3 files changed, 16 insertions, 3 deletions
diff --git a/lib/erl_interface/src/connect/ei_resolve.c b/lib/erl_interface/src/connect/ei_resolve.c
index 50c5a4161d..ba8f8fbce3 100644
--- a/lib/erl_interface/src/connect/ei_resolve.c
+++ b/lib/erl_interface/src/connect/ei_resolve.c
@@ -185,7 +185,12 @@ static int verify_dns_configuration(void)
  * align: increment buf until it is dword-aligned, reduce len by same amount.
  * advance:  increment buf by n bytes, reduce len by same amount .
  */
-#define align_buf(buf,len) for (;(((unsigned)buf)&0x3); (buf)++, len--)
+#if defined SIZEOF_VOID_P
+#define ALIGNBYTES (SIZEOF_VOID_P - 1)
+#else
+#define ALIGNBYTES (sizeof(void*) - 1)
+#endif
+#define align_buf(buf,len) for (;(((unsigned)buf) & ALIGNBYTES); (buf)++, len--)
 #define advance_buf(buf,len,n) ((buf)+=(n),(len)-=(n))
 
 /* "and now the tricky part..." */
diff --git a/lib/erl_interface/src/encode/encode_atom.c b/lib/erl_interface/src/encode/encode_atom.c
index 69f2d1451c..b1a4479034 100644
--- a/lib/erl_interface/src/encode/encode_atom.c
+++ b/lib/erl_interface/src/encode/encode_atom.c
@@ -17,13 +17,17 @@
  * %CopyrightEnd%
  */
 #include <string.h>
+#include <limits.h>
 #include "eidef.h"
 #include "eiext.h"
 #include "putget.h"
 
 int ei_encode_atom(char *buf, int *index, const char *p)
 {
-    return ei_encode_atom_len(buf, index, p, strlen(p));
+    size_t len = strlen(p);
+
+    if (len >= INT_MAX) return -1;
+    return ei_encode_atom_len(buf, index, p, len);
 }
 
 int ei_encode_atom_len(char *buf, int *index, const char *p, int len)
diff --git a/lib/erl_interface/src/encode/encode_string.c b/lib/erl_interface/src/encode/encode_string.c
index 1d342cb605..593bbf2b6d 100644
--- a/lib/erl_interface/src/encode/encode_string.c
+++ b/lib/erl_interface/src/encode/encode_string.c
@@ -17,6 +17,7 @@
  * %CopyrightEnd%
  */
 #include <string.h>
+#include <limits.h>
 #include "eidef.h"
 #include "eiext.h"
 #include "putget.h"
@@ -24,7 +25,10 @@
 
 int ei_encode_string(char *buf, int *index, const char *p)
 {
-    return ei_encode_string_len(buf, index, p, strlen(p));
+    size_t len = strlen(p);
+
+    if (len >= INT_MAX) return -1;
+    return ei_encode_string_len(buf, index, p, len);
 }
 
 int ei_encode_string_len(char *buf, int *index, const char *p, int len)