This is really a strange scenario - however in the end it occasionally caused segmentation faults...
vendor/bin/phpunit --no-coverage --filter=/doctypeAndEntityAreRemoved/
PHPUnit 6.5.14 by Sebastian Bergmann and contributors.
[1] 63007 segmentation fault vendor/bin/phpunit --no-coverage --filter=/doctypeAndEntityAreRemoved/
PR #53 adds corresponding entityTest.svg (used in test-case doctypeAndEntityAreRemoved) which defined a XML entity using <!DOCTYPE fortiguard [ <!ENTITY lab "cool, text as an image">]>.
It turned out that the sequence of removing doctype, followed by \DOMXPath on the document causes a segmentation fault (at least on PHP 7.2 and 7.4, using libxml2 2.9.10 (always) and 2.9.12 (occasionally)). This is the call stack:
This is really a strange scenario - however in the end it occasionally caused segmentation faults...
PR #53 adds corresponding
entityTest.svg(used in test-casedoctypeAndEntityAreRemoved) which defined a XML entity using<!DOCTYPE fortiguard [ <!ENTITY lab "cool, text as an image">]>.It turned out that the sequence of removing doctype, followed by
\DOMXPathon the document causes a segmentation fault (at least on PHP 7.2 and 7.4, using libxml2 2.9.10 (always) and 2.9.12 (occasionally)). This is the call stack: