CVE-2024-50286 ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-use-after-free in ksmbdsmb2sessioncreate There is a race condition between ksmbdsmb2sessioncreate and ksmbdexpiresession. This patch add missing sessionstablelock while adding/deleting session from global session...