svn commit: r206503 - stable/7/sys/fs/msdosfs

[Andriy Gapon]

Author: avg
Date: Mon Apr 12 20:54:56 2010
New Revision: 206503
URL: http://svn.freebsd.org/changeset/base/206503

Log:
  MFC r206098: mountmsdosfs: reject too high value of bytes per cluster

Modified:
  stable/7/sys/fs/msdosfs/msdosfs_vfsops.c
Directory Properties:
  stable/7/sys/   (props changed)
  stable/7/sys/cddl/contrib/opensolaris/   (props changed)
  stable/7/sys/contrib/dev/acpica/   (props changed)
  stable/7/sys/contrib/pf/   (props changed)

Modified: stable/7/sys/fs/msdosfs/msdosfs_vfsops.c
==============================================================================
--- stable/7/sys/fs/msdosfs/msdosfs_vfsops.c	Mon Apr 12 20:53:17 2010	(r206502)
+++ stable/7/sys/fs/msdosfs/msdosfs_vfsops.c	Mon Apr 12 20:54:56 2010	(r206503)
@@ -558,6 +558,7 @@ mountmsdosfs(struct vnode *devvp, struct
 	  || (pmp->pm_BytesPerSec & (pmp->pm_BytesPerSec - 1))
 	  || (pmp->pm_HugeSectors == 0)
 	  || (pmp->pm_FATsecs == 0)
+	  || (SecPerClust * pmp->pm_BlkPerSec > MAXBSIZE / DEV_BSIZE)
 	) {
 		error = EINVAL;
 		goto error_exit;