From: Arran Cudbard-Bell <a.cudbardb@freeradius.org>
Date: Thu, 15 Apr 2021 20:23:03 +0000 (-0500)
Subject: Or just set inlen correctly when in is NULL
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6299664ad821be07ce8a398f19ef077c7ec2a41a;p=thirdparty%2Ffreeradius-server.git

Or just set inlen correctly when in is NULL
---

diff --git a/src/lib/util/md5.c b/src/lib/util/md5.c
index 31180ce52fe..0b9488b7cf3 100644
--- a/src/lib/util/md5.c
+++ b/src/lib/util/md5.c
@@ -461,7 +461,10 @@ static void fr_md5_local_update(fr_md5_ctx_t *ctx, uint8_t const *in, size_t inl
 	 *	ubsan doesn't like arithmetic on
 	 *	NULL pointers.
 	 */
-	if (!in) in = (uint8_t[MD5_BLOCK_LENGTH]){ 0x00 };
+	if (!in) {
+		in = (uint8_t[]){ 0x00 };
+		inlen = 0;
+	}
 
 	/* Check how many bytes we already have and how many more we need. */
 	have = (size_t)((ctx_local->count[0] >> 3) & (MD5_BLOCK_LENGTH - 1));