From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Mon, 30 Dec 2024 16:13:49 +0000 (+0100)
Subject: dnsdist: Don't dereference a null pointer when accessing DoH{,3} headers via the... 
X-Git-Tag: dnsdist-2.0.0-alpha1~187^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F15002%2Fhead;p=thirdparty%2Fpdns.git

dnsdist: Don't dereference a null pointer when accessing DoH{,3} headers via the FFI interface
---

diff --git a/pdns/dnsdistdist/dnsdist-lua-ffi.cc b/pdns/dnsdistdist/dnsdist-lua-ffi.cc
index 79ee928428..9ed635a522 100644
--- a/pdns/dnsdistdist/dnsdist-lua-ffi.cc
+++ b/pdns/dnsdistdist/dnsdist-lua-ffi.cc
@@ -452,6 +452,10 @@ size_t dnsdist_ffi_dnsquestion_get_http_headers(dnsdist_ffi_dnsquestion_t* dq, c
   }
 #endif /* HAVE_DNS_OVER_HTTP3 */
 
+  if (!dq->httpHeadersVect) {
+    return 0;
+  }
+
   if (!dq->httpHeadersVect->empty()) {
     *out = dq->httpHeadersVect->data();
   }