#21615 [Ver]: PCRE segfault with (very) large string.

ID: 21615 User updated by: olivier.gondouin@planet-service.fr Reported By: olivier.gondouin@planet-service.fr Status: Verified Bug Type: Reproducible crash Operating System: GNU/linux PHP Version: 4.3.0 New Comment: for information ther's the same bug on php-4.2.3 compiled more infos. With same parameters (only gd external lib was used instead of 4.3 bundled). But this works fine on Mandrake linux 8.2 system with its own rpmized php (php-4.1.2 I think). Don't know if Mandrake team applied a special patch on sources??? Previous Comments: ------------------------------------------------------------------------ [2003-01-13 16:26:42] iliaa@php.net The actual crash occurs inside the pcrelib, so it could pcre related, but since I am unable to replicate the crash using pcre command line tools it maybe PHP related after all. ------------------------------------------------------------------------ [2003-01-13 10:56:27] olivier.gondouin@planet-service.fr oops: http://planet-service.fr/test2.txt.gz ------------------------------------------------------------------------ [2003-01-13 10:55:35] olivier.gondouin@planet-service.fr I'm really sorry: http://planet-service.fr/test2.php.gz ------------------------------------------------------------------------ [2003-01-13 09:53:25] iliaa@php.net Cannot download the test script due to what appears to be a parse error. Could you please make the file avaliable as text (.txt). ------------------------------------------------------------------------ [2003-01-13 07:51:41] olivier.gondouin@planet-service.fr PCRE segfault on a big regular expression on a really big string (>17490 chars) special parameters in php.ini file: memory_limit = 64M test script: http://planet-service.fr/test2.php.gz this script test a substring of the crashing string. a loop do the test with this substring, and increase the size of the string at each step and print out the size. I put 17490 as starting size as that crash at 17491. The parameters at at the end of the script (after the string itself). compilation options: ./configure --prefix=/opt/php-4.3.0 --with-apache=../apache_1.3.27 --with-config-file-path=/opt/php-4.3.0/lib --enable-calendar --enable-track-vars --enable-ftp --with-readline --with-imap=/opt/c-client --with-openssl=/opt/openssl --with -gdbm=/usr --with-mysql=/opt/mysql --with-pgsql=/opt/postgresql --enable-trans-sid -with-regex=php --enable-sysvsem --enable-sysvshm --enable-memory-limit --enable-debug=no --with-ttf=/opt/freetype --with-t1lib=/opt/t1lib --with-xml --enable-sockets --with-jpeg-dir=/opt/jpeg --with-tiff-dir=/opt/tiff --with-png-dir=/opt/libpng --with-zlib-dir=/opt/zlib --with-gd --enable-gd-native-ttf --enable-exif --with-pdflib=/opt/pdflib --enable-bcmath --with-ming=/opt/ming --with-bz2=/opt/bzip2 --with-zlib --with-dom=/opt/libxml2 --with-dom-xslt=/opt/libxslt --with-dom-exslt=/opt/libxslt --enable-xslt --with-xslt-sablot=/opt/sablotron --with-expat-dir=/opt/expat --with-ldap=/opt/openldap --with-mcal=/opt/libmcal --with-curl=/opt/curl-7.10.2 --with-iconv=/opt/libiconv --enable-mbstring --with-zip=/opt/zziplib Olivier ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=21615&edit=1