Re: [PATCH v2 2/3] firmware: qcom_scm: handle empty PAS resource table

[Bartosz Golaszewski]

On Mon, 21 Sep 2026 21:56:35 +0200, Mukesh Ojha
<mukesh.ojha@xxxxxxxxxxxxxxxx> said:
> The PAS resource-table query may successfully return a zero-sized
> table. kmemdup() with a zero length returns ZERO_SIZE_PTR,
> which is stored in rproc->table_ptr. The remoteproc core then
> dereferences this invalid pointer while processing resources.
>
> Treat a zero-sized result as an absent resource table and return
> NULL after releasing the TrustZone memory buffer. This allows the
> remoteproc core to skip resource-table processing.
>
> Fixes: 8b9d2050cfa0 ("firmware: qcom_scm: Add qcom_scm_pas_get_rsc_table() to get resource table")
> Signed-off-by: Mukesh Ojha <mukesh.ojha@xxxxxxxxxxxxxxxx>
> ---

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>