- Fixed bug #53517 (segfault in pgsql_stmt_execute() when postgres is down)

patch by: gyp at balabit dot hu

NEWS

@@ -1,6 +1,8 @@
 PHP                                                                        NEWS
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 ?? ??? ????, PHP 5.2.16
+- Fixed bug #53517 (segfault in pgsql_stmt_execute() when postgres is down).
+  (gyp at balabit dot hu)
 - Fixed bug #53516 (Regression in open_basedir handling). (Ilia)
 
 09 Dec 2010, PHP 5.2.15

ext/pdo_pgsql/pgsql_statement.c

@@ -156,7 +156,7 @@ stmt_retry:
 					 * chance to DEALLOCATE the prepared statements it has created. so, if we hit a 42P05 we 
 					 * deallocate it and retry ONCE (thies 2005.12.15)
 					 */
-					if (!strcmp(sqlstate, "42P05")) {
+					if (sqlstate && !strcmp(sqlstate, "42P05")) {
 						char buf[100]; /* stmt_name == "pdo_crsr_%08x" */
 						PGresult *res;
 						snprintf(buf, sizeof(buf), "DEALLOCATE %s", S->stmt_name);