Re: [PATCH 0/2] firmware: stratix10-svc: fix kaddr dangling pointers and populate kaddr1

[Dinh Nguyen <dinguyen@kernel.org>]

On 5/26/26 15:35, Adrian Ng Ho Yin wrote:
> kaddr1/2/3 in the stratix10 service layer are set to addresses of local
> arm_smccc_res fields that go out of scope when the setting function returns,
> leaving dangling pointers in the callback data.
> 
> Patch 1 fixes this by adding a1/a2/a3 scratch fields to struct
> stratix10_svc_cb_data, which lives for the SVC thread lifetime, and
> pointing kaddrN to those fields instead of the stack.
> 
> Patch 2 uses the same mechanism to populate the previously unset kaddr1 in
> svc_thread_cmd_config_status(), exposing firmware status details to callers.
> 
> Adrian Ng Ho Yin (2):
>    firmware: stratix10-svc: fix dangling kaddr pointers in callback data
>    firmware: stratix10-svc: populate kaddr1 from config status response
> 
>   drivers/firmware/stratix10-svc.c              | 45 ++++++++++++-------
>   .../firmware/intel/stratix10-svc-client.h     | 17 +++++++
>   2 files changed, 47 insertions(+), 15 deletions(-)
> 

Do these patches need to get backport into a stable release? If so, 
please add the appropriated Fixes tag.

Thanks,
Dinh