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Date:   Sun, 2 Apr 2017 17:38:28 +0200
From:   Oleg Nesterov <>
To:     "Eric W. Biederman" <>
Cc:     Andrew Morton <>,
        Aleksa Sarai <>,
        Andy Lutomirski <>,
        Attila Fazekas <>,
        Jann Horn <>, Kees Cook <>,
        Michal Hocko <>,
        Ulrich Obergfell <>,,
Subject: Re: [RFC][PATCH 0/2] exec: Fixing ptrace'd mulit-threaded hang

On 04/01, Eric W. Biederman wrote:
> These patches only handle the case when sighand_struct is not
> shared between different multi-threaded processes.

Ah, I didn't read 0/2 when looked at 2/2, so at least you documented this.

> The general
> case is solvable but that is a quite a bit more code.

I don't think so, please see my reply to 2/2.


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