diff --git a/ext/opcache/jit/zend_jit_trace.c b/ext/opcache/jit/zend_jit_trace.c
index 5d824c207d18f..551b3ee6d1bb9 100644
--- a/ext/opcache/jit/zend_jit_trace.c
+++ b/ext/opcache/jit/zend_jit_trace.c
@@ -4162,6 +4162,7 @@ static const void *zend_jit_trace(zend_jit_trace_rec *trace_buffer, uint32_t par
 			}
 
 			if ((info & MAY_BE_PACKED_GUARD) != 0
+			 && STACK_TYPE(stack, i) == IS_ARRAY
 			 && (trace_buffer->stop == ZEND_JIT_TRACE_STOP_LOOP
 			  || trace_buffer->stop == ZEND_JIT_TRACE_STOP_RECURSIVE_CALL
 			  || trace_buffer->stop == ZEND_JIT_TRACE_STOP_RECURSIVE_RET)
diff --git a/ext/opcache/tests/jit/gh17577.phpt b/ext/opcache/tests/jit/gh17577.phpt
new file mode 100644
index 0000000000000..2eac2d05e432d
--- /dev/null
+++ b/ext/opcache/tests/jit/gh17577.phpt
@@ -0,0 +1,27 @@
+--TEST--
+GH-17577 (JIT packed type guard crash)
+--EXTENSIONS--
+opcache
+--INI--
+opcache.jit_buffer_size=16M
+opcache.jit_hot_func=1
+--FILE--
+<?php
+$a = array(
+    array(1,2,3),
+    0,
+);
+function my_dump($var) {
+}
+foreach($a as $b) {
+    for ($i = 0; $i < 3; $i++) {
+        my_dump($b[$i]);
+    }
+}
+?>
+--EXPECTF--
+Warning: Trying to access array offset on int in %s on line %d
+
+Warning: Trying to access array offset on int in %s on line %d
+
+Warning: Trying to access array offset on int in %s on line %d