socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
sendmmsg$unix(r0, &(0x7f00000053c0)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0, 0x0, &(0x7f0000005380)=[@cred={{0x1c}}], 0x20}}], 0x2, 0x0)