From d567fef38c438ec8854558ed0ff82e25fcde3a37 Mon Sep 17 00:00:00 2001
From: Gluzskiy Alexandr <sss@sss.chaoslab.ru>
Date: Sun, 10 May 2020 13:08:18 +0300
Subject: dbx_sqlite: fixed crash possibility if cursor with destroyed
 statement used

---
 plugins/Dbx_sqlite/src/dbevents.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'plugins/Dbx_sqlite/src/dbevents.cpp')

diff --git a/plugins/Dbx_sqlite/src/dbevents.cpp b/plugins/Dbx_sqlite/src/dbevents.cpp
index 42574318bd..bef40881e8 100755
--- a/plugins/Dbx_sqlite/src/dbevents.cpp
+++ b/plugins/Dbx_sqlite/src/dbevents.cpp
@@ -745,13 +745,15 @@ CDbxSQLiteEventCursor::~CDbxSQLiteEventCursor()
 }
 MEVENT CDbxSQLiteEventCursor::FetchNext()
 {
+	if (!cursor)
+		return 0;
 	int rc = sqlite3_step(cursor);
 	assert(rc == SQLITE_ROW || rc == SQLITE_DONE);
 	if (rc != SQLITE_ROW) {
 		//empty response
 		//reset sql cursor
 		sqlite3_reset(cursor);
-		cursor = 0;
+		cursor = nullptr;
 		return 0;
 	}
 	return sqlite3_column_int64(cursor, 0);
-- 
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