Hello arm-soc maintainers,
Please pull these TEE subsystem and OP-TEE driver fixes which by coincident all are concerning memory shared with secure world.
There's one in particular nasty race fixed when a tee_shm is about to be teared down.
Thanks, Jens
The following changes since commit d58071a8a76d779eedab38033ae4c821c30295a5:
Linux 5.16-rc3 (2021-11-28 14:09:19 -0800)
are available in the Git repository at:
https://git.linaro.org/people/jens.wiklander/linux-tee.git tags/fixes-for-v5.16
for you to fetch changes up to 6add87fdae9bcb1d20b4503df5bd02ce5246cc8b:
optee: Suppress false positive kmemleak report in optee_handle_rpc() (2021-12-16 15:32:48 +0100)
---------------------------------------------------------------- TEE and OP-TEE fixes for v5.16
- Fixes a race when a tee_shm reaches reference count 0 and is about to be teared down - Fixes an incorrect page free bug in an error path of the OP-TEE shared memory pool handling - Suppresses a false positive kmemleak report when allocating driver private shared memory buffers for OP-TEE
---------------------------------------------------------------- Jens Wiklander (1): tee: handle lookup of shm with reference count 0
Sumit Garg (1): tee: optee: Fix incorrect page free bug
Xiaolei Wang (1): optee: Suppress false positive kmemleak report in optee_handle_rpc()
drivers/tee/optee/core.c | 6 +- drivers/tee/optee/smc_abi.c | 2 + drivers/tee/tee_shm.c | 174 +++++++++++++++++--------------------------- include/linux/tee_drv.h | 4 +- 4 files changed, 72 insertions(+), 114 deletions(-)