55704 2011-03-03 13:47:48 -0800 QuickTime plugin should opt in to a 32-bit non-executable heap 2011-03-07 18:33:02 -0800 1 1 1 Unclassified WebKit WebKit2 528+ (Nightly build) Mac (Intel) OS X 10.6 RESOLVED FIXED P2 Major --- 1 dkaleta webkit-unassigned andersca ayao commit-queue dkaleta ike simon.fraser oldest_to_newest 361904 0 dkaleta 2011-03-03 13:47:48 -0800 Not all plugins should be opt out of 32-bit NX. 361908 1 84619 dkaleta 2011-03-03 13:54:33 -0800 Created attachment 84619 Patch 361914 2 84619 andersca 2011-03-03 13:59:36 -0800 Comment on attachment 84619 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=84619&action=review > WebKit2/UIProcess/Plugins/PluginProcessProxy.cpp:222 > +bool PluginProcessProxy::pluginNeedsExecutableHeap(const PluginInfoStore::Plugin& pluginInfo) const This doesn't need to be a member function of PluginProcessProxy, it can just be a static free function (and I'd put it above the call site. 361917 3 simon.fraser 2011-03-03 14:03:42 -0800 Bug title makes no sense. What is NX? 361923 4 dkaleta 2011-03-03 14:08:32 -0800 Simon, Take a look at this: <rdar://problem/8105706> and that: http://en.wikipedia.org/wiki/NX_bit 361928 5 simon.fraser 2011-03-03 14:11:55 -0800 You should spell out "non-executable", and clarify what 32-bit NX is. Does this only apply to 32-bit plug-in, or does it mean something else? And is the plugin opting out, or is the browser forcing this on the plug-in? 361996 6 84638 dkaleta 2011-03-03 15:18:25 -0800 Created attachment 84638 Proposed patch. 362164 7 ike 2011-03-03 18:08:20 -0800 This patch is confused. The ChangeLog states that Silverlight and QuickTime should opt *in* to a 32-bit NX heap, which means their heap should not be executable. But then it opts them *out* by making pluginNeedsExecutableHeap() claim that those two plugins need an executable heap — i.e. that they cannot run with NX. It also opts all other plugins into running with an NX heap. Assuming you're really trying to say "QuickTime and Silverlight should run with a non-executable heap (opt-in), and other plugins should have an executable one (opt-out)", you need to invert your true/false returns in pluginNeedsExecutableHeap. 362569 8 dkaleta 2011-03-04 09:41:00 -0800 I misunderstood this bug, let me clarify the ChangeLog and make changes to the patch. (In reply to comment #7) > This patch is confused. The ChangeLog states that Silverlight and QuickTime should opt *in* to a 32-bit NX heap, which means their heap should not be executable. But then it opts them *out* by making pluginNeedsExecutableHeap() claim that those two plugins need an executable heap — i.e. that they cannot run with NX. It also opts all other plugins into running with an NX heap. > > Assuming you're really trying to say "QuickTime and Silverlight should run with a non-executable heap (opt-in), and other plugins should have an executable one (opt-out)", you need to invert your true/false returns in pluginNeedsExecutableHeap. 362579 9 84766 dkaleta 2011-03-04 09:53:07 -0800 Created attachment 84766 Proposed patch. 362588 10 ike 2011-03-04 09:59:42 -0800 Looks good to me. 362841 11 84766 commit-queue 2011-03-04 18:14:29 -0800 Comment on attachment 84766 Proposed patch. Rejecting attachment 84766 from commit-queue. Failed to run "['./Tools/Scripts/webkit-patch', '--status-host=queues.webkit.org', '--bot-id=cr-jail-7', 'build-..." exit_code: 2 Last 500 characters of output: ....................................................................................................................................................................................................................... inspector ........... inspector/audits . inspector/audits/audits-panel-functional.html -> failed Exiting early after 1 failures. 12761 tests run. 301.30s total testing time 12760 test cases (99%) succeeded 1 test case (<1%) had incorrect layout 8 test cases (<1%) had stderr output Full output: http://queues.webkit.org/results/8082846 363748 12 andersca 2011-03-07 18:33:02 -0800 Committed r80523: <http://trac.webkit.org/changeset/80523> 84619 2011-03-03 13:54:33 -0800 2011-03-03 15:18:25 -0800 Patch textmate stdin Bts5SO.txt text/plain 2672 dkaleta 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