> Fix multiple issues in virtio-gpu VRAM mapping, blob creation, and context
> initialization:
>
> 1. In virtio_gpu_vram_mmap(), set vram->map_state = STATE_ERR if deferred
> virtio_gpu_vram_map() fails so callers do not treat an unmapped VRAM
> node as valid.
> 2. In verify_blob(), reject rc_blob->size == 0 or size values that wrap
> PAGE_ALIGN() to prevent kvmalloc_array(0, ...) from returning
> ZERO_SIZE_PTR.
> 3. In virtio_gpu_gem_create(), virtio_gpu_resource_create_ioctl(), and
> virtio_gpu_resource_create_blob_ioctl(), use drm_gem_object_put()
> instead of drm_gem_object_release() on error so the BO's free callback
> is properly invoked.
> 4. In virtio_gpu_context_init_ioctl(), stage context parameters into local
> variables and only commit them to vfpriv after all parameters and
> ring_idx_mask have been validated.
>
> Fixes: 16845c5d5409 ("drm/virtio: implement blob resources: implement vram
> object")
> Fixes: 85c83ea915ed ("drm/virtio: implement context init: allocate an array
> of fence contexts")
> Assisted-by: LLM
> Signed-off-by: Hui Peng <[email protected]>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review ยท
https://sashiko.dev/#/patchset/[email protected]?part=1
