Bug #74606 [Opn->Csd]: Segfault within try/catch/finally nesting in Generators

Edit report at https://bugs.php.net/bug.php?id=74606&edit=1 ID: 74606 Updated by: bwoebi@php.net Reported by: bwoebi@php.net Summary: Segfault within try/catch/finally nesting in Generators -Status: Open +Status: Closed Type: Bug Package: Reproducible crash Operating System: Irrelevant PHP Version: 7.1Git-2017-05-17 (Git) Block user comment: N Private report: N New Comment: Automatic comment on behalf of bobwei9@hotmail.com Revision: http://git.php.net/?p=php-src.git;a=commit;h=649494c0ee54102ac4a6c62fd5faf38143efb107 Log: Fixed bug #74606 (Segfault within try/catch/finally nesting in Generators) Previous Comments: ------------------------------------------------------------------------ [2017-05-17 17:52:08] bwoebi@php.net Description: ------------ Nesting a try/finally inside a try/catch in a loop within a Generator will cause too many live vars to be cleaned up (i.e. outside its live range). Test script: --------------- function gen() { $array = ["foo"]; $array[] = "bar"; foreach ($array as $item) { try { try { yield; } finally { echo "fin $item\n"; } } catch (\Exception $e) { echo "catch\n"; continue; } } } $g = gen(); $g->throw(new Exception); Expected result: ---------------- fin foo catch fin bar Actual result: -------------- fin foo catch fin bar <segmentation fault> ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=74606&edit=1