Description:
------------
<?php

function arraysSum(array ...$arrays): array
{
    return array_map(function(array $array): int {
        return arrayssum($array);
    }, $arrays);
}

print_r(arraysSum([1,2,3], [4,5,6], [7,8,9]));


The above file segfaults php 7.0.1

Actual result:
--------------
(gdb) bt
#0  0x00000000006e0b80 in zend_is_callable_ex (callable=0x7fffff7ff1c0, 
    object=0x0, check_flags=8, callable_name=0x7fffff7ff120, 
    fcc=0x7fffff7ff200, error=0x7fffff7ff128)
    at /home/omair/Desktop/php-7.0.1/php-7.0.1/Zend/zend_API.c:3344
#1  0x00000000006cbc51 in zend_call_function (fci=0x7fffff7ff1b0, 
    fci_cache=0x7fffff7ff200)
    at /home/omair/Desktop/php-7.0.1/php-7.0.1/Zend/zend_execute_API.c:743
#2  0x000000000061460e in zif_array_map (execute_data=<optimized out>, 
    return_value=0x7ffff59ec5c0)
    at /home/omair/Desktop/php-7.0.1/php-7.0.1/ext/standard/array.c:5264
#3  0x00000000007260e2 in ZEND_DO_ICALL_SPEC_HANDLER (
    execute_data=0x7ffff59ec540)
    at /home/omair/Desktop/php-7.0.1/php-7.0.1/Zend/zend_vm_execute.h:586
#4  0x0000000000716cf0 in execute_ex (ex=<optimized out>)
    at /home/omair/Desktop/php-7.0.1/php-7.0.1/Zend/zend_vm_execute.h:417
#5  0x00000000006cbf6d in zend_call_function (fci=0x7fffff7ff450, 
    fci_cache=0x7fffff7ff4a0)
    at /home/omair/Desktop/php-7.0.1/php-7.0.1/Zend/zend_execute_API.c:854
#6  0x000000000061460e in zif_array_map (execute_data=<optimized out>, 
    return_value=0x7ffff59ec420)
    at /home/omair/Desktop/php-7.0.1/php-7.0.1/ext/standard/array.c:5264
#7  0x00000000007260e2 in ZEND_DO_ICALL_SPEC_HANDLER (
    execute_data=0x7ffff59ec3a0)
---Type <return> to continue, or q <return> to quit---q
 at /home/omair/Desktop/php-7.0.1/php-7.0.1/ZendQuit
(gdb) set disassembly-flavor intel
(gdb) x/i $rip
=> 0x6e0b80 <zend_is_callable_ex+544>:	mov    QWORD PTR [rsp],r9
(gdb) i r
rax            0x700ee0	7343840
rbx            0x7fffff7ff200	140737479963136
rcx            0x7fffff7ff120	140737479962912
rdx            0x8	8
rsi            0x0	0
rdi            0x7fffff7ff1c0	140737479963072
rbp            0x7fffff7ff120	0x7fffff7ff120
rsp            0x7fffff7feff0	0x7fffff7feff0
r8             0x7fffff7ff200	140737479963136
r9             0x7fffff7ff128	140737479962920
r10            0x7ffff564e770	140737310418800
r11            0x7ffff6a5b640	140737331443264
r12            0x7fffff7ff1c0	140737479963072
r13            0x8	8
r14            0x7fffff7ff200	140737479963136
r15            0x0	0
rip            0x6e0b80	0x6e0b80 <zend_is_callable_ex+544>
eflags         0x10202	[ IF RF ]
cs             0x33	51
ss             0x2b	43
ds             0x0	0
es             0x0	0
fs             0x0	0
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) x/x $rsp
0x7fffff7feff0:	Cannot access memory at address 0x7fffff7feff0
(gdb) list

3339						*callable_name = zend_string_init("Array", sizeof("Array")-1, 0);
3340					}
3341				}
3342				return 0;
3343			case IS_OBJECT:
3344				if (Z_OBJ_HANDLER_P(callable, get_closure) && Z_OBJ_HANDLER_P(callable, get_closure)(callable, &fcc->calling_scope, &fcc->function_handler, &fcc->object) == SUCCESS) {
3345					fcc->called_scope = fcc->calling_scope;
3346					if (callable_name) {
3347						zend_class_entry *ce = Z_OBJCE_P(callable); /* TBFixed: what if it's overloaded? */
3348	
(gdb)