Re: [PATCH] Libertas: fix buffer overflow in lbs_get_essid()

[Dan Williams]

On Wed, 2009-12-16 at 20:01 -0500, John W. Linville wrote:
> On Thu, Dec 17, 2009 at 07:15:08AM +0800, Daniel Mack wrote:
> > On Wed, Dec 16, 2009 at 08:57:47AM -0800, Dan Williams wrote:
> > > On Wed, 2009-12-16 at 05:12 +0100, Daniel Mack wrote:
> > > > The libertas driver copies the SSID buffer back to the wireless core and
> > > > appends a trailing NULL character for termination. This is
> > > > 
> > > > a) unnecessary because the buffer is allocated with kzalloc and is hence
> > > >    already NULLed when this function is called, and
> > > > 
> > > > b) for priv->curbssparams.ssid_len == 32, it writes back one byte too
> > > >    much which causes memory corruptions.
> > > > 
> > > > Fix this by removing the extra write.
> > > 
> > > Acked-by: Dan Williams <dcbw@xxxxxxxxxx>
> > 
> > Thanks, everyone. Who will care to pick an queue this one?
> 
> Is there some reason it wouldn't be me?

No, it should be you.  Please suck it into your 2.6.33 patchset and
we'll cc to stable when it hits linus I guess.

Dan


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