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]
Date:   Thu, 30 Nov 2023 20:43:18 +0100
From:   Florian Weimer <fweimer@...hat.com>
To:     Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:     Tycho Andersen <tycho@...ho.pizza>,
        Christian Brauner <brauner@...nel.org>,
        Oleg Nesterov <oleg@...hat.com>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        Tycho Andersen <tandersen@...flix.com>
Subject: Re: [RFC 1/3] pidfd: allow pidfd_open() on non-thread-group leaders

* Mathieu Desnoyers:

>>> I'd like to offer a userspace API which allows safe stashing of
>>> unreachable file descriptors on a service thread.

>> By "safe" here do you mean not accessible via pidfd_getfd()?

No, unreachable by close/close_range/dup2/dup3.  I expect we can do an
intra-process transfer using /proc, but I'm hoping for something nicer.

Thanks,
Florian

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ