diff --git a/mm/memory.c b/mm/memory.c
index 396d7b9059e6..c54943302553 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -631,13 +631,14 @@ static void print_bad_page_map(struct vm_area_struct *vma,
 {
 	struct address_space *mapping;
 	char entry_str[PTVAL_STR_MAX];
-	pgoff_t index;
+	pgoff_t index, anon_index;
 
 	if (is_bad_page_map_ratelimited())
 		return;
 
 	mapping = vma->vm_file ? vma->vm_file->f_mapping : NULL;
 	index = linear_page_index(vma, addr);
+	anon_index = __linear_anon_page_index(vma, addr);
 
 	ptval_bytes_to_hex_str(entry_str, sizeof(entry_str), entry, entry_size);
 	pr_alert("BUG: Bad page map in process %s  %s:%s", current->comm,
@@ -645,8 +646,14 @@ static void print_bad_page_map(struct vm_area_struct *vma,
 	__print_bad_page_map_pgtable(vma->vm_mm, addr);
 	if (page)
 		dump_page(page, "bad page map");
-	pr_alert("addr:%px vm_flags:%08lx anon_vma:%px mapping:%px index:%lx\n",
-		 (void *)addr, vma->vm_flags, vma->anon_vma, mapping, index);
+	pr_alert("addr:%px vm_flags:%08lx anon_vma:%px mapping:%px",
+		 (void *)addr, vma->vm_flags, vma->anon_vma, mapping);
+	if (!vma_is_cow_mapping(vma) || index == anon_index) {
+		pr_cont(" index:%lx\n", index);
+	} else {
+		pr_cont(" index:%lx (file) %lx (anon)\n", index, anon_index);
+	}
+
 	pr_alert("file:%pD fault:%ps mmap:%ps mmap_prepare: %ps read_folio:%ps\n",
 		 vma->vm_file,
 		 vma->vm_ops ? vma->vm_ops->fault : NULL,