Fix #80092 (ZTS + preload = segfault on shutdown) #12311
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After preloading has executed, the executor globals for class_table and function_table are still referring to the values during preloading. If no request happens after that then these values will remain dangling pointers. If then the -v option on CLI or -h option (and possibly others) on CGI is provided, there is a double free. Fix it by nulling the pointers explicitly after preloading has finished to fix it for all SAPIs.
dstogov
approved these changes
Oct 2, 2023
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Fixes https://bugs.php.net/bug.php?id=80092
After preloading has executed, the executor globals for class_table and function_table are still referring to the values during preloading. If no request happens after that then these values will remain dangling pointers. If then the -v option on CLI or -h option (and possibly others) on CGI is provided, there is a double free. Fix it by nulling the pointers explicitly after preloading has finished to fix it for all SAPIs.