From: Aram Sargsyan <aram@isc.org>
Date: Tue, 1 Mar 2022 12:47:24 +0000 (+0000)
Subject: Add a missing UNLOCK_LOOKUP
X-Git-Tag: v9.19.0~85^2~2
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=98820aef7ed413f12486dacc5a096bea0d0cd951;p=thirdparty%2Fbind9.git

Add a missing UNLOCK_LOOKUP

There was a missing UNLOCK_LOOKUP in the recv_done() callback when
the operation had been canceled. That omission could result in a
deadlock situation.
---

diff --git a/bin/dig/dighost.c b/bin/dig/dighost.c
index e09c547e3c5..3d205583a42 100644
--- a/bin/dig/dighost.c
+++ b/bin/dig/dighost.c
@@ -3583,6 +3583,7 @@ recv_done(isc_nmhandle_t *handle, isc_result_t eresult, isc_region_t *region,
 		debug("recv_done: cancel");
 		isc_nmhandle_detach(&query->readhandle);
 		query_detach(&query);
+		UNLOCK_LOOKUP;
 		return;
 	}