From 410c2d0bcc144feb12f0d8a71338cd32edc4fcc9 Mon Sep 17 00:00:00 2001
From: tb <>
Date: Sat, 31 May 2025 11:31:16 +0000
Subject: Plug leak of bm->buf->data

BIO_new(BIO_s_mem()) now allocates this pointer, so we need to free it
before assigning to it.
---
 src/lib/libcrypto/bio/bss_mem.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/lib')

diff --git a/src/lib/libcrypto/bio/bss_mem.c b/src/lib/libcrypto/bio/bss_mem.c
index f977a123a7..0fa6317a2b 100644
--- a/src/lib/libcrypto/bio/bss_mem.c
+++ b/src/lib/libcrypto/bio/bss_mem.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bss_mem.c,v 1.26 2025/05/24 19:45:34 tb Exp $ */
+/* $OpenBSD: bss_mem.c,v 1.27 2025/05/31 11:31:16 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -140,6 +140,7 @@ BIO_new_mem_buf(const void *buf, int buf_len)
 		return NULL;
 
 	bm = bio->ptr;
+	free(bm->buf->data);
 	bm->buf->data = (void *)buf; /* Trust in the BIO_FLAGS_MEM_RDONLY flag. */
 	bm->buf->length = buf_len;
 	bm->buf->max = buf_len;
-- 
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