lkml.org 
[lkml]   [2003]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [CHECKER] potential dereference of user pointer errors
On Fri, Mar 21, 2003 at 04:15:50PM -0800, Chris Wright wrote:
> * Junfeng Yang (yjf@stanford.edu) wrote:
> >
> > [MINOR] in debug data
> >
> > /home/junfeng/linux-2.5.63/drivers/usb/serial/kobil_sct.c:429:kobil_write:
> > ERROR:TAINTED deferencing "buf" tainted by [dist=0][copy_from_user:parm1]
>
> This is a bug, which could print kernel data if debugging was enabled.
> Greg, any reason the debug info can't just use the priv->buf?

Ugh, that's pretty bad. That whole chunk of debug code should just be
replaced with a call to usb_serial_debug_data() like the other
usb-serial drivers do.

Patches welcomed :)

thanks,

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

\
 
 \ /
  Last update: 2005-03-22 13:34    [W:0.166 / U:2.264 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site