Bug #79550 [Com]: Reloading the httpd service repeatedly causes a memory corruption error.

Edit report at https://bugs.php.net/bug.php?id=79550&edit=1 ID: 79550 Comment by: bugreports at gmail dot com Reported by: kitagawa at sraoss dot co dot jp Summary: Reloading the httpd service repeatedly causes a memory corruption error. Status: Open Type: Bug Package: Apache2 related Operating System: Linux PHP Version: 7.3.17 Block user comment: N Private report: N New Comment: chck out which extensions are loaded, on Fedora for some time "imap.so" loaded had a similar result so that i switched to restart instead of reload on machins which need it Previous Comments: ------------------------------------------------------------------------ [2020-05-01 07:33:58] kitagawa at sraoss dot co dot jp Description: ------------ Hi, I'm running Apache 2.4.41 on CentOS 6.4 server. There was a problem (memory corruption), when graceful reloading the httpd service many times. The version of each app is as follows: - httpd-2.4.41 - apr-1.5.2 - apr-util-1.5.4 - php-7.3.4 The following steps will cause the problem. # cat /opt/httpd/htdocs/index.php ------ <?php phpinfo(); ?> ------ # /etc/init.d/httpd start Starting httpd: [ OK ] Display phpinfo() in your browser and check that it is working. http://localhost/index.php Now, when I run the following script, an error occurs (about 1023 times). # for i in $(seq 1030) ; do echo $i; /opt/httpd/bin/httpd -k graceful; done # less /opt/httpd/log/error_log ・・・・ [XXX XXX XX 16:05:23.261688 2020] [mpm_prefork:notice] [pid 2875] AH00171: Graceful restart requested, doing restart *** glibc detected *** /opt/httpd/bin/httpd: malloc(): memory corruption: 0x00000000021a4010 *** *** glibc detected *** /opt/httpd/bin/httpd: malloc(): memory corruption: 0x00000000021a4010 *** This bug occurs when loading the libphp7.so module. Different libphp7.so versions have the same result. But that doesn't happen with the libphp5.so module. It occurs on CentOS 7 as well as CentOS 6. Thanks, Regards. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79550&edit=1