From 65c545bff143fb7ebecbf312e0f289f8604f770a Mon Sep 17 00:00:00 2001
From: des <des@FreeBSD.org>
Date: Sun, 22 Sep 2013 23:47:56 +0000
Subject: [PATCH] Always request zeroed memory, in case we're dumb enough to
 leak it later.

Approved by:	re (gjb)
---
 sys/kern/subr_sbuf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/kern/subr_sbuf.c b/sys/kern/subr_sbuf.c
index 68a7b156cb34..1490bc6ebd44 100644
--- a/sys/kern/subr_sbuf.c
+++ b/sys/kern/subr_sbuf.c
@@ -52,11 +52,11 @@ __FBSDID("$FreeBSD$");
 
 #ifdef _KERNEL
 static MALLOC_DEFINE(M_SBUF, "sbuf", "string buffers");
-#define	SBMALLOC(size)		malloc(size, M_SBUF, M_WAITOK)
+#define	SBMALLOC(size)		malloc(size, M_SBUF, M_WAITOK|M_ZERO)
 #define	SBFREE(buf)		free(buf, M_SBUF)
 #else /* _KERNEL */
 #define	KASSERT(e, m)
-#define	SBMALLOC(size)		malloc(size)
+#define	SBMALLOC(size)		calloc(1, size)
 #define	SBFREE(buf)		free(buf)
 #endif /* _KERNEL */