lse, thus the third check "(parms->window < 1 || parms->window > 7)" is done by fault. This third check results true, so that we leave lapb_setparms() by 'goto out_put'. Seems that this bug doesn't cause any problems, because lapb_setparms() isn't used to change the default values of LAPB. We are using kernel lapb in our software project and also change the default parameters of lapb, so we found this bug" He also pasted a fix, that I've transformated into a patch: Signed-off-by: Diego Calleja Signed-off-by: David S. Miller ï