1 files changed, 6 insertions, 0 deletions

diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 01939ba2d8de..993f5720200a 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -468,6 +468,12 @@ xfs_attrlist_by_handle(
         if (al_hreq.buflen > XATTR_LIST_MAX)
                 return -XFS_ERROR(EINVAL);
 
+        /*
+         * Reject flags, only allow namespaces.
+         */
+        if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
+                return -XFS_ERROR(EINVAL);
+
         error = xfs_vget_fsop_handlereq(mp, parinode, &al_hreq.hreq, &inode);
         if (error)
                 goto out;