From owner-freebsd-bugs  Sat Jan 19 19:56:30 2002
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Date: Sun, 20 Jan 2002 06:56:21 +0300 (MSK)
From: "Serguei E. Leontiev" <leo@sai.msu.ru>
To: <iedowse@FreeBSD.org>
Cc: <freebsd-bugs@FreeBSD.org>
Subject: Re: kern/8206: [patch] Unconected UDP socket declined, if not room
 for prepending IP/UDP header
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Organization: Sternberg Astronomical Institute; Moscow State University
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On Sat, 19 Jan 2002 iedowse@FreeBSD.org wrote:

> Date: Sat, 19 Jan 2002 14:45:27 -0800 (PST)
> From: iedowse@FreeBSD.org
> To: leo@sai.msu.ru, iedowse@FreeBSD.org, freebsd-bugs@FreeBSD.org
> Subject: Re: kern/8206: [patch] Unconected UDP socket declined,
>      if not room for prepending IP/UDP header
>
> Synopsis: [patch] Unconected UDP socket declined, if not room for prepending IP/UDP header
>
> State-Changed-From-To: open->feedback
> State-Changed-By: iedowse
> State-Changed-When: Sat Jan 19 14:45:00 PST 2002

Oh, error correction in Real-Time (latence time - 4 year :)

> State-Changed-Why:
>
> Does this problem still exist in more recent releases?

Probably.

Now this problem located on src/sys/netinet/udp_usrreq.c:719
And source have similar new problem on src/sys/netinet/udp_usrreq.c:757

Short description both problem:

Socket may be "temporary" connected on src/sys/netinet/udp_usrreq.c:704,
if addr != NULL
And socket don't disconnected by error condition and return.

> http://www.FreeBSD.org/cgi/query-pr.cgi?pr=8206

P.S.

Now I don't have test system for experimental checking this (and other
errors), because test system demounting few years ago.

But source code on
<http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet/udp_usrreq.c?annotate=1.100>
have this problem.

P.P.S.

On src/sys/netinet/udp_usrreq.c:759, function make "goto release" without
restore splx(s), if addr != NULL.

-- 
Sorry for my bests English.

Serguei E. Leontiev w:+7(095)939-2382 USSR, Moscow, Universitetskij 13
Sternberg Astronom. w:+7(095)289-4367 USSR, Moscow, 127018, Obraztsova 38
Institute, MSU      h:+7(095)318-1146 USSR, Moscow, 113303, Kakhovka 6-40
                    m:+7(902)686-1081 SMS: <http://www.mts.ru/sms>
                                           <mailto:serge3-sms@mbct.ru>
           <http://lnfm1.sai.msu.ru/~leo>


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