linux-kernel - Re: [git pull] coredump infoleak fix

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Message-ID: <CAHk-=wi3dVgSn8xMC2Uqs8aahFfeqO0Wue2KqxnDYrbBM+6uZQ@mail.gmail.com>
Date:   Thu, 28 May 2020 12:09:48 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Al Viro <viro@...iv.linux.org.uk>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>
Subject: Re: [git pull] coredump infoleak fix

On Thu, May 28, 2020 at 12:06 PM Al Viro <viro@...iv.linux.org.uk> wrote:
>
> It doesn't fix all problems, though - you don't get an infoleak, but
> you do get incorrect data...

Oh, I'm not saying it should replace any fix to regset->get(). I'm
just saying it is in addition to.

So if a regset has a reason to return less than the asked-for data, it
can do so and there's no leak.

               Linus