netdev - Re: can: expected receive behavior broken

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:	Wed, 28 Jul 2010 10:23:24 +0200
From:	Matthias Fuchs <matthias.fuchs@....eu>
To:	Wolfgang Grandegger <wg@...ndegger.com>
Cc:	Linux Netdev List <netdev@...r.kernel.org>,
	Socketcan-core@...ts.berlios.de
Subject: Re: can: expected receive behavior broken

plx_pci/sja1000 + esd_usb2

Should be easy to reproduce.

Matthias

On Wednesday 28 July 2010 10:17, Wolfgang Grandegger wrote:
> On 07/28/2010 09:56 AM, Matthias Fuchs wrote:
> > Hi,
> > 
> > I just noticed that the receive behavior of CAN sockets is broken
> > in current net-next-2.6.
> > I wrote some simple code that receives messages and echos them back to
> > the bus. When I now trigger one single message on the bus, I get
> > this message received and echoed back in an endless loop.
> > 
> > I do not touch the sockopts CAN_RAW_LOOPBACK or CAN_RAW_RECV_OWN_MSGS in my code.
> > Only (!) setting CAN_RAW_LOOPBACK to 0 helps at the moment. But this behavior
> > actually has nothing to do with LOOPBACK but more with RECV_OWN_MSGS.
> 
> Sounds wired! What driver are you using?
> 
> Wolfgang.
> 
> 
> 
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html