From eaa6daa5f5d79c0e34aa1a08faef3c574e46d613 Mon Sep 17 00:00:00 2001
From: Sergey Kandaurov <pluknet@nginx.com>
Date: Tue, 28 May 2024 17:17:19 +0400
Subject: [PATCH] QUIC: client transport parameter data length checking.

---
 src/event/quic/ngx_event_quic_transport.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/event/quic/ngx_event_quic_transport.c b/src/event/quic/ngx_event_quic_transport.c
index 19670a6b1..fba098caa 100644
--- a/src/event/quic/ngx_event_quic_transport.c
+++ b/src/event/quic/ngx_event_quic_transport.c
@@ -1750,6 +1750,14 @@ ngx_quic_parse_transport_params(u_char *p, u_char *end, ngx_quic_tp_t *tp,
             return NGX_ERROR;
         }
 
+        if ((size_t) (end - p) < len) {
+            ngx_log_error(NGX_LOG_INFO, log, 0,
+                          "quic failed to parse"
+                          " transport param id:0x%xL, data length %uL too long",
+                          id, len);
+            return NGX_ERROR;
+        }
+
         rc = ngx_quic_parse_transport_param(p, p + len, id, tp);
 
         if (rc == NGX_ERROR) {