socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={<r0=>0xffffffffffffffff})
ioctl$int_in(r0, 0x5452, &(0x7f0000000100)=0x5)
recvmsg(r0, &(0x7f0000000440)={0x0, 0x0, 0x0}, 0x0)