Re: [PATCH] proc: fix NULL dereference when reading /proc/<pid>/auxv

[Michal Hocko]

On Wed 19-10-16 18:12:08, Oleg Nesterov wrote:
> On 10/19, Michal Hocko wrote:
> >
> > Why would we even want to open that file if there is no mm struct?
> 
> Agreed this is strange, but I am not sure we can change this old
> behaviour. Say, cat /proc/$pid-of-kthread/mem doesn't fail, it shows
> the "empty mm".

What kind of application would break? Anything except for
/proc/self/$file has to handle ESRCH already.
-- 
Michal Hocko
SUSE Labs