[PATCH] Libertas: fix buffer overflow in lbs_get_essid()
John W. Linville
linville at tuxdriver.com
Wed Dec 16 20:01:15 EST 2009
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 at redhat.com>
> Thanks, everyone. Who will care to pick an queue this one?
Is there some reason it wouldn't be me?
John W. Linville Someday the world will need a hero, and you
linville at tuxdriver.com might be all we have. Be ready.
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