Among the many new features pulled into the mainline during the 5.15 merge
window is the ksmbd
network filesystem server. Ksmbd implements the SMB protocol
(also known as CIFS, though that name has gone out of favor) that is
heavily used in the Windows world. The creation of an in-kernel SMB server
is a bit surprising, given that Linux has benefited greatly from the
user-space Samba solution since
shortly after the
beginning. There are reasons for this move but, in the short term at
least, they risk being overshadowed by a worrisome stream of
security-related problems in ksmbd.
もっと詳しく