200648 2019-08-12 16:55:44 -0700 REGRESSION (r248440): MiniBrowser no longer loads file:// URLs on launch 2022-02-10 16:46:54 -0800 1 1 1 Unclassified WebKit WebKit Misc. WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 200772 InRadar P2 Normal --- 1 pvollan pvollan benjamin bfulgham cdumez cmarcelo dbates ews-watchlist simon.fraser webkit-bug-importer oldest_to_newest 1560605 0 pvollan 2019-08-12 16:55:44 -0700 This is a regression from https://trac.webkit.org/changeset/248440/webkit. 1560606 1 pvollan 2019-08-12 16:56:15 -0700 rdar://problem/54168065 1560608 2 bfulgham 2019-08-12 16:57:43 -0700 Is this a race condition where we don't have the PID yet when we try to create the sandbox extension? 1560610 3 pvollan 2019-08-12 17:01:14 -0700 (In reply to Brent Fulgham from comment #2) > Is this a race condition where we don't have the PID yet when we try to > create the sandbox extension? I think the pid is valid, but I will double-check. 1560613 4 376109 pvollan 2019-08-12 17:10:11 -0700 Created attachment 376109 Patch 1560644 5 376109 bfulgham 2019-08-12 18:19:36 -0700 Comment on attachment 376109 Patch Oh! Got it. 1560774 6 pvollan 2019-08-13 07:32:13 -0700 (In reply to Brent Fulgham from comment #2) > Is this a race condition where we don't have the PID yet when we try to > create the sandbox extension? You are right, Brent. There seems to be a race between creating the sandbox extension when starting the load and getting the pid of the new WebContent process. 1560777 7 376162 pvollan 2019-08-13 07:51:22 -0700 Created attachment 376162 Patch 1560944 8 376162 bfulgham 2019-08-13 13:51:15 -0700 Comment on attachment 376162 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=376162&action=review > Source/WebKit/Shared/Cocoa/SandboxExtensionCocoa.mm:352 > + return false; Do we cleanly recover if this returns false? I.e., if the pid isn't available and so we don't create the extension, does WebKit try again later? 1560951 9 pvollan 2019-08-13 14:02:50 -0700 (In reply to Brent Fulgham from comment #8) > Comment on attachment 376162 [details] > Patch > > View in context: > https://bugs.webkit.org/attachment.cgi?id=376162&action=review > > > Source/WebKit/Shared/Cocoa/SandboxExtensionCocoa.mm:352 > > + return false; > > Do we cleanly recover if this returns false? I.e., if the pid isn't > available and so we don't create the extension, does WebKit try again later? If the pid is invalid, the patch falls back to creating an extension without the pid. I am not sure if this is the optimal solution. I am also looking into creating the extension with an audit token instead of a pid. Thanks for reviewing! 1561628 10 pvollan 2019-08-15 11:01:16 -0700 *** This bug has been marked as a duplicate of bug 200772 *** 376109 2019-08-12 17:10:11 -0700 2019-08-13 07:51:20 -0700 Patch bug-200648-20190812171011.patch text/plain 3582 pvollan SW5kZXg6IFNvdXJjZS9XVEYvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFNvdXJjZS9XVEYvQ2hh bmdlTG9nCShyZXZpc2lvbiAyNDg1NDYpCisrKyBTb3VyY2UvV1RGL0NoYW5nZUxvZwkod29ya2lu ZyBjb3B5KQpAQCAtMSwzICsxLDE1IEBACisyMDE5LTA4LTEyICBQZXIgQXJuZSBWb2xsYW4gIDxw dm9sbGFuQGFwcGxlLmNvbT4KKworICAgICAgICBSRUdSRVNTSU9OIChyMjQ4NDQwKTogTWluaUJy b3dzZXIgbm8gbG9uZ2VyIGxvYWRzIGZpbGU6Ly8gVVJMcyBvbiBsYXVuY2gKKyAgICAgICAgaHR0 cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTIwMDY0OAorICAgICAgICA8cmRh cjovL3Byb2JsZW0vNTQxNjgwNjU+CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BT ISkuCisKKyAgICAgICAgT25seSB1c2UgdGhlIFNQSSBkZWNsYXJlZCBpbiByMjQ4NDQwIGluIG5l 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