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Date:   Mon, 9 Nov 2020 08:54:10 +0100
From:   Willy Tarreau <w@1wt.eu>
To:     Amit Klein <aksecurity@gmail.com>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        Eric Dumazet <edumazet@google.com>,
        "Jason A. Donenfeld" <Jason@zx2c4.com>,
        Andy Lutomirski <luto@kernel.org>,
        Kees Cook <keescook@chromium.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>,
        Linus Torvalds <torvalds@linux-foundation.org>, tytso@mit.edu,
        Florian Westphal <fw@strlen.de>,
        Marc Plumb <lkml.mplumb@gmail.com>,
        George Spelvin <lkml@sdf.org>, Sasha Levin <sashal@kernel.org>
Subject: Re: [PATCH 5.9 639/757] random32: make prandom_u32() output
 unpredictable
Message-ID: <20201109075410.GA13916@1wt.eu>
References: <20201027135450.497324313@linuxfoundation.org>
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 <CANEQ_++-8QMfvLCQtFLOy8dF1LP_+UUOkRTG2y8Jn5bteS3B8Q@mail.gmail.com>
 <20201109062012.GA48368@kroah.com>
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On Mon, Nov 09, 2020 at 08:54:13AM +0200, Amit Klein wrote:
> Unfortunately, I'm just a security researcher, not a kernel developer...
> 
> Does that mean you don't plan to back-port the patch?

I could possibly have a look, but quite frankly I'm not convinced that we
need to backport this at all. I think that what we've done is mostly to be
future-proof and that the likelihood of practical attacks against live
systems with the previous fix are close to zero.

Cheers,
Willy