Repository navigation
JIT: misaligned zval passed to ZEND_ADD_ARRAY_ELEMENT handler #25269
Description
Description
The following code:
<?php
set_error_handler(function($errno, $errstr) {
throw new ErrorException($errstr);
});
class AzureAuthHelper {
public static function getAzureEnvironment($env) {
$validEnvs = [
null => 1, "" => 1, " " => 1, "azure" => 1, "AZURE_CLOUD" => 1,
];
return $validEnvs[strtolower(trim($env))] ?? 1;
}
}
AzureAuthHelper::getAzureEnvironment("unknown");Resulted in this output:
Zend/zend_vm_execute.h:7986:4: runtime error: member access within misaligned address 0x7feaa52b2539 for type 'zval' (aka 'struct _zval_struct'), which requires 8 byte alignment
0x7feaa52b2539: note: pointer points here
00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 10 00 00 00 00
^
#0 0x6229e71 in ZEND_ADD_ARRAY_ELEMENT_SPEC_CONST_CONST_HANDLER Zend/zend_vm_execute.h:7986:4
#1 0x48812b5c (/dev/zero (deleted)+0x8000b5c)
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior Zend/zend_vm_execute.h:7986:4 in
To reproduce: ./sapi/cli/php -d opcache.enable_cli=1 -d opcache.jit=1235 -d opcache.jit_buffer_size=64M -d opcache.file_update_protection=0 -d opcache.jit_hot_loop=1 -d opcache.jit_hot_func=1 -d opcache.jit_hot_return=1 -d opcache.jit_hot_side_exit=1 test.php
PHP Version
nightly
Operating System
No response
Activity
Fix phpGH-25269: JIT: misaligned zval passed to ZEND_ADD_ARRAY_ELEMEN…
Fix phpGH-25269: JIT: misaligned zval passed to ZEND_ADD_ARRAY_ELEMEN…
Optimizer: null array keys may throw
Optimizer: null array keys may throw (phpGH-24654)