From f63c26509298ecfdf7e50d7b08f96809b2235ddd Mon Sep 17 00:00:00 2001
From: rayoo <rayjun0412@gmail.com>
Date: Sun, 10 May 2026 19:43:40 +0800
Subject: [PATCH] internal/download: close dst on io.Copy error (#34910)

---
 internal/download/download.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/internal/download/download.go b/internal/download/download.go
index 27d3732731..94517166f5 100644
--- a/internal/download/download.go
+++ b/internal/download/download.go
@@ -212,6 +212,7 @@ func (db *ChecksumDB) DownloadFile(url, dstPath string) error {
 		dst = newDownloadWriter(fd, resp.ContentLength)
 	}
 	if _, err = io.Copy(dst, resp.Body); err != nil {
+		dst.Close()
 		os.Remove(tmpfile)
 		return err
 	}