avoid and debug bogus ipv6 connection info on go_nethttp and go_grpc …

…connections

pkg/internal/ebpf/common/common.go

@@ -231,10 +231,21 @@ func cstr(chars []uint8) string {
 }
 
 func (connInfo *BPFConnInfo) reqHostInfo() (source, target string) {
+	oneAddress := [16]uint8{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}
+
 	src := make(net.IP, net.IPv6len)
 	dst := make(net.IP, net.IPv6len)
-	copy(src, connInfo.S_addr[:])
-	copy(dst, connInfo.D_addr[:])
+
+	switch {
+	case bytes.Equal(connInfo.S_addr[:], oneAddress[:]) ||
+		bytes.Equal(connInfo.D_addr[:], oneAddress[:]):
+		// If the address is not valid, return an empty string
+		return "", ""
+	default:
+		// If the address is valid, copy the entire address
+		copy(src, connInfo.S_addr[:])
+		copy(dst, connInfo.D_addr[:])
+	}
 
 	srcStr := src.String()
 	dstStr := dst.String()