linux-kernel - 2.4/2.6 local TCP connect oddity

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-next>] [day] [month] [year] [list]

Message-ID: <20071021175337.605e843e@shodan.orpak.com>
Date:	Sun, 21 Oct 2007 17:53:37 +0200
From:	Tal Kelrich <tal@...icgenome.com>
To:	linux-kernel@...r.kernel.org
Subject: 2.4/2.6 local TCP connect oddity

Hi,

I've run into a problem where a process trying to connect to a local
port within the local port range eventually ends up connected to itself,
with source port = dest port.

similar behavior can be gotten by running netcat as follows:
nc -p 1025 localhost 1025

I'm not really sure if that's a bug, but the original case was at least
unexpected.

Regards,
	Tal Kelrich

-- 
Tal Kelrich
PGP fingerprint: 3EDF FCC5 60BB 4729 AB2F  CAE6 FEC1 9AAC 12B9 AA69
Key Available at: http://www.hasturkun.com/pub.txt
----
Administration:  An ingenious abstraction in politics, designed to
receive the kicks and cuffs due to the premier or president.
-- Ambrose Bierce
----

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/