From: Dan Carpenter Date: Wed, 08 Oct 2014 12:46:31 +0000 Subject: Re: [patch] staging: rtl8723au: incorrect use of ether_addr_copy() Message-Id: <20141008124631.GC26918@mwanda> List-Id: References: <20141008104014.GA23096@mwanda> <1412771171.3438.25.camel@joe-AO725> In-Reply-To: <1412771171.3438.25.camel@joe-AO725> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Joe Perches Cc: Larry Finger , Jes Sorensen , Greg Kroah-Hartman , linux-wireless@vger.kernel.org, devel@driverdev.osuosl.org, kernel-janitors@vger.kernel.org On Wed, Oct 08, 2014 at 05:26:11AM -0700, Joe Perches wrote: > On Wed, 2014-10-08 at 13:40 +0300, Dan Carpenter wrote: > > The return from myid() isn't aligned correctly for ether_addr_copy(). > > Hey Dan. > > Actual evidence showing ether_addr_copy conversions > may not always be wise. > > How did you find them? I was just trying to see how common these kinds of bugs are. It didn't take long to find, but my impression is that they are rare and I got lucky. These kinds of bugs are tricky to find and we don't have any tools for it. regards, dan carpenter