diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 614df433c451..c2e227762152 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -394,14 +394,19 @@ static long udmabuf_create(struct miscdevice *device,
 			goto err;
 		}
 
+		/*
+		 * Take the inode lock to protect against concurrent
+		 * memfd_add_seals(), which takes this lock in write mode.
+		 */
+		inode_lock_shared(file_inode(memfd));
 		ret = check_memfd_seals(memfd);
-		if (ret < 0) {
-			fput(memfd);
-			goto err;
-		}
+		if (ret)
+			goto out_unlock;
 
 		ret = udmabuf_pin_folios(ubuf, memfd, list[i].offset,
 					 list[i].size);
+out_unlock:
+		inode_unlock_shared(file_inode(memfd));
 		fput(memfd);
 		if (ret)
 			goto err;