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Segmentation fault on unknown address 0x600000000018 in ext/opcache/jit/zend_jit.c #14082

Closed
@YuanchengJiang

Description

@YuanchengJiang

Description

The following code:

test.php:

<?phpFoo::test();?>

preload.inc:

<?phpclass Foo {publicstaticfunctiontest() {static$i =0;var_dump(++$i);    }}Foo::test();eval("class Bar extends Foo {}");// Avoid early binding.Foo::test();Bar::test();

Resulted in this output:

AddressSanitizer:DEADLYSIGNAL===================================================================1568876==ERROR: AddressSanitizer: SEGV on unknown address 0x600000000018 (pc 0x7fd3be7a109d bp 0x7ffd1346c4d0 sp 0x7ffd1346c360 T0)==1568876==The signal is caused by a READ memory access.    #0 0x7fd3be7a109d in zend_jit_cleanup_func_info /php-src/ext/opcache/jit/zend_jit.c:2751:8    #1 0x7fd3be7a0f34 in zend_jit_cleanup_func_info /php-src/ext/opcache/jit/zend_jit.c:2746:5    #2 0x7fd3be70c744 in zend_real_jit_func /php-src/ext/opcache/jit/zend_jit.c:2799:2    #3 0x7fd3be70d273 in zend_jit_hot_func /php-src/ext/opcache/jit/zend_jit.c:2908:4    #4 0x7fd3bebe725f in zend_jit_func_counter_helper /php-src/ext/opcache/jit/zend_jit_vm_helpers.c:256:3    #5 0x5607f3146b87 in execute_ex /php-src/Zend/zend_vm_execute.h:57144:7    #6 0x5607f3147f52 in zend_execute /php-src/Zend/zend_vm_execute.h:62776:2    #7 0x5607f2f93bc8 in zend_execute_script /php-src/Zend/zend.c:1899:3    #8 0x5607f2afcf86 in php_execute_script_ex /php-src/main/main.c:2507:13    #9 0x5607f2afd828 in php_execute_script /php-src/main/main.c:2547:9    #10 0x5607f3ec66c3 in do_cli /php-src/sapi/cli/php_cli.c:966:5    #11 0x5607f3ec2c52 in main /php-src/sapi/cli/php_cli.c:1340:18    #12 0x7fd3c478bd8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16    #13 0x7fd3c478be3f in __libc_start_main csu/../csu/libc-start.c:392:3    #14 0x5607f0e031f4 in _start (/php-src/sapi/cli/php+0x1c031f4) (BuildId: efef4313e9b3f9c29ffacbb2357a940caebf48b7)AddressSanitizer can not provide additional info.SUMMARY: AddressSanitizer: SEGV /php-src/ext/opcache/jit/zend_jit.c:2751:8 in zend_jit_cleanup_func_info==1568876==ABORTING

To reproduce:

/php-src/sapi/cli/php  -n -c '/php-src/tmp-php.ini'   -d "opcache.cache_id=worker19" -d "output_handler=" -d "open_basedir=" -d "disable_functions=" -d "output_buffering=Off" -d "error_reporting=32767" -d "display_errors=1" -d "display_startup_errors=1" -d "log_errors=0" -d "html_errors=0" -d "track_errors=0" -d "report_memleaks=1" -d "report_zend_debug=0" -d "docref_root=" -d "docref_ext=.html" -d "error_prepend_string=" -d "error_append_string=" -d "auto_prepend_file=" -d "auto_append_file=" -d "ignore_repeated_errors=0" -d "precision=14" -d "serialize_precision=-1" -d "memory_limit=128M" -d "opcache.fast_shutdown=0" -d "opcache.file_update_protection=0" -d "opcache.revalidate_freq=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" -d "opcache.jit_max_root_traces=100000" -d "opcache.jit_max_side_traces=100000" -d "opcache.jit_max_exit_counters=100000" -d "opcache.protect_memory=1" -d "zend.assertions=1" -d "zend.exception_ignore_args=0" -d "zend.exception_string_param_max_len=15" -d "short_open_tag=0" -d "extension_dir=/php-src/modules/" -d "zend_extension=/php-src/modules/opcache.so" -d "session.auto_start=0" -d "opcache.enable=1" -d "opcache.enable_cli=1" -d "opcache.optimization_level=-1" -d "opcache.preload=/tmp/preload.inc" -d "opcache.jit=1235" -d "session.save_path=\"123;:/really\\\\completely:::/invalid;;,23123;213\"" -d "opcache.record_warnings=0" -f ./test.php

PHP Version

PHP 8.4.0-dev

Operating System

ubuntu 22.04

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