Re: [PATCH v5] tee: optee: prevent use-after-free when the client exits before the supplicant

On Mon, Mar 02, 2026 at 01:59:35PM +0100, Jens Wiklander wrote:
> Hi,
> 
> On Wed, Feb 25, 2026 at 8:54 AM Yuanjia Yeh <[email protected]> wrote:
> >
> > Hi all,
> >
> > We can reproduce the reported use-after-free issue on our platform via an
> > overnight reboot test
> >
> > The verifications are listed as the following
> >
> > - With v2 + Michael Wu's patch: Issue resolved.
> > - With v4: Race condition observation and already report to Amir
> > - With v5: Race fixed. Stable in our tests, including:
> >       xtest + reboot loop (300 cycles)
> >       continuous reboot test (1000 cycles)
> >
> >   No regressions observed with v5.
> >
> > If there are no other concerns, we recommend adopting v5.
> >
> > If needed, please add the following tag:
> > Tested-by: Ox Yeh <[email protected]>
> >
> > Yuanjia Yeh
> 
> Thanks for testing. Sumit, with this Tested-by are, you OK with the
> patch? I've tested it locally and it doesn't break anything for me.

Yeah, feel free to add:

Reviewed-by: Sumit Garg <[email protected]>

-Sumit