[Tee-dev] Shared memory allocated by tee linux kernel driver is not zeroed out

Hi all,

Looks like the shared memory allocated by linux tee driver (via IOCTL TEE_IOC_SHM_ALLOC) is not zeroed out.

I verified this by modifying tee_client_api.c for checking for non-null bytes in mmap memory in function: TEEC_AllocateSharedMemory.

This could be exploited to leak data.

Is there any reason why it is not Zeroed out? or Am i missing something?

-Best,

Aravind