diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 3750a982aaf6..1ee208c2c85e 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -408,7 +408,7 @@ static vm_fault_t drm_gem_shmem_fault(struct vm_fault *vmf)
 	loff_t num_pages = obj->size >> PAGE_SHIFT;
 	struct page *page;
 
-	if (vmf->pgoff > num_pages || WARN_ON_ONCE(!shmem->pages))
+	if (vmf->pgoff >= num_pages || WARN_ON_ONCE(!shmem->pages))
 		return VM_FAULT_SIGBUS;
 
 	page = shmem->pages[vmf->pgoff];