>Number:         36229
>Category:       bin
>Synopsis:       uninitialized dkwedge_info structure in mount_mfs causes random failures
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Apr 27 06:45:00 +0000 2007
>Originator:     Geoff C. Wing
>Release:        NetBSD 4.99.18
>Organization:
>Environment:
System: NetBSD g.primenet.com.au 4.99.18 NetBSD 4.99.18 (G) #0: Tue Apr 24 18:09:38 EST 2007 gcw@g.primenet.com.au:/usr/netbsd/src/sys/arch/i386/compile/G i386
Architecture: i386
Machine: i386
>Description:
	A dkwedge_info structure in newfs is uninitialized when called as
	mount_mfs

	Later checks for valid structure are against *.dkw_parent[0] (a char)
	being non-zero, so simple 0 fill of structure should suffice

>How-To-Repeat:
	.
>Fix:
	
--- sbin/newfs/newfs.c.org	2006-11-26 19:39:17.000000000 +1100
+++ sbin/newfs/newfs.c	2007-04-27 15:20:23.000000000 +1000
@@ -425,6 +425,7 @@
 		usage();
 
 	memset(&sb, 0, sizeof sb);
+	memset(&dkw, 0, sizeof dkw);
 	special = argv[0];
 	if (Fflag || mfs) {
 		/*