netdev - Re: [PATCH bpf 0/4] bpf: remove __rcu annotations from bpf_prog

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAADnVQLAJ77XS8vfdnszHsw_KcmzrMDvPH0UxVXORN-wjc=rWQ@mail.gmail.com>
Date:   Tue, 14 May 2019 18:25:24 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Stanislav Fomichev <sdf@...ichev.me>
Cc:     Stanislav Fomichev <sdf@...gle.com>,
        Network Development <netdev@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Subject: Re: [PATCH bpf 0/4] bpf: remove __rcu annotations from bpf_prog_array

On Tue, May 14, 2019 at 10:53 AM Stanislav Fomichev <sdf@...ichev.me> wrote:
>
> Existing __rcu annotations don't add anything to the safety.

what do you mean?
BPF_PROG_RUN_ARRAY derefs these pointers under rcu.