From: Chris Liddell Date: Mon, 12 Nov 2018 17:21:33 +0000 (+0000) Subject: Bug 700153: restore: always check available stack Bug 700153: restore: always check available stack Previously, we were checking there was enough stack space available when the restore operation required a device change, but since we have to use Postscript to reset the userparams (ick!), we need the stack check even when not changing the device. https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=3005fcb9bb160af199e761e03bc70a9f249a987e --- diff -up ghostscript-9.07/psi/zdevice2.c.cve-2018-19475 ghostscript-9.07/psi/zdevice2.c --- ghostscript-9.07/psi/zdevice2.c.cve-2018-19475 2019-01-14 14:28:02.359841826 +0100 +++ ghostscript-9.07/psi/zdevice2.c 2019-01-14 14:29:29.939816553 +0100 @@ -276,7 +276,7 @@ restore_page_device(i_ctx_t *i_ctx_p, co samepagedevice = false; } - if (LockSafetyParams && !samepagedevice) { + if (LockSafetyParams) { const int required_ops = 512; const int required_es = 32;