From: Stefan Eissing <stefan@eissing.org>
Date: Thu, 10 Jul 2025 10:29:25 +0000 (+0200)
Subject: socks: fix query when filter context is null
X-Git-Tag: curl-8_15_0~53
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=74a94e699a8e68025432d48433603b80c72b7afb;p=thirdparty%2Fcurl.git

socks: fix query when filter context is null

socks connection filter context may be NULL at the time
of a query, accomodate for that.

Closes #17885
---

diff --git a/lib/socks.c b/lib/socks.c
index 10a307dc5c..c7af0f4cb3 100644
--- a/lib/socks.c
+++ b/lib/socks.c
@@ -1193,13 +1193,15 @@ static CURLcode socks_cf_query(struct Curl_cfilter *cf,
 {
   struct socks_state *sx = cf->ctx;
 
-  switch(query) {
-  case CF_QUERY_HOST_PORT:
-    *pres1 = sx->remote_port;
-    *((const char **)pres2) = sx->hostname;
-    return CURLE_OK;
-  default:
-    break;
+  if(sx) {
+    switch(query) {
+    case CF_QUERY_HOST_PORT:
+      *pres1 = sx->remote_port;
+      *((const char **)pres2) = sx->hostname;
+      return CURLE_OK;
+    default:
+      break;
+    }
   }
   return cf->next ?
     cf->next->cft->query(cf->next, data, query, pres1, pres2) :