diff --git a/server/gameserver/global.cc b/server/gameserver/global.cc
index 0a7c022..ed1ba1d 100755
--- a/server/gameserver/global.cc
+++ b/server/gameserver/global.cc
@@ -1,8 +1,10 @@
 #include "precompile.h"
 
 #include <google/protobuf/message.h>
+#include <google/protobuf/descriptor.pb.h>
 
 #include "global.h"
+#include "cs_proto.pb.h"
 
 time_t Global::BetweenDays(time_t time1, time_t time2)
 {
@@ -28,17 +30,24 @@ bool CustomParser(f8::MsgHdr& hdr, google::protobuf::Message* msg)
         switch (field_desc->cpp_type()) {
         case google::protobuf::FieldDescriptor::CPPTYPE_STRING:
             {
-                if ((size_t)hdr.offset >= (size_t)hdr.buflen) {
-                    abort();
+                int fixed_len = field_desc->options().GetExtension(cs::fixed_len);
+                if (field_desc->type() == google::protobuf::FieldDescriptor::TYPE_BYTES && fixed_len > 0) {
+                    if ((size_t)hdr.offset + fixed_len > (size_t)hdr.buflen) {
+                        abort();
+                    }
+                } else {
+                    if ((size_t)hdr.offset > (size_t)hdr.buflen) {
+                        abort();
+                    }
+                    std::string val(&hdr.buf[hdr.offset]);
+                    reflection->SetString(msg, field_desc, val);
+                    hdr.offset += val.size() + 1;
                 }
-                std::string val(&hdr.buf[hdr.offset]);
-                reflection->SetString(msg, field_desc, val);
-                hdr.offset += val.size() + 1;
             }
             break;
         case google::protobuf::FieldDescriptor::CPPTYPE_INT32:
             {
-                if (hdr.offset + sizeof(int) < (size_t)hdr.buflen) {
+                if (hdr.offset + sizeof(int) > (size_t)hdr.buflen) {
                     abort();
                 }
                 int* p_val = (int*)&hdr.buf[hdr.offset];
@@ -48,7 +57,7 @@ bool CustomParser(f8::MsgHdr& hdr, google::protobuf::Message* msg)
             break;
         case google::protobuf::FieldDescriptor::CPPTYPE_UINT32:
             {
-                if (hdr.offset + sizeof(unsigned int) < (size_t)hdr.buflen) {
+                if (hdr.offset + sizeof(unsigned int) > (size_t)hdr.buflen) {
                     abort();
                 }
                 unsigned int* p_val = (unsigned int*)&hdr.buf[hdr.offset];
@@ -58,7 +67,7 @@ bool CustomParser(f8::MsgHdr& hdr, google::protobuf::Message* msg)
             break;
         case google::protobuf::FieldDescriptor::CPPTYPE_INT64:
             {
-                if (hdr.offset + sizeof(long long) < (size_t)hdr.buflen) {
+                if (hdr.offset + sizeof(long long) > (size_t)hdr.buflen) {
                     abort();
                 }
                 long long* p_val = (long long*)&hdr.buf[hdr.offset];
@@ -68,7 +77,7 @@ bool CustomParser(f8::MsgHdr& hdr, google::protobuf::Message* msg)
             break;
         case google::protobuf::FieldDescriptor::CPPTYPE_UINT64:
             {
-                if (hdr.offset + sizeof(unsigned long long) < (size_t)hdr.buflen) {
+                if (hdr.offset + sizeof(unsigned long long) > (size_t)hdr.buflen) {
                     abort();
                 }
                 unsigned long long* p_val = (unsigned long long*)&hdr.buf[hdr.offset];
@@ -78,7 +87,7 @@ bool CustomParser(f8::MsgHdr& hdr, google::protobuf::Message* msg)
             break;
         case google::protobuf::FieldDescriptor::CPPTYPE_FLOAT:
             {
-                if (hdr.offset + sizeof(float) < (size_t)hdr.buflen) {
+                if (hdr.offset + sizeof(float) > (size_t)hdr.buflen) {
                     abort();
                 }
                 float* p_val = (float*)&hdr.buf[hdr.offset];
@@ -88,7 +97,7 @@ bool CustomParser(f8::MsgHdr& hdr, google::protobuf::Message* msg)
             break;
         case google::protobuf::FieldDescriptor::CPPTYPE_DOUBLE:
             {
-                if (hdr.offset + sizeof(double) < (size_t)hdr.buflen) {
+                if (hdr.offset + sizeof(double) > (size_t)hdr.buflen) {
                     abort();
                 }
                 double* p_val = (double*)&hdr.buf[hdr.offset];