Re: [BUG] KFENCE: use-after-free read in udp_tunnel_nic_device_sync_work

From: Eric Dumazet

Date: Wed Jun 24 2026 - 12:51:48 EST


On Wed, Jun 24, 2026 at 9:36 AM Sam Sun <samsun1006219@xxxxxxxxx> wrote:
>

> I tested the refcount version, and I could no longer reproduce the bug with
> the C reproducer. I think this patch fixes the specific lifetime problem
> exposed by the reproducer.
>

Nice, thanks for testing it. I will cook an official patch then.