diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 1c0e6167d8e7..9fa07436a4da 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -1483,14 +1483,13 @@ repeat:
 		goto out;
 
 	lock_page(page);
-
-	/* only true if page reclaim goes wrong, should never happen */
-	DBG_BUGON(justfound && PagePrivate(page));
-
-	/* the page is still in manage cache */
-	if (page->mapping == mc) {
+	if (likely(page->mapping == mc)) {
 		WRITE_ONCE(pcl->compressed_bvecs[nr].page, page);
 
+		/*
+		 * The cached folio is still in managed cache but without
+		 * a valid `->private` pcluster hint.  Let's reconnect them.
+		 */
 		if (!PagePrivate(page)) {
 			/*
 			 * impossible to be !PagePrivate(page) for
@@ -1504,22 +1503,24 @@ repeat:
 			SetPagePrivate(page);
 		}
 
-		/* no need to submit io if it is already up-to-date */
-		if (PageUptodate(page)) {
-			unlock_page(page);
-			page = NULL;
+		if (likely(page->private == (unsigned long)pcl)) {
+			/* don't submit cache I/Os again if already uptodate */
+			if (PageUptodate(page)) {
+				unlock_page(page);
+				page = NULL;
+
+			}
+			goto out;
 		}
-		goto out;
+		/*
+		 * Already linked with another pcluster, which only appears in
+		 * crafted images by fuzzers for now.  But handle this anyway.
+		 */
+		tocache = false;	/* use temporary short-lived pages */
+	} else {
+		DBG_BUGON(1); /* referenced managed folios can't be truncated */
+		tocache = true;
 	}
-
-	/*
-	 * the managed page has been truncated, it's unsafe to
-	 * reuse this one, let's allocate a new cache-managed page.
-	 */
-	DBG_BUGON(page->mapping);
-	DBG_BUGON(!justfound);
-
-	tocache = true;
 	unlock_page(page);
 	put_page(page);
 out_allocpage:
@@ -1677,16 +1678,11 @@ static void z_erofs_submit_queue(struct z_erofs_decompress_frontend *f,
 		end = cur + pcl->pclusterpages;
 
 		do {
-			struct page *page;
-
-			page = pickup_page_for_submission(pcl, i++,
-					&f->pagepool, mc);
-			if (!page)
-				continue;
+			struct page *page = NULL;
 
 			if (bio && (cur != last_index + 1 ||
 				    last_bdev != mdev.m_bdev)) {
-submit_bio_retry:
+drain_io:
 				submit_bio(bio);
 				if (memstall) {
 					psi_memstall_leave(&pflags);
@@ -1695,6 +1691,13 @@ submit_bio_retry:
 				bio = NULL;
 			}
 
+			if (!page) {
+				page = pickup_page_for_submission(pcl, i++,
+						&f->pagepool, mc);
+				if (!page)
+					continue;
+			}
+
 			if (unlikely(PageWorkingset(page)) && !memstall) {
 				psi_memstall_enter(&pflags);
 				memstall = 1;
@@ -1715,7 +1718,7 @@ submit_bio_retry:
 			}
 
 			if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE)
-				goto submit_bio_retry;
+				goto drain_io;
 
 			last_index = cur;
 			bypass = false;