On 10/10/2026 2:53 AM, Dmitry Osipenko wrote:
24.09.2026 12:55, Honglei Huang пишет:+int virtio_gpu_userptr_create(struct virtio_gpu_device *vgdev, + struct drm_file *file, + struct virtio_gpu_object_params *params, + struct virtio_gpu_object **bo_ptr) +{ + struct virtio_gpu_object_userptr *userptr; + struct virtio_gpu_mem_entry *ents = NULL; + struct sg_table *sgt; + struct mm_struct *mm; + unsigned long lock_limit; + unsigned long start; + unsigned long end; + s64 new_pinned; + unsigned int nents; + int ret; + + *bo_ptr = NULL; + + if (!params->size || !IS_ALIGNED(params->size, PAGE_SIZE) || + params->userptr != (unsigned long)params->userptr) + return -EINVAL; + + start = params->userptr; + if (!IS_ALIGNED(start, PAGE_SIZE) || + check_add_overflow(start, (unsigned long)params->size, &end)) + return -EINVAL;There is new vgdev->blob_alignment defining host page size as it may differ from guest's page. Will be good to validate both.
Will add blob_alignment check in next version, thanks for the review. Regards, Honglei
