K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2016-07-15T09:23:18.881632Z
K 7
svn:log
V 449
Do not allow creation of char or block special nodes with VNOVAL dev_t.

As was reported on http://seclists.org/oss-sec/2016/q3/68, tmpfs code
contains assertion that rdev != VNOVAL.  On FreeBSD, there is no other
consequences except triggering the assert.  To be compatible with
systems where device nodes have some significance, reject mknod(2)
call with dev == VNOVAL at the syscall level.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

END