[src/trunk]: src/sys/compat/linux/common Fix info leaks.

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/92b8921d18f4
branches:  trunk
changeset: 964955:92b8921d18f4
user:      maxv <maxv%NetBSD.org@localhost>
date:      Fri Aug 23 13:36:45 2019 +0000

description:
Fix info leaks.

diffstat:

 sys/compat/linux/common/linux_statfs.h |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (43 lines):

diff -r f7e83ed5677a -r 92b8921d18f4 sys/compat/linux/common/linux_statfs.h
--- a/sys/compat/linux/common/linux_statfs.h    Fri Aug 23 12:49:59 2019 +0000
+++ b/sys/compat/linux/common/linux_statfs.h    Fri Aug 23 13:36:45 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: linux_statfs.h,v 1.6 2012/09/13 13:59:33 pooka Exp $   */
+/*     $NetBSD: linux_statfs.h,v 1.7 2019/08/23 13:36:45 maxv Exp $    */
 
 /*-
  * Copyright (c) 1995, 1998, 1999 The NetBSD Foundation, Inc.
@@ -48,6 +48,8 @@
 {
        int i;
 
+       memset(lsp, 0, sizeof(*lsp));
+
        for (i = 0; i < linux_fstypes_cnt; i++) {
                if (strcmp(bsp->f_fstypename, linux_fstypes[i].mty_bsd) == 0) {
                        lsp->l_ftype = linux_fstypes[i].mty_linux;
@@ -82,7 +84,6 @@
        lsp->l_ffsid.val[0] = bsp->f_fsidx.__fsid_val[0];
        lsp->l_ffsid.val[1] = bsp->f_fsidx.__fsid_val[1];
        lsp->l_fnamelen = bsp->f_namemax;
-       (void)memset(lsp->l_fspare, 0, sizeof(lsp->l_fspare));
 }
 
 /*
@@ -96,6 +97,8 @@
 {
        int i, div;
 
+       memset(lsp, 0, sizeof(*lsp));
+
        for (i = 0; i < linux_fstypes_cnt; i++) {
                if (strcmp(bsp->f_fstypename, linux_fstypes[i].mty_bsd) == 0) {
                        lsp->l_ftype = linux_fstypes[i].mty_linux;
@@ -121,7 +124,6 @@
        lsp->l_ffsid.val[0] = bsp->f_fsidx.__fsid_val[0];
        lsp->l_ffsid.val[1] = bsp->f_fsidx.__fsid_val[1];
        lsp->l_fnamelen = bsp->f_namemax;
-       (void)memset(lsp->l_fspare, 0, sizeof(lsp->l_fspare));
 }
 
 #endif /* !_LINUX_STATFS_H */