socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000380)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_int(r0, 0x1, 0x10, &(0x7f00000000c0)=0x3, 0x4)
sendmmsg$inet(r1, &(0x7f0000000440)=[{{0x0, 0x0, &(0x7f00000014c0)=[{&(0x7f0000000000)="d0", 0x1}], 0x1}}], 0x1, 0x0)
recvmmsg(r0, &(0x7f000000b2c0)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000040)=""/21, 0x15}}], 0x1, 0x0, 0x0)