Bug #76109 [Com]: Unsafe access to fpm scoreboard

Edit report at https://bugs.php.net/bug.php?id=76109&edit=1 ID: 76109 Comment by: backhaus at traum-ferienwohnungen dot de Reported by: backhaus at traum-ferienwohnungen dot de Summary: Unsafe access to fpm scoreboard Status: Open Type: Bug Package: FPM related Operating System: Linux PHP Version: master-Git-2018-03-17 (Git) Block user comment: N Private report: N New Comment: Pull request is https://github.com/php/php-src/pull/3185 Previous Comments: ------------------------------------------------------------------------ [2018-03-17 19:38:54] backhaus at traum-ferienwohnungen dot de Pull request is https://github.com/php/php-src/pull/3185. Cannot attach because the bug tracker cannot load it from github for some reason. ------------------------------------------------------------------------ [2018-03-17 13:59:58] backhaus at traum-ferienwohnungen dot de Description: ------------ It seems there is an unsafe access to the scoreboard procs in fpm_status_handle_request. The scoreboard is copied under a lock, but later scoreboard procs are copied from scoreboard_p without locking. This was pointed out to me by bukka in https://github.com/php/php-src/pull/3182#discussion_r174150992 . The risk of this is pretty low. The only impact in can imagine being inconsistent readings on the status page. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76109&edit=1