Re: + proc-clean-up-proc-pid-environ-handling.patch added to -mmtree

[Cong Wang]

On 02/08/2012 11:15 PM, Oleg Nesterov wrote:
> > From: Cong Wang<xiyou.wangcong@xxxxxxxxx>
> > Subject: proc: clean up /proc/<pid>/environ handling
> >
> > Similar to e268337dfe2 ("proc: clean up and fix /proc/<pid>/mem
> > handling"),
>
> and has the same problem,
>
> > move the check of permission to open(), this will simplify
> > read() code.
>
> but allows to kill the system trivially.
>
> Please look at 6d08f2c7139790c268820a2e590795cb8333181a
> "proc: make sure mem_open() doesn't pin the target's memory"

Thanks, I wasn't aware of that commit. I will send an updated patch soon.

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