Messages in this thread | | | Date | Wed, 2 Jul 2014 09:33:34 -0700 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH] Staging: rtl8192e: Fix potential NULL pointer dereference |
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On Wed, Jul 02, 2014 at 11:25:51AM +0200, Emil Goode wrote: > We need to make sure the struct rtllib_device pointer ieee is not NULL > after the goto rx_dropped label since it is dereferenced there. > > Signed-off-by: Emil Goode <emilgoode@gmail.com> > --- > drivers/staging/rtl8192e/rtllib_rx.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c > index 60de54c..7db3e74 100644 > --- a/drivers/staging/rtl8192e/rtllib_rx.c > +++ b/drivers/staging/rtl8192e/rtllib_rx.c > @@ -1496,7 +1496,8 @@ int rtllib_rx(struct rtllib_device *ieee, struct sk_buff *skb, > return ret; > > rx_dropped: > - ieee->stats.rx_dropped++; > + if (ieee) > + ieee->stats.rx_dropped++; > return 0; > } > EXPORT_SYMBOL(rtllib_rx);
Is this something that is hitting users today in the tree, or is this just a bug you found looking at the code?
thanks,
greg k-h
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