socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000001000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
sendmsg(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f0000000000)="1d", 0x1}], 0x1}, 0x40011)
sendmsg(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f0000000240)=[{&(0x7f0000001040)="ff", 0x1}], 0x1}, 0x0)
recvfrom(r0, 0x0, 0x0, 0x0, 0x0, 0x0)
recvmmsg(r1, &(0x7f0000000c80)=[{{0x0, 0x52, 0x0}}], 0x1, 0x0, 0x0)