diff -Nur hiredis-0.13.3.orig/async.c hiredis-0.13.3/async.c
--- hiredis-0.13.3.orig/async.c	2015-09-16 18:25:02.000000000 +0800
+++ hiredis-0.13.3/async.c	2020-03-17 11:28:02.927579511 +0800
@@ -69,6 +69,8 @@
 static void *callbackValDup(void *privdata, const void *src) {
     ((void) privdata);
     redisCallback *dup = malloc(sizeof(*dup));
+    if(dup == NULL)
+        abort();
     memcpy(dup,src,sizeof(*dup));
     return dup;
 }
diff -Nur hiredis-0.13.3.orig/dict.c hiredis-0.13.3/dict.c
--- hiredis-0.13.3.orig/dict.c	2015-09-16 18:25:02.000000000 +0800
+++ hiredis-0.13.3/dict.c	2020-03-17 11:29:44.708321131 +0800
@@ -72,6 +72,8 @@
 /* Create a new hash table */
 static dict *dictCreate(dictType *type, void *privDataPtr) {
     dict *ht = malloc(sizeof(*ht));
+    if (ht == NULL)
+        abort();
     _dictInit(ht,type,privDataPtr);
     return ht;
 }
@@ -143,6 +145,8 @@
 
     /* Allocates the memory and stores key */
     entry = malloc(sizeof(*entry));
+    if (entry == NULL)
+        abort();
     entry->next = ht->table[index];
     ht->table[index] = entry;
 
@@ -258,6 +262,8 @@
 static dictIterator *dictGetIterator(dict *ht) {
     dictIterator *iter = malloc(sizeof(*iter));
 
+    if(iter == NULL)
+        abort();
     iter->ht = ht;
     iter->index = -1;
     iter->entry = NULL;