diff --git a/criu/include/pagemap.h b/criu/include/pagemap.h
index 8c71805598..3ae15deb9c 100644
--- a/criu/include/pagemap.h
+++ b/criu/include/pagemap.h
@@ -58,6 +58,9 @@ struct page_read {
 	/* Whether or not pages can be read in PIE code */
 	bool pieok;
 
+	/* Whether or not disable image deduplication*/
+	bool disable_dedup;
+
 	/* Private data of reader */
 	struct cr_img *pmi;
 	struct cr_img *pi;
@@ -112,6 +115,8 @@ int pagemap_render_iovec(struct list_head *from, struct task_restore_args *ta);
  */
 extern void dup_page_read(struct page_read *src, struct page_read *dst);
 
+extern void page_read_disable_dedup(struct page_read *pr);
+
 extern int dedup_one_iovec(struct page_read *pr, unsigned long base, unsigned long len);
 
 static inline unsigned long pagemap_len(PagemapEntry *pe)
diff --git a/criu/pagemap.c b/criu/pagemap.c
index 83f69bba37..85bb922596 100644
--- a/criu/pagemap.c
+++ b/criu/pagemap.c
@@ -261,7 +261,7 @@ static int read_local_page(struct page_read *pr, unsigned long vaddr, unsigned l
 			break;
 	}
 
-	if (opts.auto_dedup) {
+	if (opts.auto_dedup && !pr->disable_dedup) {
 		ret = punch_hole(pr, pr->pi_off, len, false);
 		if (ret == -1)
 			return -1;
@@ -792,6 +792,7 @@ int open_page_read_at(int dfd, unsigned long img_id, struct page_read *pr, int p
 	pr->bunch.iov_base = NULL;
 	pr->pmes = NULL;
 	pr->pieok = false;
+	pr->disable_dedup = false;
 
 	pr->pmi = open_image_at(dfd, i_typ, O_RSTR, img_id);
 	if (!pr->pmi)
@@ -852,6 +853,14 @@ int open_page_read(unsigned long img_id, struct page_read *pr, int pr_flags)
 
 #define DUP_IDS_BASE 1000
 
+void page_read_disable_dedup(struct page_read *pr)
+{
+	pr_debug("disable dedup, id: %d\n", pr->id);
+	pr->disable_dedup = true;
+	if (pr->parent)
+		page_read_disable_dedup(pr->parent);
+}
+
 void dup_page_read(struct page_read *src, struct page_read *dst)
 {
 	static int dup_ids = 1;
diff --git a/criu/uffd.c b/criu/uffd.c
index e07b21b69c..98c2b7e075 100644
--- a/criu/uffd.c
+++ b/criu/uffd.c
@@ -1098,6 +1098,8 @@ static int handle_fork(struct lazy_pages_info *parent_lpi, struct uffd_msg *msg)
 
 	lpi_get(lpi->parent);
 
+	page_read_disable_dedup(&parent_lpi->pr);
+	page_read_disable_dedup(&lpi->pr);
 	return 1;
 
 out: