Module Name: src
Committed By: chs
Date: Tue Aug 3 20:27:08 UTC 2021
Modified Files:
src/sys/kern: uipc_socket.c
Log Message:
in sbsavetimestamp(), initialize struct timeval to 0 with memset() so that
the implicit padding is initialized. this avoids later copying uninitialized
memory out to user space. detected by KMSAN.
To generate a diff of this commit:
cvs rdiff -u -r1.294 -r1.295 src/sys/kern/uipc_socket.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/uipc_socket.c
diff -u src/sys/kern/uipc_socket.c:1.294 src/sys/kern/uipc_socket.c:1.295
--- src/sys/kern/uipc_socket.c:1.294 Fri Dec 11 03:00:09 2020
+++ src/sys/kern/uipc_socket.c Tue Aug 3 20:27:08 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: uipc_socket.c,v 1.294 2020/12/11 03:00:09 thorpej Exp $ */
+/* $NetBSD: uipc_socket.c,v 1.295 2021/08/03 20:27:08 chs Exp $ */
/*
* Copyright (c) 2002, 2007, 2008, 2009 The NetBSD Foundation, Inc.
@@ -71,7 +71,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uipc_socket.c,v 1.294 2020/12/11 03:00:09 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uipc_socket.c,v 1.295 2021/08/03 20:27:08 chs Exp $");
#ifdef _KERNEL_OPT
#include "opt_compat_netbsd.h"
@@ -2432,6 +2432,7 @@ sbsavetimestamp(int opt, struct mbuf **m
struct timeval tv;
int error;
+ memset(&tv, 0, sizeof(tv));
microtime(&tv);
MODULE_HOOK_CALL(uipc_socket_50_sbts_hook, (opt, &mp), enosys(), error);
