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References: <cover.1326673414.git.luto@amacapital.net> <7bed6cc87d8f388269a73b1a9a4c9ebd6ac333da.1326673414.git.luto@amacapital.net>
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From: Andy Lutomirski <luto@amacapital.net>
Date: Mon, 16 Jan 2012 12:15:43 -0800
Message-ID: <CALCETrXX6E8iSrek_dMjWPxBso142NLe3FObwsW_EJjNdZ4-uw@mail.gmail.com>
Subject: Re: [PATCH v2 1/4] Add PR_{GET,SET}_NO_NEW_PRIVS to prevent execve
 from granting privs
To: Oleg Nesterov <oleg@redhat.com>
Cc: Casey Schaufler <casey@schaufler-ca.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Jamie Lokier <jamie@shareable.org>, Will Drewry <wad@chromium.org>,
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On Mon, Jan 16, 2012 at 9:33 AM, Oleg Nesterov <oleg@redhat.com> wrote:
> On 01/15, Andy Lutomirski wrote:
>>
>> --- a/kernel/fork.c
>> +++ b/kernel/fork.c
>> @@ -1117,6 +1117,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
>>       if (retval < 0)
>>               goto bad_fork_free;
>>
>> +     p->no_new_privs = current->no_new_privs;
>
> Again, this is unneeded, ->no_new_privs was copied by dup_task_struct().

Yeah, sorry.  Will fix in v3.

--Andy