r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='/proc/self/exe\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='/proc/self/exe\x00', 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendfile(r2, r1, 0x0, 0x1)
sendfile(r2, r0, 0x0, 0x1)