Re: rtlwifi: rtl8192c_common: "BUG: KASAN: slab-out-of-bounds"

Dmitry Osipenko
2017-02-04T19:33:04Z

On 04.02.2017 21:41, Larry Finger wrote:
> On 02/04/2017 10:58 AM, Dmitry Osipenko wrote:
>> Seems the problem is caused by rtl92c_dm_*() casting .priv to "struct
>> rtl_pci_priv", while it is "struct rtl_usb_priv".
>
> Those routines are shared by rtl8192ce and rtl8192cu, thus we need to make that
> difference in cast to be immaterial. I think we need to move "struct
> bt_coexist_info" to the beginning of both rtlpci_priv and rtl_usb_priv. Then it
> should not matter.
>
> I do not have a gcc version new enough to turn KASAN testing on, thus the
> attached patch is only compile tested. Does it fix the problem?

Thank you for the patch, it indeed fixes the bug.

I noticed that struct rtl_priv contains .btcoexist, isn't it duplicated in the
struct rtl_pci_priv?

--
Dmitry