ksmbd: fix racy issue from session setup and logoff
mainline inclusion from mainline-v6.4-rc1 commit f5c779b7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I7BG0L CVE: CVE-2023-32250,CVE-2023-32252,CVE-2023-32257 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5c779b7ddbda30866cf2a27c63e34158f858c73 -------------------------------- 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: NNamjae Jeon <linkinjeon@kernel.org> Signed-off-by: NSteve French <stfrench@microsoft.com> Signed-off-by: NZhaoLong Wang <wangzhaolong1@huawei.com>
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