linux-kernel - Re: epoll and shared fd's

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, 28 Feb 2008 08:53:08 -0500
From:	Valdis.Kletnieks@...edu
To:	7eggert@....de
Cc:	Michael Kerrisk <mtk.manpages@...glemail.com>,
	Davide Libenzi <davidel@...ilserver.org>,
	Pierre Habouzit <madcoder@...ian.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Eric Dumazet <dada1@...mosbay.com>,
	Marc Lehmann <schmorp@...morp.de>,
	David Schwartz <davids@...master.com>
Subject: Re: epoll and shared fd's

On Tue, 26 Feb 2008 19:16:30 +0100, Bodo Eggert said:
> Michael Kerrisk <mtk.manpages@...glemail.com> wrote:

> >               file  handle  have  been  closed.  This means that
> >               even after a file descriptor that is  part  of  an
> >               epoll  set has been closed, events may be reported
> >               for that file descriptor if other file descriptors
> >               referring  to the same underlying file description
> >               remain open.

Is it worth making special mention of the case where a process gets events
for a FD that it has closed, because a parent or child process still has
an inherited copy of the FD still open?

Content of type "application/pgp-signature" skipped