socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
sendmmsg(r0, &(0x7f0000005c00)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0, 0x0, &(0x7f0000006000)=ANY=[], 0x298}}], 0x2, 0x0)