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

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 ox.yeh@mediatek.com

Yuanjia Yeh