linux-kernel - Re: [PATCH bpf-next] bpf/bpftool: add unprivileged_bpf

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: <CACYkzJ49NibikDxgq9BudWu6ieW4ZkiEWCy_yAsJUFtEiS9CEg@mail.gmail.com>
Date:   Tue, 22 Mar 2022 18:39:13 +0100
From:   KP Singh <kpsingh@...nel.org>
To:     Quentin Monnet <quentin@...valent.com>
Cc:     Milan Landaverde <milan@...verde.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        Paul Chaignon <paul@...valent.com>,
        Niklas Söderlund <niklas.soderlund@...igine.com>,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next] bpf/bpftool: add unprivileged_bpf_disabled check
 against value of 2

On Tue, Mar 22, 2022 at 4:54 PM Quentin Monnet <quentin@...valent.com> wrote:
>
> 2022-03-22 10:49 UTC-0400 ~ Milan Landaverde <milan@...verde.com>
> > In [1], we added a kconfig knob that can set
> > /proc/sys/kernel/unprivileged_bpf_disabled to 2
> >
> > We now check against this value in bpftool feature probe
> >
> > [1] https://lore.kernel.org/bpf/74ec548079189e4e4dffaeb42b8987bb3c852eee.1620765074.git.daniel@iogearbox.net
> >
> > Signed-off-by: Milan Landaverde <milan@...verde.com>
>
> Acked-by: Quentin Monnet <quentin@...valent.com>

Acked-by: KP Singh <kpsingh@...nel.org>

Thanks, this is very useful!