[PATCH v2] kni: fix use-after-free when kni release

[Thomas Monjalon]

15/02/2022 20:11, Ferruh Yigit:
> On 2/14/2022 6:41 PM, Ferruh Yigit wrote:
> > On 2/9/2022 7:35 AM, Min Hu (Connor) wrote:
> >> From: Huisong Li <lihuisong at huawei.com>
> >>
> >> The "kni_dev" is the private data of the "net_device" in kni, and allocated
> >> with the "net_device" by calling "alloc_netdev()". The "net_device" is
> >> freed by calling "free_netdev()" when kni release. The freed memory
> >> includes the "kni_dev". So After "kni_dev" should not be accessed after
> >> "net_device" is released.
> >>
> > 
> > The problem description looks valid and change looks good to me,
> > 
> > only list_del after remove is like this for years, I wonder how
> > it is not caught until now, or if we are missing something, I
> > want to test some before ack, which I will do in next few days.
> 
> 
> Acked-by: Ferruh Yigit <ferruh.yigit at intel.com>

Applied, thanks.