From 27d3373496ec5b2e45bd7403ccde1ab891efe00b Mon Sep 17 00:00:00 2001
From: Nikita Popov <nikita.ppv@gmail.com>
Date: Thu, 20 Jun 2019 15:03:44 +0200
Subject: [PATCH] SOAP: Avoid indexing into null pointer

---
 ext/soap/soap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ext/soap/soap.c b/ext/soap/soap.c
index 663f260920..a74aaf7d15 100644
--- a/ext/soap/soap.c
+++ b/ext/soap/soap.c
@@ -4070,7 +4070,8 @@ static xmlDocPtr serialize_response_call(sdlFunctionPtr function, char *function
 					int hdr_use = SOAP_LITERAL;
 					zval *hdr_ret = &h->retval;
 					char *hdr_ns   = h->hdr?h->hdr->ns:NULL;
-					char *hdr_name = Z_STRVAL(h->function_name);
+					char *hdr_name = Z_TYPE(h->function_name) == IS_STRING
+						? Z_STRVAL(h->function_name) : NULL;
 					HashTable *ht = NULL;
 
 					if (Z_TYPE(h->retval) == IS_OBJECT &&
-- 
2.50.1