diff --git a/src/hotspot/os/aix/libodm_aix.cpp b/src/hotspot/os/aix/libodm_aix.cpp
index 9fe0fb7abd842..854fd5e2b79ba 100644
--- a/src/hotspot/os/aix/libodm_aix.cpp
+++ b/src/hotspot/os/aix/libodm_aix.cpp
@@ -30,6 +30,7 @@
 #include <string.h>
 #include "runtime/arguments.hpp"
 #include "runtime/os.hpp"
+#include "utilities/permitForbiddenFunctions.hpp"
 
 
 dynamicOdm::dynamicOdm() {
@@ -59,7 +60,7 @@ dynamicOdm::~dynamicOdm() {
 }
 
 
-void odmWrapper::clean_data() { if (_data) { free(_data); _data = nullptr; } }
+void odmWrapper::clean_data() { if (_data) { permit_forbidden_function::free(_data); _data = nullptr; } }
 
 
 int odmWrapper::class_offset(const char *field, bool is_aix_5)
diff --git a/src/hotspot/os/aix/loadlib_aix.cpp b/src/hotspot/os/aix/loadlib_aix.cpp
index bc21aef383698..6e2f40768254c 100644
--- a/src/hotspot/os/aix/loadlib_aix.cpp
+++ b/src/hotspot/os/aix/loadlib_aix.cpp
@@ -38,6 +38,7 @@
 #include "logging/log.hpp"
 #include "utilities/debug.hpp"
 #include "utilities/ostream.hpp"
+#include "utilities/permitForbiddenFunctions.hpp"
 
 // For loadquery()
 #include <sys/ldr.h>
@@ -55,7 +56,7 @@ class StringList {
   // Enlarge list. If oom, leave old list intact and return false.
   bool enlarge() {
     int cap2 = _cap + 64;
-    char** l2 = (char**) ::realloc(_list, sizeof(char*) * cap2);
+    char** l2 = (char**) permit_forbidden_function::realloc(_list, sizeof(char*) * cap2);
     if (!l2) {
       return false;
     }
@@ -73,7 +74,9 @@ class StringList {
       }
     }
     assert0(_cap > _num);
+    BEGIN_ALLOW_FORBIDDEN_FUNCTIONS // Temp. until use of forbidden ::strdup fixed.
     char* s2 = ::strdup(s);
+    END_ALLOW_FORBIDDEN_FUNCTIONS
     if (!s2) {
       return nullptr;
     }
@@ -167,7 +170,7 @@ static void free_entry_list(loaded_module_t** start) {
   loaded_module_t* lm = *start;
   while (lm) {
     loaded_module_t* const lm2 = lm->next;
-    ::free(lm);
+    permit_forbidden_function::free(lm);
     lm = lm2;
   }
   *start = nullptr;
@@ -190,7 +193,7 @@ static bool reload_table() {
   uint8_t* buffer = nullptr;
   size_t buflen = 1024;
   for (;;) {
-    buffer = (uint8_t*) ::realloc(buffer, buflen);
+    buffer = (uint8_t*) permit_forbidden_function::realloc(buffer, buflen);
     if (loadquery(L_GETINFO, buffer, buflen) == -1) {
       if (errno == ENOMEM) {
         buflen *= 2;
@@ -210,7 +213,7 @@ static bool reload_table() {
 
   for (;;) {
 
-    loaded_module_t* lm = (loaded_module_t*) ::malloc(sizeof(loaded_module_t));
+    loaded_module_t* lm = (loaded_module_t*) permit_forbidden_function::malloc(sizeof(loaded_module_t));
     if (!lm) {
       log_warning(os)("OOM.");
       goto cleanup;
@@ -226,7 +229,7 @@ static bool reload_table() {
     lm->path = g_stringlist.add(ldi->ldinfo_filename);
     if (!lm->path) {
       log_warning(os)("OOM.");
-      free(lm);
+      permit_forbidden_function::free(lm);
       goto cleanup;
     }
 
@@ -248,7 +251,7 @@ static bool reload_table() {
       lm->member = g_stringlist.add(p_mbr_name);
       if (!lm->member) {
         log_warning(os)("OOM.");
-        free(lm);
+        permit_forbidden_function::free(lm);
         goto cleanup;
       }
     } else {
@@ -296,7 +299,7 @@ static bool reload_table() {
     free_entry_list(&new_list);
   }
 
-  ::free(buffer);
+  permit_forbidden_function::free(buffer);
 
   return rc;
 
diff --git a/src/hotspot/os/aix/os_aix.cpp b/src/hotspot/os/aix/os_aix.cpp
index 26627c2f8fb3b..2d0859a4d5ef7 100644
--- a/src/hotspot/os/aix/os_aix.cpp
+++ b/src/hotspot/os/aix/os_aix.cpp
@@ -74,6 +74,7 @@
 #include "utilities/defaultStream.hpp"
 #include "utilities/events.hpp"
 #include "utilities/growableArray.hpp"
+#include "utilities/permitForbiddenFunctions.hpp"
 #include "utilities/vmError.hpp"
 #if INCLUDE_JFR
 #include "jfr/support/jfrNativeLibraryLoadEvent.hpp"
@@ -364,9 +365,9 @@ static void query_multipage_support() {
   // or by environment variable LDR_CNTRL (suboption DATAPSIZE). If none is given,
   // default should be 4K.
   {
-    void* p = ::malloc(16*M);
+    void* p = permit_forbidden_function::malloc(16*M);
     g_multipage_support.datapsize = os::Aix::query_pagesize(p);
-    ::free(p);
+    permit_forbidden_function::free(p);
   }
 
   // Query default shm page size (LDR_CNTRL SHMPSIZE).
@@ -1406,7 +1407,7 @@ static struct {
 } vmem;
 
 static void vmembk_add(char* addr, size_t size, size_t pagesize, int type) {
-  vmembk_t* p = (vmembk_t*) ::malloc(sizeof(vmembk_t));
+  vmembk_t* p = (vmembk_t*) permit_forbidden_function::malloc(sizeof(vmembk_t));
   assert0(p);
   if (p) {
     MiscUtils::AutoCritSect lck(&vmem.cs);
@@ -1435,7 +1436,7 @@ static void vmembk_remove(vmembk_t* p0) {
   for (vmembk_t** pp = &(vmem.first); *pp; pp = &((*pp)->next)) {
     if (*pp == p0) {
       *pp = p0->next;
-      ::free(p0);
+      permit_forbidden_function::free(p0);
       return;
     }
   }
diff --git a/src/hotspot/os/aix/porting_aix.cpp b/src/hotspot/os/aix/porting_aix.cpp
index 9d91c91bf8ada..2235d3da6864c 100644
--- a/src/hotspot/os/aix/porting_aix.cpp
+++ b/src/hotspot/os/aix/porting_aix.cpp
@@ -1082,7 +1082,7 @@ void* Aix_dlopen(const char* filename, int Flags, int *eno, const char** error_r
       if (g_handletable_used == max_handletable) {
         // No place in array anymore; increase array.
         unsigned new_max = MAX2(max_handletable * 2, init_num_handles);
-        struct handletableentry* new_tab = (struct handletableentry*)::realloc(p_handletable, new_max * sizeof(struct handletableentry));
+        struct handletableentry* new_tab = (struct handletableentry*) permit_forbidden_function::realloc(p_handletable, new_max * sizeof(struct handletableentry));
         assert(new_tab != nullptr, "no more memory for handletable");
         if (new_tab == nullptr) {
           *error_report = "dlopen: no more memory for handletable";