Bug #76993 [Com]: SIGBUS crash in lex_scan

Edit report at https://bugs.php.net/bug.php?id=76993&edit=1 ID: 76993 Comment by: webmaster at mailz dot de Reported by: webmaster at mail dot de Summary: SIGBUS crash in lex_scan Status: Feedback Type: Bug Package: Scripting Engine problem Operating System: Debian Stretch PHP Version: 7.1.22 Block user comment: N Private report: N New Comment: Hi, i am not sure what SugarCRM is doing internally, so i cannot really say. But this is indeed possible for the cache files that are used. Regards, Sebastian Previous Comments: ------------------------------------------------------------------------ [2018-10-10 13:35:28] nikic@php.net Is this an issue you see consistently (i.e. SIGBUS every time you access a certain file), or sporadically? May another file be concurrently modifying the file? If so, that would be bug #52752. ------------------------------------------------------------------------ [2018-10-10 13:32:01] webmaster at mail dot de Description: ------------ Hi, i am experiencing a SIGBUS error with PHP for a sugarCRM installation when doing some basic click in the environment. I tried this on Debian Jessie with the sury.org packages, the Debian Stretch Docker container and the Alpine container, all with 7.1.22. I can reproduce it for all 3 environments. For the Debian Stretch container i created the gdb backtrace. This might be related to https://bugs.php.net/bug.php?id=52752 But that is so old, so i am not really sure. Regards, Sebastian php -m [PHP Modules] bcmath calendar Core ctype curl date dom exif fileinfo filter ftp gd gettext hash iconv imap intl json libxml mbstring mcrypt mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar posix readline Reflection session SimpleXML SPL sqlite3 standard tokenizer xml xmlreader xmlwriter xsl zip zlib [Zend Modules] php -v PHP 7.1.22 (cli) (built: Oct 10 2018 12:42:01) ( NTS DEBUG ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies Actual result: -------------- #0 0x000056025de817e0 in lex_scan (zendlval=0x7fff9e39c600) at Zend/zend_language_scanner.c:2173 2173 yych = *YYCURSOR; (gdb) bt #0 0x000056025de817e0 in lex_scan (zendlval=0x7fff9e39c600) at Zend/zend_language_scanner.c:2173 #1 0x000056025dea87c8 in zendlex (elem=0x7fff9e39c660) at /usr/src/php/Zend/zend_compile.c:1703 #2 0x000056025de75ea5 in zendparse () at /usr/src/php/Zend/zend_language_parser.c:4217 #3 0x000056025de7cdb1 in zend_compile (type=2) at Zend/zend_language_scanner.l:585 #4 0x000056025de7d01f in compile_file (file_handle=0x7fff9e39d340, type=8) at Zend/zend_language_scanner.l:635 #5 0x000056025dc88876 in phar_compile_file (file_handle=0x7fff9e39d340, type=8) at /usr/src/php/ext/phar/phar.c:3320 #6 0x000056025de7d152 in compile_filename (type=8, filename=0x7f52bbe150e0) at Zend/zend_language_scanner.l:662 #7 0x000056025df3e9d8 in zend_include_or_eval (inc_filename=0x7f52bbe150e0, type=8) at /usr/src/php/Zend/zend_execute.c:2845 #8 0x000056025df8b734 in ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER () at /usr/src/php/Zend/zend_vm_execute.h:35499 #9 0x000056025df3ec49 in execute_ex (ex=0x7f52bbe14030) at /usr/src/php/Zend/zend_vm_execute.h:429 #10 0x000056025df3ed5a in zend_execute (op_array=0x7f52bbe76000, return_value=0x0) at /usr/src/php/Zend/zend_vm_execute.h:474 #11 0x000056025dedb8e3 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/src/php/Zend/zend.c:1482 #12 0x000056025de40e9c in php_execute_script (primary_file=0x7fff9e39fa80) at /usr/src/php/main/main.c:2577 #13 0x000056025dfd5e04 in main (argc=1, argv=0x7fff9e39ff18) at /usr/src/php/sapi/fpm/fpm/fpm_main.c:1966 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76993&edit=1