r0 = memfd_create(&(0x7f0000000340)='\x00', 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x46e2, 0x0)
sendfile(r0, r1, &(0x7f0000000000)=0x20000000000003fe, 0x0)