Bug #81091 [Fbk->Opn]: SIGSEGV (Address boundary error) in zend_mm_alloc_small

Edit report at https://bugs.php.net/bug.php?id=81091&edit=1 ID: 81091 User updated by: rafal dot janiczek at gmail dot com Reported by: rafal dot janiczek at gmail dot com Summary: SIGSEGV (Address boundary error) in zend_mm_alloc_small -Status: Feedback +Status: Open Type: Bug Package: Reproducible crash Operating System: Linux PHP Version: 7.4.19 Block user comment: N Private report: N New Comment: Simple repo to reproduce problem: https://github.com/erjotek/phpbug You need to connect via ssh to a real server and try four "todos" in the code. Previous Comments: ------------------------------------------------------------------------ [2021-05-31 12:41:50] nikic@php.net Is there some way to reproduce this issue? (What is the fetcher.one.php script here?) ------------------------------------------------------------------------ [2021-05-31 12:39:54] rafal dot janiczek at gmail dot com Description: ------------ CLI script crash after load ~15 classes via composer (2.0.14). Same with php8.0.5 vendor/composer/ClassLoader.php:478 includeFile() (just after include $file) 'php fetcher.one.php mini-virt' terminated by signal SIGSEGV (Address boundary error) Actual result: -------------- #0 zend_mm_alloc_small (bin_num=0, heap=0x7f1157200040) at ./Zend/zend_alloc.c:1255 #1 _emalloc_8 () at ./Zend/zend_alloc.c:2466 #2 0x0000560638d7dd12 in init_op_array (op_array=op_array@entry=0x7f1157212440, type=type@entry=2 '\002', initial_ops_size=initial_ops_size@entry=64) at ./Zend/zend_opcode.c:53 #3 0x0000560638d76665 in zend_compile_func_decl (result=0x0, ast=0x7f1157264810, toplevel=<optimized out>) at ./Zend/zend_compile.c:5992 #4 0x0000560638d755dc in zend_compile_stmt (ast=0x7f1157264810) at ./Zend/zend_compile.c:8550 #5 0x0000560638d7656f in zend_compile_stmt_list (ast=ast@entry=0x7f1157266288) at ./Zend/zend_compile.c:5271 #6 0x0000560638d755c7 in zend_compile_stmt (ast=ast@entry=0x7f1157266288) at ./Zend/zend_compile.c:8494 #7 0x0000560638d772f0 in zend_compile_class_decl (ast=0x7f11572664e0, toplevel=<optimized out>) at ./Zend/zend_compile.c:6482 #8 0x0000560638d78277 in zend_compile_top_stmt (ast=0x7f11572664e0) at ./Zend/zend_compile.c:8469 #9 0x0000560638d782a0 in zend_compile_top_stmt (ast=0x7f1157262018) at ./Zend/zend_compile.c:8458 #10 0x0000560638d4f804 in zend_compile (type=type@entry=2) at Zend/zend_language_scanner.l:614 #11 0x0000560638d50f6a in compile_file (file_handle=0x7ffeacbb4120, type=2) at Zend/zend_language_scanner.l:650 #12 0x00007f115496b96d in phar_compile_file (file_handle=0x7ffeacbb4120, type=2) at ./ext/phar/phar.c:3323 #13 0x0000560638d50fe7 in compile_filename (type=type@entry=2, filename=filename@entry=0x7f1157213580) at Zend/zend_language_scanner.l:671 #14 0x0000560638dd5d27 in zend_include_or_eval (inc_filename=0x7f1157213580, type=2) at ./Zend/zend_execute.c:4299 #15 0x0000560638df2aee in ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER () at ./Zend/zend_vm_execute.h:37797 #16 0x0000560638e0a869 in execute_ex (ex=0x7f1157200040) at ./Zend/zend_vm_execute.h:57041 #17 0x0000560638d7b41f in zend_call_function (fci=fci@entry=0x7ffeacbb4490, fci_cache=0x7f115727f090, fci_cache@entry=0x7ffeacbb4470) at ./Zend/zend_execute_API.c:820 #18 0x0000560638c85974 in zif_spl_autoload_call (execute_data=<optimized out>, return_value=<optimized out>) at ./ext/spl/php_spl.c:452 #19 0x0000560638d7b33b in zend_call_function (fci=0x7ffeacbb4630, fci_cache=0x7ffeacbb4610) at ./Zend/zend_execute_API.c:833 #20 0x0000560638d7b9f5 in zend_lookup_class_ex (name=name@entry=0x7f11572d3480, key=0x7f11572d35c0, flags=flags@entry=512) at ./Zend/zend_execute_API.c:1002 #21 0x0000560638d7c243 in zend_fetch_class_by_name (class_name=0x7f11572d3480, key=<optimized out>, fetch_type=fetch_type@entry=512) at ./Zend/zend_execute_API.c:1433 #22 0x0000560638defe17 in ZEND_NEW_SPEC_CONST_UNUSED_HANDLER () at ./Zend/zend_vm_execute.h:9255 #23 0x0000560638e0c017 in execute_ex (ex=0x7f1157200040) at ./Zend/zend_vm_execute.h:54651 #24 0x0000560638e13a4b in zend_execute (op_array=0x7f115727e2a0, return_value=0x0) at ./Zend/zend_vm_execute.h:57993 #25 0x0000560638d8a03c in zend_execute_scripts (type=type@entry=8, retval=0x7f115727ad60, retval@entry=0x0, file_count=1461793392, file_count@entry=3) at ./Zend/zend.c:1679 #26 0x0000560638d29810 in php_execute_script (primary_file=<optimized out>) at ./main/main.c:2621 #27 0x0000560638e15b8a in do_cli (argc=3, argv=0x56063a9cc1d0) at ./sapi/cli/php_cli.c:964 #28 0x0000560638beeed8 in main (argc=3, argv=0x56063a9cc1d0) at ./sapi/cli/php_cli.c:1359 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81091&edit=1