diff --git a/ext/curl/tests/bug48203_multi.phpt b/ext/curl/tests/bug48203_multi.phpt
new file mode 100644
index 00000000000..0be51359486
--- /dev/null
+++ b/ext/curl/tests/bug48203_multi.phpt
@@ -0,0 +1,106 @@
+--TEST--
+Variation of bug #48203 with curl_multi_exec (Crash when file pointers passed to curl are closed before calling curl_multi_exec)
+--SKIPIF--
+<?php
+if (!extension_loaded("curl")) {
+	exit("skip curl extension not loaded");
+}
+if (false === getenv('PHP_CURL_HTTP_REMOTE_SERVER'))  {
+	exit("skip PHP_CURL_HTTP_REMOTE_SERVER env variable is not defined");
+}
+?>
+--FILE--
+<?php
+
+function checkForClosedFilePointer($curl_option, $description) {
+	$fp = fopen(dirname(__FILE__) . '/bug48203.tmp', 'w');
+
+	$ch1 = curl_init();
+	$ch2 = curl_init();
+
+	$options = array(
+		CURLOPT_RETURNTRANSFER => 1,
+		$curl_option => $fp,
+		CURLOPT_URL => getenv("PHP_CURL_HTTP_REMOTE_SERVER")
+	);
+
+	// we also need to set CURLOPT_VERBOSE to test CURLOPT_STDERR properly
+	if (CURLOPT_STDERR == $curl_option) {
+		$options[CURLOPT_VERBOSE] = 1;
+	}
+
+	if (CURLOPT_INFILE == $curl_option) {
+	    $options[CURLOPT_UPLOAD] = 1;
+	}
+
+	curl_setopt_array($ch1, $options);
+	curl_setopt_array($ch2, $options);
+
+	fclose($fp); // <-- premature close of $fp caused a crash!
+
+	$mh = curl_multi_init();
+
+	curl_multi_add_handle($mh, $ch1);
+	curl_multi_add_handle($mh, $ch2);
+
+	$active = 0;
+	do {
+		curl_multi_exec($mh, $active);
+	} while ($active > 0);
+
+	curl_multi_remove_handle($mh, $ch1);
+	curl_multi_remove_handle($mh, $ch2);
+	curl_multi_close($mh);
+
+	echo "Ok for $description\n";
+}
+
+$options_to_check = array(
+	"CURLOPT_STDERR", "CURLOPT_WRITEHEADER", "CURLOPT_FILE", "CURLOPT_INFILE"
+);
+
+foreach($options_to_check as $option) {
+	checkForClosedFilePointer(constant($option), $option);
+}
+
+?>
+--CLEAN--
+<?php @unlink(dirname(__FILE__) . '/bug48203.tmp'); ?>
+--EXPECTF--
+Warning: curl_multi_exec(): %d is not a valid stream resource in %s on line %d
+
+Warning: curl_multi_exec(): CURLOPT_STDERR handle is incorrect in %s on line %d
+
+Warning: curl_multi_exec(): %d is not a valid stream resource in %s on line %d
+
+Warning: curl_multi_exec(): CURLOPT_STDERR handle is incorrect in %s on line %d
+%a
+Ok for CURLOPT_STDERR
+
+Warning: curl_multi_exec(): %d is not a valid stream resource in %s on line %d
+
+Warning: curl_multi_exec(): CURLOPT_WRITEHEADER handle is incorrect in %s on line %d
+
+Warning: curl_multi_exec(): %d is not a valid stream resource in %s on line %d
+
+Warning: curl_multi_exec(): CURLOPT_WRITEHEADER handle is incorrect in %s on line %d
+%AOk for CURLOPT_WRITEHEADER
+
+Warning: curl_multi_exec(): %d is not a valid stream resource in %s on line %d
+
+Warning: curl_multi_exec(): CURLOPT_FILE handle is incorrect in %s on line %d
+
+Warning: curl_multi_exec(): %d is not a valid stream resource in %s on line %d
+
+Warning: curl_multi_exec(): CURLOPT_FILE handle is incorrect in %s on line %d
+%a
+Ok for CURLOPT_FILE
+
+Warning: curl_multi_exec(): %d is not a valid stream resource in %s on line %d
+
+Warning: curl_multi_exec(): CURLOPT_INFILE handle is incorrect in %s on line %d
+
+Warning: curl_multi_exec(): %d is not a valid stream resource in %s on line %d
+
+Warning: curl_multi_exec(): CURLOPT_INFILE handle is incorrect in %s on line %d
+Ok for CURLOPT_INFILE
diff --git a/ext/curl/tests/curl_file_deleted_before_curl_close.phpt b/ext/curl/tests/curl_file_deleted_before_curl_close.phpt
new file mode 100644
index 00000000000..680ae547ce7
--- /dev/null
+++ b/ext/curl/tests/curl_file_deleted_before_curl_close.phpt
@@ -0,0 +1,37 @@
+--TEST--
+Memory corruption error if fp of just created file is closed before curl_close.
+--CREDITS--
+Alexey Shein <confik@gmail.com>
+--SKIPIF--
+<?php if (!extension_loaded("curl") || false === getenv('PHP_CURL_HTTP_REMOTE_SERVER')) print "skip"; ?>
+--FILE--
+<?php
+
+$ch = curl_init(getenv('PHP_CURL_HTTP_REMOTE_SERVER'));
+
+$temp_file = dirname(__FILE__) . '/curl_file_deleted_before_curl_close.tmp';
+if (file_exists($temp_file)) {
+	unlink($temp_file); // file should not exist before test
+}
+
+$handle = fopen($temp_file, 'w');
+
+curl_setopt($ch, CURLOPT_STDERR, $handle);
+curl_setopt($ch, CURLOPT_VERBOSE, 1);
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+
+curl_exec($ch);
+
+fclose($handle); // causes glibc memory error
+
+//unlink($temp_file); // uncomment to test segfault (file not found on iowrite.c)
+
+curl_close($ch);
+echo "Closed correctly\n";
+?>
+--CLEAN--
+<?php
+unlink(dirname(__FILE__) . '/curl_file_deleted_before_curl_close.tmp');
+?>
+--EXPECTF--
+Closed correctly