Messages in this thread | | | Date | Thu, 30 Sep 2021 15:06:40 +0200 | From | Alexey Gladkov <> | Subject | Re: linux 5.14.3: free_user_ns causes NULL pointer dereference |
| |
On Wed, Sep 29, 2021 at 09:39:06PM +0000, Jordan Glover wrote: > > I'm still investigating, but I would like to rule out one option. > > > > Could you check out the patch? > > > Thx, I added it to my kernel and will report in few days. > Does this patch try to fix the issue or make it easier to track?
I suspect the error is caused by a race between allow_ucounts() and put_ucounts(). I think this patch could solve the problem.
-- Rgrds, legion
| |