linux/fs/smb
Aleksandr Khromov c0cd3fc682 ksmbd: initialize FileSystemControlFlags in FS_CONTROL_INFORMATION
smb2_get_info_filesystem() reports 48 bytes for FS_CONTROL_INFORMATION,
that is the whole of struct smb2_fs_control_info, but never assigns
FileSystemControlFlags.  Those four bytes go to the client as they are
found in the response buffer.

The buffer is zeroed on allocation, so a standalone request leaks
nothing.  A compound request can leak: the offset of the next response
is advanced by the length pinned for the previous one, so a reply that
was written into the buffer and then dropped in favour of the short
error response of smb2_set_err_rsp() stays there, and the next reply is
laid over it with only the header cleared.

ksmbd does not implement quota tracking, so report no control flags.

Fixes: e2f34481b2 ("cifsd: add server-side procedures for SMB3")
Cc: stable@vger.kernel.org
Signed-off-by: Aleksandr Khromov <haa@amicon.ru>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2026-08-31 19:26:12 +09:00
..
client This contains a set of 142 SMB server updates focused on SMB2 command 2026-08-23 08:41:36 -07:00
common ksmbd: add SMB Direct RDMA encryption transform 2026-08-17 22:38:25 +09:00
server ksmbd: initialize FileSystemControlFlags in FS_CONTROL_INFORMATION 2026-08-31 19:26:12 +09:00
smbdirect This contains a set of 142 SMB server updates focused on SMB2 command 2026-08-23 08:41:36 -07:00
Kconfig smb: smbdirect: move fs/smb/common/smbdirect/ to fs/smb/smbdirect/ 2026-04-22 19:00:41 -05:00
Makefile smb: smbdirect: move fs/smb/common/smbdirect/ to fs/smb/smbdirect/ 2026-04-22 19:00:41 -05:00