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dostatvfs(): zero the statvfs structure before calling filesystem code, so that

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unset parts would have defined value and not pass random parts of kernel stack
This commit is contained in:
jdolecek 2004-09-13 20:02:20 +00:00
parent c407d0a5ca
commit a6894024dd
1 changed files with 4 additions and 2 deletions
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6
sys/kern/vfs_syscalls.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_syscalls.c,v 1.210 2004/07/01 10:03:30 hannken Exp $ */
/* $NetBSD: vfs_syscalls.c,v 1.211 2004/09/13 20:02:20 jdolecek Exp $ */
/*
* Copyright (c) 1989, 1993
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls.c,v 1.210 2004/07/01 10:03:30 hannken Exp $");
__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls.c,v 1.211 2004/09/13 20:02:20 jdolecek Exp $");
#include "opt_compat_netbsd.h"
#include "opt_compat_43.h"
@ -692,6 +692,8 @@ dostatvfs(struct mount *mp, struct statvfs *sp, struct proc *p, int flags,
goto done;
}
/* Get the filesystem stats now */
memset(sp, 0, sizeof(*sp));
if ((error = VFS_STATVFS(mp, sp, p)) != 0) {
return error;
}