Re: [PATCH] staging: rtl8188eu: core: rtw_wlan_util.c: Fix for NULL dereference

From: Julia Lawall
Date: Mon Jan 26 2015 - 11:06:56 EST




On Mon, 26 Jan 2015, Julia Lawall wrote:

> On Mon, 26 Jan 2015, Kumar Amit Mehta wrote:
>
> > In rtw_check_bcn_info(), check the return value of kzalloc() before
> > dereferencing it, to avoid NULL pointer dereference.
> >
> > Signed-off-by: Kumar Amit Mehta <gmate.amit@xxxxxxxxx>
> > ---
> > drivers/staging/rtl8188eu/core/rtw_wlan_util.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
> > index 3e9b6e9..a3ffc69 100644
> > --- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
> > +++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
> > @@ -931,6 +931,8 @@ int rtw_check_bcn_info(struct adapter *Adapter, u8 *pframe, u32 packet_len)
> > }
> >
> > bssid = kzalloc(sizeof(struct wlan_bssid_ex), GFP_ATOMIC);
> > + if (!bssid)
> > + return _FAIL;
>
> I haven't looked at this issue in a while, but shouldn't this be
> OBD_ALLOC?

Sorry for the noise. I assumed that both patches were for lustre, but
this one is not.

julia
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