netdev - Re: [PATCH bpf 1/2] bpf: fix out of bounds backwards jmps due to dead code removal

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Message-ID: <CAADnVQLanwjQOp5QBEQCB-AWP6Q3ZEjk+EOJ4CF1HLBc1dwSpA@mail.gmail.com>
Date:   Fri, 10 May 2019 18:52:27 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        bpf <bpf@...r.kernel.org>,
        Network Development <netdev@...r.kernel.org>
Subject: Re: [PATCH bpf 1/2] bpf: fix out of bounds backwards jmps due to dead
 code removal

On Fri, May 10, 2019 at 6:03 PM Daniel Borkmann <daniel@...earbox.net> wrote:
>
> systemtap folks reported the following splat recently:
...
> Note that unprivileged case is not affected from this.
>
> Fixes: 52875a04f4b2 ("bpf: verifier: remove dead code")
> Fixes: 2cbd95a5c4fb ("bpf: change parameters of call/branch offset adjustment")
> Reported-by: Frank Ch. Eigler <fche@...hat.com>
> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
> Reviewed-by: Jakub Kicinski <jakub.kicinski@...ronome.com>

Applied. Thanks!