From 90959dd1e50ee820e84bed4bc63fbed140298441 Mon Sep 17 00:00:00 2001
From: Mark Johnston <markj@FreeBSD.org>
Date: Fri, 23 Jul 2021 10:29:57 -0400
Subject: [PATCH] acct: Zero pad bytes in accounting records

Reported by:	KMSAN
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
---
 sys/kern/kern_acct.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/kern/kern_acct.c b/sys/kern/kern_acct.c
index 4c1efada10da..ad272676083e 100644
--- a/sys/kern/kern_acct.c
+++ b/sys/kern/kern_acct.c
@@ -349,6 +349,8 @@ acct_process(struct thread *td)
 	if (acct_vp == NULL || acct_suspended)
 		return (0);
 
+	memset(&acct, 0, sizeof(acct));
+
 	sx_slock(&acct_sx);
 
 	/*