r0 = socket$inet6_tcp(0xa, 0x1, 0x0) bind$inet6(r0, &(0x7f0000000140)={0xa, 0x4e20, 0x0, @ipv4={'\x00', '\xff\xff', @empty}}, 0x1c) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20, 0x0, @empty}, 0x1c) r1 = socket$inet(0x2, 0x3, 0xff) r2 = dup(r1) setsockopt$inet_mreq(r2, 0x0, 0x23, &(0x7f0000000000)={@multicast2, @loopback}, 0x8) sendmsg$inet6(r0, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000540)=[{&(0x7f0000000100)=':', 0x1}], 0x1}, 0x10044008) openat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0x882c2, 0x0) mmap(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0x0, 0x10, 0xffffffffffffffff, 0x0)