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Segmentation fault in the Zend engine (JIT enabled) · Issue #15652 · php/php-src · GitHub
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Description
Description
The following code:
<?php
class C {}
trait T {
public function equal(C $type): bool {
return $type instanceof self && $this->value === $type->value;
}
}
class C1 extends C {
use T;
public function __construct(private int $value) {}
}
class C2 extends C {
use T;
}
$x = new C1(1);
var_dump($x->equal($x));
var_dump($x->equal($x));
$a = new C2("aaa");
var_dump($a->equal($a));
var_dump($a->equal($a));Resulted in this output:
=================================================================
==1881556==ERROR: AddressSanitizer: SEGV on unknown address (pc 0x7fcf2b9bdbdc bp 0x7ffc63df4fd0 sp 0x7ffc63df4f30 T0)
==1881556==The signal is caused by a READ memory access.
==1881556==Hint: this fault was caused by a dereference of a high value address (see register values below). Disassemble the provided pc to learn which register was used.
LLVMSymbolizer: error reading file: No such file or directory
#0 0x7fcf2b9bdbdc (/dev/zero (deleted)+0x8000bdc)
#1 0x5622d9599022 in zend_execute /php-src/Zend/zend_vm_execute.h:63873:2
#2 0x5622da094e08 in zend_execute_script /php-src/Zend/zend.c:1913:3
#3 0x5622d8c684c6 in php_execute_script_ex /php-src/main/main.c:2576:13
#4 0x5622d8c68d68 in php_execute_script /php-src/main/main.c:2616:9
#5 0x5622da0a2c53 in do_cli /php-src/sapi/cli/php_cli.c:935:5
#6 0x5622da09e672 in main /php-src/sapi/cli/php_cli.c:1309:18
#7 0x7fcf7220ad8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/dev/zero (deleted)+0x8000bdc)
==1881556==ABORTING
To reproduce:
opcache.enable_cli=1
opcache.jit_buffer_size=64M
opcache.jit=tracing
opcache.jit_hot_func=2
PHP Version
PHP 8.4.0-dev
Operating System
ubuntu 22.04
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