From 002f2c1a470c25aa3cc0163b13c026077453afce Mon Sep 17 00:00:00 2001
From: Amaury M <1293565+amaurym@users.noreply.github.com>
Date: Thu, 22 Jul 2021 19:42:56 +0200
Subject: [PATCH] Check wireType too

---
 x/auth/tx/decoder.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/x/auth/tx/decoder.go b/x/auth/tx/decoder.go
index d1b753cf23df..d93c7446db60 100644
--- a/x/auth/tx/decoder.go
+++ b/x/auth/tx/decoder.go
@@ -101,11 +101,13 @@ func rejectNonADR027(txBytes []byte) error {
 	prevTagNum := protowire.Number(0)
 
 	for len(txBytes) > 0 {
-		tagNum, _, m := protowire.ConsumeTag(txBytes)
+		tagNum, wireType, m := protowire.ConsumeTag(txBytes)
 		if m < 0 {
 			return fmt.Errorf("invalid length; %w", protowire.ParseError(m))
 		}
-
+		if wireType != protowire.BytesType {
+			return fmt.Errorf("expected %d wire type, got %d", protowire.VarintType, wireType)
+		}
 		if tagNum < prevTagNum {
 			return fmt.Errorf("txRaw must follow ADR-027, got tagNum %d after tagNum %d", tagNum, prevTagNum)
 		}