[AMD Official Use Only - AMD Internal Distribution Only] Looked into this bit more. We need support max_nodes which includes CPU and GPU agents. P->n_pdds only include GPU agents. You need to add CPU agents also.
Best Regards, Harish ________________________________ From: Liu, Alysa <[email protected]> Sent: Monday, March 30, 2026 2:36 PM To: [email protected] <[email protected]> Cc: Kasiviswanathan, Harish <[email protected]>; Liu, Alysa <[email protected]> Subject: [PATCH v2] drm/amdkfd: Add upper bound check for num_of_nodes drm/amdkfd: Add upper bound check for num_of_nodes in kfd_ioctl_get_process_apertures_new. Signed-off-by: Alysa Liu <[email protected]> --- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 1db565442c48..91f807c9e553 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -776,6 +776,9 @@ static int kfd_ioctl_get_process_apertures_new(struct file *filp, goto out_unlock; } + if (args->num_of_nodes > p->n_pdds) + return -EINVAL; + /* Fill in process-aperture information for all available * nodes, but not more than args->num_of_nodes as that is * the amount of memory allocated by user -- 2.34.1
