Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 21 Mar 2003 16:32:51 -0800 | From | Greg KH <> | Subject | Re: [CHECKER] potential dereference of user pointer errors |
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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/
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