linux-kernel - Re: [BUG] usb-serial / pl2302 corrupted receive

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:	Tue, 2 Mar 2010 15:53:53 -0800
From:	Greg KH <greg@...ah.com>
To:	Peter Feuerer <peter@...e.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [BUG] usb-serial / pl2302 corrupted receive

On Mon, Mar 01, 2010 at 07:07:00PM +0100, Peter Feuerer wrote:
> Hi Greg,
> 
> I tried to flash an AVR microcontroler via an USB to serial
> converter which uses pl2302 driver. It didn't work, so I set up
> following test to reproduce the bug:
> 
> I connected two pls2302 usb-serial converters to two different
> usb-ports of my machine and connected them with a rs232-nullmodem
> cable to each other.
> 
> Terminal1:
> cat /dev/ttyUSB1
> 
> Terminal2:
> while true; do echo 123456789012345678901234567890 > /dev/ttyUSB0 ; done

cat and echo are known to not work well with usb to serial devices.  Can
you duplicate this with a "real" tty program like minicom or something
else?

thanks,

greg k-h
--
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/