protocol: disable connection reuse for SMB(S)

bagder · bagder · commit 74a169575d64 · 2026-04-07T13:23:01.000+02:00
Connections should only be reused when using the same "share" (and perhaps some additional conditions), but instead of fixing this flaw, this change completely disables connection reuse for SMB. This protocol is about to get dropped soon anyway. Reported-by: Osama Hamad Closes #21238
diff --git a/lib/protocol.c b/lib/protocol.c
@@ -316,7 +316,7 @@ const struct Curl_scheme Curl_scheme_smb = {
 #endif
   CURLPROTO_SMB,                        /* protocol */
   CURLPROTO_SMB,                        /* family */
-  PROTOPT_CONN_REUSE,                   /* flags */
+  PROTOPT_NONE,                         /* flags */
   PORT_SMB,                             /* defport */
 };
 
@@ -330,7 +330,7 @@ const struct Curl_scheme Curl_scheme_smbs = {
 #endif
   CURLPROTO_SMBS,                       /* protocol */
   CURLPROTO_SMB,                        /* family */
-  PROTOPT_SSL | PROTOPT_CONN_REUSE,     /* flags */
+  PROTOPT_SSL,                          /* flags */
   PORT_SMBS,                            /* defport */
 };
 
