From f356be5d1f96ab17f5225aa2d978f13aca1046cf Mon Sep 17 00:00:00 2001
From: Egor Pugin <egor.pugin@gmail.com>
Date: Sat, 1 Feb 2025 17:37:21 +0300
Subject: [PATCH] Fix misuse of TLSX_KeyShare_Find()

TLSX_KeyShare_Find() returns 1 on success and condition has incorrect non-inverted logic.
---
 src/tls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tls.c b/src/tls.c
index b74b8be8e0..6e74fcb148 100644
--- a/src/tls.c
+++ b/src/tls.c
@@ -9277,7 +9277,7 @@ int TLSX_KeyShare_Parse(WOLFSSL* ssl, const byte* input, word16 length,
             }
 
             /* Check if the group was sent. */
-            if (TLSX_KeyShare_Find(ssl, group)) {
+            if (!TLSX_KeyShare_Find(ssl, group)) {
                 WOLFSSL_ERROR_VERBOSE(BAD_KEY_SHARE_DATA);
                 return BAD_KEY_SHARE_DATA;
             }