From: Marco Bettini <marco.bettini@open-xchange.com>
Date: Fri, 24 Mar 2023 13:50:29 +0000 (+0000)
Subject: virtual: virtual_sync_apply_existing_expunges() - Don't crash if the backend mailbox... 
X-Git-Tag: 2.4.0~2838
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b891d6768cdf95a137be187051723eff82ab25fe;p=thirdparty%2Fdovecot%2Fcore.git

virtual: virtual_sync_apply_existing_expunges() - Don't crash if the backend mailbox has been removed
---

diff --git a/src/plugins/virtual/virtual-sync.c b/src/plugins/virtual/virtual-sync.c
index b9e7934136..684b738d4c 100644
--- a/src/plugins/virtual/virtual-sync.c
+++ b/src/plugins/virtual/virtual-sync.c
@@ -1773,6 +1773,8 @@ virtual_sync_apply_existing_expunges(struct virtual_mailbox *mbox,
 		if (bbox == NULL || bbox->mailbox_id != vrec->mailbox_id) {
 			bbox = virtual_backend_box_lookup(mbox,
 							  vrec->mailbox_id);
+			if (bbox == NULL)
+				continue;
 			if (!array_is_created(&bbox->sync_outside_expunges))
 				i_array_init(&bbox->sync_outside_expunges, 32);
 		}