diff --git a/fs/namespace.c b/fs/namespace.c index 72bb1062bfe77886394a79c0822ec141aad55045..b696e3a0d18fcf2d4bb017dcaa36dacb39c565e6 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -886,6 +886,9 @@ static int do_change_type(struct nameidata *nd, int flag) int recurse = flag & MS_REC; int type = flag & ~MS_REC; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + if (nd->dentry != nd->mnt->mnt_root) return -EINVAL;