Author: trasz
Date: Sat Apr 21 10:45:46 2012
New Revision: 234537
URL: http://svn.freebsd.org/changeset/base/234537
Log:
Fix use-after-free introduced in r234036.
Reviewed by: mckusick
Tested by: pho
Modified:
head/sys/ufs/ffs/ffs_vfsops.c
Modified: head/sys/ufs/ffs/ffs_vfsops.c
==============================================================================
--- head/sys/ufs/ffs/ffs_vfsops.c Sat Apr 21 07:31:27 2012
(r234536)
+++ head/sys/ufs/ffs/ffs_vfsops.c Sat Apr 21 10:45:46 2012
(r234537)
@@ -699,10 +699,14 @@ ffs_reload(struct mount *mp, struct thre
* We no longer know anything about clusters per cylinder group.
*/
if (fs->fs_contigsumsize > 0) {
- lp = fs->fs_maxcluster;
+ fs->fs_maxcluster = lp = space;
for (i = 0; i < fs->fs_ncg; i++)
*lp++ = fs->fs_contigsumsize;
+ space = lp;
}
+ size = fs->fs_ncg * sizeof(u_int8_t);
+ fs->fs_contigdirs = (u_int8_t *)space;
+ bzero(fs->fs_contigdirs, size);
loop:
MNT_VNODE_FOREACH_ALL(vp, mp, mvp) {
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