From 70d585759d1704a70bedc161481ca8caf8c63fd9 Mon Sep 17 00:00:00 2001
From: Gani Georgiev <gani.georgiev@gmail.com>
Date: Sun, 23 Aug 2026 00:05:47 +0300
Subject: [PATCH] wrap zip close with mutex

---
 core/backup_create.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/backup_create.go b/core/backup_create.go
index 715ecd3c..e0c199a5 100644
--- a/core/backup_create.go
+++ b/core/backup_create.go
@@ -322,6 +322,9 @@ func newZipWriter(zipFilePath string) (*zipWriter, error) {
 }
 
 func (z *zipWriter) close() error {
+	z.mu.Lock()
+	defer z.mu.Unlock()
+
 	var wErr, fErr error
 
 	if z.w != nil {