f5a544e3ba ("ksmbd: add support for SMB3 multichannel")
Fixes: abcc506a9a ("ksmbd: fix racy issue from smb2 close and logoff with multichannel")
Fixes: c444139cb7 ("ksmbd: rewrite stop_sessions() with restartable iteration")
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

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This commit is contained in:

Namjae Jeon 2026-08-13 09:01:00 +09:00

parent 2cbd4a8bf4

commit c50e628122

4 changed files with 41 additions and 16 deletions

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37

fs/smb/server/connection.c

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6

fs/smb/server/connection.h

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8

fs/smb/server/mgmt/user_session.c

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6

fs/smb/server/smb2pdu.c

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