Re: [PATCH 01/39] memcg_write_event_control(): fix a user-triggerable oops

Al Viro
2024-07-30T07:18:53Z

On Tue, Jul 30, 2024 at 09:13:38AM +0200, Michal Hocko wrote:
> On Tue 30-07-24 01:15:47, viro@kernel.org wrote:
> > From: Al Viro <viro@zeniv.linux.org.uk>
> >
> > we are *not* guaranteed that anything past the terminating NUL
> > is mapped (let alone initialized with anything sane).
> >
> > [the sucker got moved in mainline]
> >
>
> You could have preserved
> Fixes: 0dea116876ee ("cgroup: implement eventfd-based generic API for notifications")
> Cc: stable
>
> > Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
>
> and
> Acked-by: Michal Hocko <mhocko@suse.com>

Will do; FWIW, I think it would be better off going via the
cgroup tree - it's completely orthogonal to the rest of the
series, the only relation being "got caught during the same
audit"...