From d3314f142a8dbe5f855a1054159926d1e5d992cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Kin=C4=8Dl?= <mkincl@ra.rockwell.com>
Date: Wed, 3 Mar 2021 21:04:51 +0100
Subject: [PATCH] Fixed CID 576946.

---
 wolfcrypt/src/asn.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index fe2799478..f3c282907 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -4173,7 +4173,13 @@ int EncryptContent(byte* input, word32 inputSz, byte* out, word32* outSz,
     seqSz += sz;
 
     tmpIdx = 0;
-    seqSz += SetShortInt(shr, &tmpIdx, itt, maxShr);
+    ret = SetShortInt(shr, &tmpIdx, itt, maxShr);
+    if (ret >= 0) {
+        seqSz += ret;
+    }
+    else {
+        return ret;
+    }
     innerSz += seqSz + SetSequence(seqSz, seq);
     totalSz += innerSz + SetSequence(innerSz, seq);