From: Stephan Bosch <stephan.bosch@dovecot.fi>
Date: Sun, 4 Mar 2018 22:42:45 +0000 (+0100)
Subject: lib-smtp: server: MAIL command: Make sure conn->state.pending_mail_cmds cannot decrem... 
X-Git-Tag: 2.3.1~72
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f0908f013dbf53ae5ee0ab546eeebf7d85c0d256;p=thirdparty%2Fdovecot%2Fcore.git

lib-smtp: server: MAIL command: Make sure conn->state.pending_mail_cmds cannot decrement through zero.

Added assertion.
---

diff --git a/src/lib-smtp/smtp-server-cmd-mail.c b/src/lib-smtp/smtp-server-cmd-mail.c
index 1efbba84e9..f1574bf6f1 100644
--- a/src/lib-smtp/smtp-server-cmd-mail.c
+++ b/src/lib-smtp/smtp-server-cmd-mail.c
@@ -35,6 +35,7 @@ static void cmd_mail_replied(struct smtp_server_cmd_ctx *cmd)
 	struct smtp_server_cmd_mail *data =
 		(struct smtp_server_cmd_mail *)command->data;
 
+	i_assert(conn->state.pending_mail_cmds > 0);
 	conn->state.pending_mail_cmds--;
 
 	i_assert(smtp_server_command_is_replied(command));