On Thu, 14 Sept 2023 at 22:40, Paul Moore <paul@xxxxxxxxxxxxxx> wrote: > > On Wed, Sep 13, 2023 at 11:23 AM Miklos Szeredi <mszeredi@xxxxxxxxxx> wrote: > ... > > > +static int do_statmnt(struct stmt_state *s) > > +{ > > + struct statmnt *sm = &s->sm; > > + struct mount *m = real_mount(s->mnt); > > + > > + if (!capable(CAP_SYS_ADMIN) && > > + !is_path_reachable(m, m->mnt.mnt_root, &s->root)) > > + return -EPERM; > > I realize statmnt() is different from fstatfs(), but from an access > control perspective they look a lot alike to me which is why I think > we should probably have a security_sb_statfs() call here. Same thing > for the listmnt() syscall in patch 3/3. Okay, makes sense. Thanks, Miklos