diff --git a/mm/internal.h b/mm/internal.h
index d01130e..b67019c 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -52,6 +52,18 @@ struct folio_batch;
 
 void page_writeback_init(void);
 
+/*
+ * This is a file-backed mapping, and is about to be memory mapped - invoke its
+ * mmap hook and safely handle error conditions. On error, VMA hooks will be
+ * mutated.
+ *
+ * @file: File which backs the mapping.
+ * @vma:  VMA which we are mapping.
+ *
+ * Returns: 0 if success, error otherwise.
+ */
+int mmap_file(struct file *file, struct vm_area_struct *vma);
+
 static inline void *folio_raw_mapping(struct folio *folio)
 {
 	unsigned long mapping = (unsigned long)folio->mapping;
diff --git a/mm/mmap.c b/mm/mmap.c
index 1b29592..5d7320e 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2760,7 +2760,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 		}
 
 		vma->vm_file = get_file(file);
-		error = call_mmap(file, vma);
+		error = mmap_file(file, vma);
 		if (error)
 			goto unmap_and_free_vma;
 
@@ -2775,7 +2775,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 		mas_reset(&mas);
 
 		/*
-		 * If vm_flags changed after call_mmap(), we should try merge
+		 * If vm_flags changed after mmap_file(), we should try merge
 		 * vma again as we may succeed this time.
 		 */
 		if (unlikely(vm_flags != vma->vm_flags && prev)) {
diff --git a/mm/nommu.c b/mm/nommu.c
index 8e8fe49..f09e798 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -939,7 +939,7 @@ static int do_mmap_shared_file(struct vm_area_struct *vma)
 {
 	int ret;
 
-	ret = call_mmap(vma->vm_file, vma);
+	ret = mmap_file(vma->vm_file, vma);
 	if (ret == 0) {
 		vma->vm_region->vm_top = vma->vm_region->vm_end;
 		return 0;
@@ -970,7 +970,7 @@ static int do_mmap_private(struct vm_area_struct *vma,
 	 * - VM_MAYSHARE will be set if it may attempt to share
 	 */
 	if (capabilities & NOMMU_MAP_DIRECT) {
-		ret = call_mmap(vma->vm_file, vma);
+		ret = mmap_file(vma->vm_file, vma);
 		if (ret == 0) {
 			/* shouldn't return success if we're not sharing */
 			BUG_ON(!(vma->vm_flags & VM_MAYSHARE));
diff --git a/mm/util.c b/mm/util.c
index aa4f8a4..e1b72b0 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -1103,6 +1103,24 @@ int __weak memcmp_pages(struct page *page1, struct page *page2)
 	return ret;
 }
 
+int mmap_file(struct file *file, struct vm_area_struct *vma)
+{
+	static const struct vm_operations_struct dummy_vm_ops = {};
+	int err = call_mmap(file, vma);
+
+	if (likely(!err))
+		return 0;
+
+	/*
+	 * OK, we tried to call the file hook for mmap(), but an error
+	 * arose. The mapping is in an inconsistent state and we most not invoke
+	 * any further hooks on it.
+	 */
+	vma->vm_ops = &dummy_vm_ops;
+
+	return err;
+}
+
 #ifdef CONFIG_PRINTK
 /**
  * mem_dump_obj - Print available provenance information