From 59ec1a562b83a603332840e7f2bb17ede9b2ee84 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tobias=20Frauenschl=C3=A4ger?= <tobias@wolfssl.com>
Date: Wed, 1 Apr 2026 09:33:54 +0200
Subject: [PATCH] Fix CMAC verify error return value

---
 wolfcrypt/src/cmac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wolfcrypt/src/cmac.c b/wolfcrypt/src/cmac.c
index b5e23f85b1..f6c5b990f2 100644
--- a/wolfcrypt/src/cmac.c
+++ b/wolfcrypt/src/cmac.c
@@ -591,7 +591,7 @@ int wc_AesCmacVerify_ex(Cmac* cmac,
                                 devId);
     if (ret == 0) {
         compareRet = ConstantCompare(check, a, (int)min(checkSz, aSz));
-        ret = compareRet ? 1 : 0;
+        ret = compareRet ? MAC_CMP_FAILED_E : 0;
     }
 
     return ret;