From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Thu, 7 Oct 2021 15:11:00 +0000 (+0300)
Subject: maildir: Fix crash when closing a mailbox that isn't open
X-Git-Tag: 2.3.18~195
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=55338455ae39d24ed26efd26872c9923f670a30e;p=thirdparty%2Fdovecot%2Fcore.git

maildir: Fix crash when closing a mailbox that isn't open

This could have happened at least with virtual plugin.
---

diff --git a/src/lib-storage/index/maildir/maildir-storage.c b/src/lib-storage/index/maildir/maildir-storage.c
index 1321a4936c..f9c5a80cdc 100644
--- a/src/lib-storage/index/maildir/maildir-storage.c
+++ b/src/lib-storage/index/maildir/maildir-storage.c
@@ -582,7 +582,8 @@ static void maildir_mailbox_close(struct mailbox *box)
 		mail_index_view_close(&mbox->flags_view);
 	if (mbox->keywords != NULL)
 		maildir_keywords_deinit(&mbox->keywords);
-	maildir_uidlist_deinit(&mbox->uidlist);
+	if (mbox->uidlist != NULL)
+		maildir_uidlist_deinit(&mbox->uidlist);
 	index_storage_mailbox_close(box);
 }