From: Libor Peltan <libor.peltan@nic.cz>
Date: Sun, 4 Jan 2026 14:30:12 +0000 (+0100)
Subject: QUIC/requestor: fix crash when counterpart closes connection
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2f5da6d52cf3f0e55c94d595e10f13a1ff1088f;p=thirdparty%2Fknot-dns.git

QUIC/requestor: fix crash when counterpart closes connection
---

diff --git a/src/knot/query/quic-requestor.c b/src/knot/query/quic-requestor.c
index cfeec47954..7d64d58842 100644
--- a/src/knot/query/quic-requestor.c
+++ b/src/knot/query/quic-requestor.c
@@ -255,6 +255,9 @@ int knot_qreq_recv(struct knot_quic_reply *r, struct iovec *out, int timeout_ms)
 		if (ret != KNOT_EOK) {
 			return ret;
 		}
+		if (conn->conn == NULL) {
+			return KNOT_ECONN;
+		}
 	}
 
 	knot_tcp_inbufs_upd_res_t *firstib = stream->inbufs;