From 263e03748ed882473714a69c1e64f028c68a803d Mon Sep 17 00:00:00 2001
From: Jacob Barthelmeh <jacob@wolfssl.com>
Date: Thu, 8 Jul 2021 15:25:40 +0700
Subject: [PATCH] fix issue of handling partially streamed PKCS7 input

---
 wolfcrypt/src/pkcs7.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/wolfcrypt/src/pkcs7.c b/wolfcrypt/src/pkcs7.c
index b1e40f5da..7358edf44 100644
--- a/wolfcrypt/src/pkcs7.c
+++ b/wolfcrypt/src/pkcs7.c
@@ -4803,6 +4803,7 @@ static int PKCS7_VerifySignedData(PKCS7* pkcs7, const byte* hashBuf,
                     pkiMsg2   = pkiMsg;
                     pkiMsg2Sz = pkiMsgSz;
                 #ifndef NO_PKCS7_STREAM
+                    pkiMsg2Sz = pkcs7->stream->maxLen;
                     pkcs7->stream->varOne = pkiMsg2Sz;
                     pkcs7->stream->flagOne = 1;
                 #endif
@@ -4812,6 +4813,7 @@ static int PKCS7_VerifySignedData(PKCS7* pkcs7, const byte* hashBuf,
                 pkiMsg2 = pkiMsg;
                 pkiMsg2Sz = pkiMsgSz;
             #ifndef NO_PKCS7_STREAM
+                pkiMsg2Sz = pkcs7->stream->maxLen;
                 pkcs7->stream->varOne = pkiMsg2Sz;
                 pkcs7->stream->flagOne = 1;
             #endif