Re: [PATCH net-next 00/12] ptr_ring fixes

From: Jason Wang
Date: Thu Jan 25 2018 - 22:20:59 EST




On 2018å01æ26æ 07:36, Michael S. Tsirkin wrote:
This fixes a bunch of issues around ptr_ring use in net core.
One of these: "tap: fix use-after-free" is also needed on net,
but can't be backported cleanly.

I will post a net patch separately.

Lightly tested - Jason, could you pls confirm this
addresses the security issue you saw with ptr_ring?
Testing reports would be appreciated too.

With the reproducer provided by syzbot, the problem has been fixed.

Thanks