[php-src] PR #23987: Fix GH-23986: Clear the realpath cache in the child after pcntl_fork()
| From: | lazerg | Date: | Tue, 29 Sep 2026 11:44:09 +0000 |
| Subject: | [php-src] PR #23987: Fix GH-23986: Clear the realpath cache in the child after pcntl_fork() | ||
| Groups: | php.git-pulls | ||
| Request: | Send a blank email to git-pulls+get-38920@lists.php.net to get a copy of this message | ||
Pull Request: https://github.com/php/php-src/pull/23987
Author: lazerg
The realpath cache survives fork(), so a path under /proc/self that the parent already resolved
stays mapped to the parent's /proc/<pid> in the child. Same goes for /proc/thread-self
and anything that goes through them, like /dev/fd.
The child now clears its realpath cache right after the fork, next to the existing
zend_max_execution_timer_init() call, in pcntl_fork(), pcntl_rfork() and pcntl_forkx().
Fixes GH-23986