Re: [PATCH net v2] net: vlan: fix a UAF in vlan_dev_real_dev()

On Thu, 18 Nov 2021 09:46:24 +0800 Ziyang Xuan (William) wrote:

quoted

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I think we should move the dev_hold() to ndo_init(), otherwise 
it's hard to reason if destructor was invoked or not if
register_netdevice() errors out.  

Ziyang Xuan, do you intend to take care of this?
.  

I am reading the related processes according to the problem scenario.
And I will give a more clear sequence and root cause as soon as possible
by some necessary tests.

Okay, I still don't see the fix. 

Petr would you mind submitting since you have a repro handy?