diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 115b134b4cd1..c2e6495a28bc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -247,13 +247,17 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,
 				goto free_partial_kdata;
 			break;
 
+		case AMDGPU_CHUNK_ID_CP_GFX_SHADOW:
+			if (size < sizeof(struct drm_amdgpu_cs_chunk_cp_gfx_shadow))
+				goto free_partial_kdata;
+			break;
+
 		case AMDGPU_CHUNK_ID_DEPENDENCIES:
 		case AMDGPU_CHUNK_ID_SYNCOBJ_IN:
 		case AMDGPU_CHUNK_ID_SYNCOBJ_OUT:
 		case AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES:
 		case AMDGPU_CHUNK_ID_SYNCOBJ_TIMELINE_WAIT:
 		case AMDGPU_CHUNK_ID_SYNCOBJ_TIMELINE_SIGNAL:
-		case AMDGPU_CHUNK_ID_CP_GFX_SHADOW:
 			break;
 
 		default: