r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000016c0)={&(0x7f0000001600), 0xc, &(0x7f0000001680)={&(0x7f0000001640)={0x14, 0x0, 0x1}, 0x14}}, 0x0)