diff --git a/libs/libc/locale/lib_iconv.c b/libs/libc/locale/lib_iconv.c
index cdd8179750..1a965a9b86 100644
--- a/libs/libc/locale/lib_iconv.c
+++ b/libs/libc/locale/lib_iconv.c
@@ -529,6 +529,11 @@ size_t iconv(iconv_t cd, FAR char **in, FAR size_t *inb,
           case UCS2:
           case UTF_16:
             {
+              if (scd == NULL)
+                {
+                  goto starved;
+                }
+
               l = 0;
               if (!scd->state)
                 {
@@ -551,6 +556,11 @@ size_t iconv(iconv_t cd, FAR char **in, FAR size_t *inb,
 
           case UTF_32:
             {
+              if (scd == NULL)
+                {
+                  goto starved;
+                }
+
               l = 0;
               if (!scd->state)
                 {
@@ -699,6 +709,11 @@ size_t iconv(iconv_t cd, FAR char **in, FAR size_t *inb,
 
                   switch (128 * (c == '$') + d)
                     {
+                    if (scd == NULL)
+                      {
+                        goto starved;
+                      }
+
                       case 'B':
                         {
                           scd->state = 0;
@@ -733,6 +748,11 @@ size_t iconv(iconv_t cd, FAR char **in, FAR size_t *inb,
                   goto ilseq;
                 }
 
+              if (scd == NULL)
+                {
+                  goto starved;
+                }
+
               switch (scd->state)
                 {
                   case 1: