[Midnightbsd-cvs] src [8759] trunk/sys/fs/nfs/nfs_commonsubs.c: assert that the mbuf in the chain has a sane length.

[laffer1 at midnightbsd.org]

Revision: 8759
          http://svnweb.midnightbsd.org/src/?rev=8759
Author:   laffer1
Date:     2016-09-25 22:40:48 -0400 (Sun, 25 Sep 2016)
Log Message:
-----------
assert that the mbuf in the chain has a sane length.

Modified Paths:
--------------
    trunk/sys/fs/nfs/nfs_commonsubs.c

Modified: trunk/sys/fs/nfs/nfs_commonsubs.c
===================================================================
--- trunk/sys/fs/nfs/nfs_commonsubs.c	2016-09-26 02:39:51 UTC (rev 8758)
+++ trunk/sys/fs/nfs/nfs_commonsubs.c	2016-09-26 02:40:48 UTC (rev 8759)
@@ -199,6 +199,7 @@
 				}
 				mbufcp = NFSMTOD(mp, caddr_t);
 				len = mbuf_len(mp);
+				KASSERT(len > 0, ("len %d", len));
 			}
 			xfer = (left > len) ? len : left;
 #ifdef notdef