mmap(&(0x7f0000000000/0x2000)=nil, 0x2000, 0x0, 0x40032, 0xffffffffffffffff, 0x0) r0 = socket$inet6_udplite(0xa, 0x2, 0x88) setsockopt$inet6_buf(r0, 0x29, 0x0, &(0x7f00000000c0)="d197ccd7", 0x4)