On Sat, Apr 26, 2014 at 07:09:22PM +0200, Laurent Navet wrote: > The strcpy operation may write past the end of the fixed-size destination > buffer if the source buffer is too large. > > Found by coverity scan : CID 144979 > > Signed-off-by: Laurent Navet <laurent.na...@gmail.com> > --- > build tested only > > drivers/staging/line6/audio.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/staging/line6/audio.c b/drivers/staging/line6/audio.c > index 171d80c..65f5cd4 100644 > --- a/drivers/staging/line6/audio.c > +++ b/drivers/staging/line6/audio.c > @@ -32,9 +32,10 @@ int line6_init_audio(struct usb_line6 *line6) > > line6->card = card; > > - strcpy(card->id, line6->properties->id); > + strncpy(card->id, line6->properties->id, (sizeof(card->id)-1)); > strcpy(card->driver, DRIVER_NAME); > - strcpy(card->shortname, line6->properties->name); > + strncpy(card->shortname, line6->properties->name, > + (sizeof(card->shortname)-1)); > /* longname is 80 chars - see asound.h */ > sprintf(card->longname, "Line6 %s at USB %s", line6->properties->name, > dev_name(line6->ifcdev));
Would not it be better to return -EINVAL (or some other error) instead? Now you will possibly truncate the name. -- Mateusz Guzik -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
