Subject: Re: [PATCH] net-shapers: free rollback entries using kfree_rcu

From: Jakub Kicinski <[email-masked]>
Date: Tue, 31 Mar 2026 18:33:58 -0700

On Tue, 31 Mar 2026 15:41:28 +0800 Kangzheng Gu wrote:
> Jakub Kicinski <[email-masked]> 于2026年3月31日周二 09:15写道：
> > If dump can see NOT_VALID entries we have a bigger problem than a UAF
> > don't you think? :/  
> I am not sure.

Please experiment and return once you are sure.
netdevsim (netdev simulator) driver supports net_shapers, so you can
easily exercise this code in a VM.