From: Stefano Brivio <sbrivio@redhat.com>
To: Paul Holzinger <pholzing@redhat.com>
Cc: passt-dev@passt.top
Subject: Re: [PATCH] pasta: do not leak netlink sock into child
Date: Mon, 13 Feb 2023 02:15:11 +0100 [thread overview]
Message-ID: <20230213021511.6c866cef@elisabeth> (raw)
In-Reply-To: <20230207151046.76157-1-pholzing@redhat.com>
On Tue, 7 Feb 2023 16:10:46 +0100
Paul Holzinger <pholzing@redhat.com> wrote:
> When spawning a child command with pasta command... pasta should not
> leak fds that it opened. Only the fds that were already open should be
> given to the child.
>
> Run `pasta --config-net -- ls -l /proc/self/fd` from a terminal where
> only stdin/out/err are open. The fd 3 was opend by ls to read the
> /proc/self/fd dir. But fd 5 is the netlink socket that was opend in
> pasta. To prevent such a leak we will open the socket with SOCK_CLOEXEC.
>
> Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Applied.
--
Stefano
prev parent reply other threads:[~2023-02-13 1:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-07 15:10 [PATCH] pasta: do not leak netlink sock into child Paul Holzinger
2023-02-08 13:00 ` Stefano Brivio
2023-02-13 1:15 ` Stefano Brivio [this message]
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