From d2f5da6d52cf3f0e55c94d595e10f13a1ff1088f Mon Sep 17 00:00:00 2001
From: Libor Peltan <libor.peltan@nic.cz>
Date: Sun, 4 Jan 2026 15:30:12 +0100
Subject: [PATCH] QUIC/requestor: fix crash when counterpart closes connection

---
 src/knot/query/quic-requestor.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/knot/query/quic-requestor.c b/src/knot/query/quic-requestor.c
index cfeec4795..7d64d5884 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;