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ksmbd: fix racy issue from session setup and logoff
[ Upstream commit f5c779b ] This racy issue is triggered by sending concurrent session setup and logoff requests. This patch does not set connection status as KSMBD_SESS_GOOD if state is KSMBD_SESS_NEED_RECONNECT in session setup. And relookup session to validate if session is deleted in logoff. Cc: stable@vger.kernel.org Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-20481, ZDI-CAN-20590, ZDI-CAN-20596 Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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