netdev - Re: [PATCH bpf-next] bpf: cpumap: fix possible rcpu kthread hung

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: <a77cf1a2-6dc8-0a3c-3bb8-d2d9681ccb8f@gmail.com>
Date:   Mon, 20 Jul 2020 09:45:29 -0600
From:   David Ahern <dsahern@...il.com>
To:     Jakub Sitnicki <jakub@...udflare.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org, davem@...emloft.net,
        ast@...nel.org, brouer@...hat.com, daniel@...earbox.net,
        lorenzo.bianconi@...hat.com, kuba@...nel.org
Subject: Re: [PATCH bpf-next] bpf: cpumap: fix possible rcpu kthread hung

On 7/20/20 3:14 AM, Jakub Sitnicki wrote:
> I realize it's a code move, but fd == 0 is a valid descriptor number.

this follows the decision made for devmap entries in that fd == 0 is NOT
a valid program fd.