From: Paulo Alcantara <pc@xxxxxx> commit 0fe0781f29dd8ab618999e6bda33c782ebbdb109 upstream. SMB2_open_init() expects a pre-initialised lease_key when opening a file with a lease, so set pfid->lease_key prior to calling it in open_shroot(). This issue was observed when performing some DFS failover tests and the lease key was never randomly generated. Signed-off-by: Paulo Alcantara (SUSE) <pc@xxxxxx> Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx> Reviewed-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx> Reviewed-by: Aurelien Aptel <aaptel@xxxxxxxx> CC: Stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/cifs/smb2ops.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -693,6 +693,11 @@ int open_shroot(unsigned int xid, struct if (smb3_encryption_required(tcon)) flags |= CIFS_TRANSFORM_REQ; + if (!server->ops->new_lease_key) + return -EIO; + + server->ops->new_lease_key(pfid); + memset(rqst, 0, sizeof(rqst)); resp_buftype[0] = resp_buftype[1] = CIFS_NO_BUFFER; memset(rsp_iov, 0, sizeof(rsp_iov));
