socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
r1 = dup(r0)
setsockopt$sock_int(r1, 0x1, 0x10, &(0x7f0000000200)=0xbe7, 0x4)
sendmmsg(r0, &(0x7f0000001580)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, &(0x7f0000001280)=[{0x0}, {0x0}, {&(0x7f0000001140)="dc", 0x1}], 0x3}}], 0x2, 0x0)