From 0d4e72afe98aa7fa6f7761c9960509278e28233a Mon Sep 17 00:00:00 2001
From: kenjiro <>
Date: Fri, 17 Jul 2026 12:41:52 +0000
Subject: Remove redundant BIO_write() length assertions in b64_write()

b64_write() asserted that BIO_write() does not return more bytes than
requested in two places. Other BIO_write() call sites do not make this
check, and there is no special handling here that depends on asserting this
condition.

ok tb@ beck@ joshua@
---
 src/lib/libcrypto/evp/bio_b64.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/lib/libcrypto/evp/bio_b64.c b/src/lib/libcrypto/evp/bio_b64.c
index 32cd1f06df..61a26df868 100644
--- a/src/lib/libcrypto/evp/bio_b64.c
+++ b/src/lib/libcrypto/evp/bio_b64.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bio_b64.c,v 1.29 2024/04/09 13:52:41 beck Exp $ */
+/* $OpenBSD: bio_b64.c,v 1.30 2026/07/17 12:41:52 kenjiro Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -380,7 +380,6 @@ b64_write(BIO *b, const char *in, int inl)
 			BIO_copy_next_retry(b);
 			return (i);
 		}
-		OPENSSL_assert(i <= n);
 		ctx->buf_off += i;
 		OPENSSL_assert(ctx->buf_off <= (int)sizeof(ctx->buf));
 		OPENSSL_assert(ctx->buf_len >= ctx->buf_off);
@@ -453,7 +452,6 @@ b64_write(BIO *b, const char *in, int inl)
 				BIO_copy_next_retry(b);
 				return ((ret == 0) ? i : ret);
 			}
-			OPENSSL_assert(i <= n);
 			n -= i;
 			ctx->buf_off += i;
 			OPENSSL_assert(ctx->buf_off <= (int)sizeof(ctx->buf));
-- 
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