r0 = openat(0xffffffffffffffff, &(0x7f0000000280)='/proc/self/exe\x00', 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
sendfile(r1, r0, 0x0, 0x100000000)
ppoll(&(0x7f0000000040)=[{r1}], 0x1, &(0x7f0000000080)={0x0, 0x3938700}, 0x0, 0x0)