diff --git a/arm-wt-22k/lib_src/eas_mdls.c b/arm-wt-22k/lib_src/eas_mdls.c
index 876ce9b..fac6987 100644
--- a/arm-wt-22k/lib_src/eas_mdls.c
+++ b/arm-wt-22k/lib_src/eas_mdls.c
@@ -1372,6 +1372,10 @@
         {
             return EAS_SUCCESS;
         }
+        if (sampleLen < sizeof(EAS_SAMPLE)
+            || (pWsmp->loopStart + pWsmp->loopLength) * sizeof(EAS_SAMPLE) > sampleLen - sizeof(EAS_SAMPLE)) {
+            return EAS_FAILURE;
+        }
 
         pSample[(pWsmp->loopStart + pWsmp->loopLength)>>1] = pSample[(pWsmp->loopStart)>>1];
     }