@@ -160,7 +160,7 @@ xfs_nfs_get_inode(
}
}
- if (VFS_I(ip)->i_generation != generation) {
+ if (VFS_I(ip)->i_generation != generation || IS_PRIVATE(VFS_I(ip))) {
xfs_irele(ip);
return ERR_PTR(-ESTALE);
}
@@ -365,6 +365,9 @@ xfs_vn_link(
if (unlikely(error))
return error;
+ if (IS_PRIVATE(inode))
+ return -EPERM;
+
error = xfs_link(XFS_I(dir), XFS_I(inode), &name);
if (unlikely(error))
return error;
@@ -97,6 +97,14 @@ xfs_bulkstat_one_int(
vfsuid = i_uid_into_vfsuid(idmap, inode);
vfsgid = i_gid_into_vfsgid(idmap, inode);
+ /* If this is a private inode, don't leak its details to userspace. */
+ if (IS_PRIVATE(inode)) {
+ xfs_iunlock(ip, XFS_ILOCK_SHARED);
+ xfs_irele(ip);
+ error = -EINVAL;
+ goto out_advance;
+ }
+
/* xfs_iget returns the following without needing
* further change.
*/