CVE-2025-39943 ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer

In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbdirect: validate dataoffset and datalength field of smbdirectdatatransfer If dataoffset and datalength of smbdirectdatatransfer struct are invalid, out of bounds issue could happen. This patch validate dataoffset and...