bugfix: fix featureGroup

- allocate memory, memory on stack does not survive the function
- avoid uint32_t, use a char buffer, for endianness neutrality

openair2/RRC/LITE/MESSAGES/asn1_msg.c

@@ -2577,15 +2577,14 @@ OAI_UECapability_t *fill_ue_capability(char *UE_EUTRA_Capability_xer_fname)
     // UE_EUTRA_Capability->measParameters.bandListEUTRA.list.count                         = 0;  // no measurements on other bands
     // UE_EUTRA_Capability->featureGroupIndicators  // null
 
-    // featureGroup is mandatory for CMW tests
-    // featureGroup is filled only for usim-test mode
-    BIT_STRING_t *bit_string;
-    uint32_t     featrG;
-    bit_string = CALLOC(1, sizeof(*bit_string));
-    featrG     = 0x04000800;
     if(usim_test == 1)
     {
-        bit_string->buf         = &featrG;
+      // featureGroup is mandatory for CMW tests
+      // featureGroup is filled only for usim-test mode
+      BIT_STRING_t *bit_string = CALLOC(1, sizeof(*bit_string));
+      char featrG[4]           = { 0x00, 0x08, 0x00, 0x04 };
+      bit_string->buf          = CALLOC(1, 4);
+      memcpy(bit_string->buf, featrG, 4);
       bit_string->size         = 4;
       bit_string->bits_unused  = 0;
       UE_EUTRA_Capability->featureGroupIndicators = bit_string;