diff options
Diffstat (limited to 'source/n/dovecot/fix-mysql-double-free.patch')
| -rw-r--r-- | source/n/dovecot/fix-mysql-double-free.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/source/n/dovecot/fix-mysql-double-free.patch b/source/n/dovecot/fix-mysql-double-free.patch new file mode 100644 index 000000000..47842f706 --- /dev/null +++ b/source/n/dovecot/fix-mysql-double-free.patch @@ -0,0 +1,36 @@ +From 3c5101ffdd2a8115e03ed7180d53578765dea4c9 Mon Sep 17 00:00:00 2001 +From: Aki Tuomi <aki.tuomi@dovecot.fi> +Date: Tue, 4 Dec 2018 14:40:04 +0200 +Subject: [PATCH] driver-mysql: Avoid double-closing MySQL connection + +Fixes double-free +--- + src/lib-sql/driver-mysql.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +diff --git a/src/lib-sql/driver-mysql.c b/src/lib-sql/driver-mysql.c +index c87e825e4b..5dd1c3124f 100644 +--- a/src/lib-sql/driver-mysql.c ++++ b/src/lib-sql/driver-mysql.c +@@ -173,7 +173,9 @@ static int driver_mysql_connect(struct sql_db *_db) + static void driver_mysql_disconnect(struct sql_db *_db) + { + struct mysql_db *db = (struct mysql_db *)_db; +- mysql_close(db->mysql); ++ if (db->mysql != NULL) ++ mysql_close(db->mysql); ++ db->mysql = NULL; + } + + static int driver_mysql_parse_connect_string(struct mysql_db *db, +@@ -311,7 +313,9 @@ static void driver_mysql_deinit_v(struct sql_db *_db) + _db->no_reconnect = TRUE; + sql_db_set_state(&db->api, SQL_DB_STATE_DISCONNECTED); + +- mysql_close(db->mysql); ++ if (db->mysql != NULL) ++ mysql_close(db->mysql); ++ db->mysql = NULL; + + sql_connection_log_finished(_db); + event_unref(&_db->event); |