Reported by a customer, for at least one user it is 100% reproducible with standard Addins enabled. I was able to live view the crashes. But I can't reproduce it on our current Outlook test versions and the state is complicated to say the least.
Outlook 16.0.0.10404 with GpgOL 2.5.9
The problem appears to be that the mail is deconstructed _within_ the get_mail_from_control call. That leads to the crash in the end since we end up with a dangling pointer to a Non existing Mail object and when we then go to inquire the signature state of it we crash. The underlying reason is that the Mailitem in question is unloaded within the get_mail_from_control call, which might be an indication of a double release somewhere earlier in the code.
- We are destructing the Mailobject. But after the destruction there is still a reference to:
13:43:31/8076/DBG_MEM/0000012257acb990:_MailItem : 1
^ This is still from get_mail_from control
But the Mail was destroyed:
13:43:31/8076/DBG_MEM/Mail : 0
13:43:31/8076/DBG_OOM/mail.cpp:~Mail: releasing mailitem 13:43:31/8076/DBG_MEM/mail.cpp:~Mail:233: Object: 0000012257ac86f0 released ref: 0 13:43:31/8076/DBG_OOM/mail.cpp:~Mail: destroyed: 00000122614a1ea0 uuid: 8982732c-0423-4f67-9a2f-7bdc131a4e44 13:43:31/8076/DBG_OOM/mail.cpp:~Mail: nulling shared pointer 13:43:31/8076/TRACE/parsecontroller.cpp:~ParseController:150 enter 13:43:31/8076/parsecontroller.cpp:~ParseController 13:43:31/8076/TRACE/mimedataprovider.cpp:~MimeDataProvider:722 enter 13:43:31/8076/mimedataprovider.cpp:~MimeDataProvider 13:43:31/8076/mimedataprovider.cpp: rfc822 event Close 13:43:31/8076/TRACE/mimedataprovider.cpp:~MimeDataProvider:741: return 13:43:31/8076/attachment.cpp:~Attachment 13:43:31/8076/TRACE/mimedataprovider.cpp:~MimeDataProvider:722 enter 13:43:31/8076/mimedataprovider.cpp:~MimeDataProvider 13:43:31/8076/mimedataprovider.cpp: rfc822 event Close 13:43:31/8076/TRACE/mimedataprovider.cpp:~MimeDataProvider:741: return 13:43:31/8076/TRACE/parsecontroller.cpp:~ParseController:155: return 13:43:31/8076/TRACE/mail.cpp:releaseCurrentItem:4837 enter 13:43:31/8076/TRACE/mail.cpp:releaseCurrentItem:4840: return 13:43:31/8076/TRACE/mail.cpp:~Mail:259: lock 000000006b27e340 unlock. 13:43:31/8076/DBG_OOM/mail.cpp:~Mail: returning 13:43:31/8076/TRACE/mail.cpp:~Mail:262: return 13:43:31/8076/DBG_OOM/mailitem-events.cpp:Invoke: deletion done 13:43:31/8076/DBG_MEM/------------------------------MEMORY DUMP---------------------------------- 13:43:31/8076/DBG_MEM/-- C++ Objects -- 13:43:31/8076/DBG_MEM/ParseController : 0 13:43:31/8076/DBG_MEM/Attachment : 0 13:43:31/8076/DBG_MEM/MimeDataProvider : 0 13:43:31/8076/DBG_MEM/Mail : 0 13:43:31/8076/DBG_MEM/-- C++ End -- 13:43:31/8076/DBG_MEM/-- OL Objects -- 13:43:31/8076/DBG_MEM/0000012257acb990:_MailItem : 1 13:43:31/8076/DBG_MEM/00000122614f7520:ansi_charset_to_utf8 : 1 13:43:31/8076/DBG_MEM/000001225c14dc48:install_ApplicationEvents_sink : 1 13:43:31/8076/DBG_MEM/0000012261488860:install_ExplorersEvents_sink : 1 13:43:31/8076/DBG_MEM/000001225bcc8780:_Application : 2 13:43:31/8076/DBG_MEM/000001225c2b1ca0:_Explorer : 1 13:43:31/8076/DBG_MEM/00000122614393e0:install_ApplicationEvents_sink : 1 13:43:31/8076/DBG_MEM/000001225c2b1020:_Explorers : 1 13:43:31/8076/DBG_MEM/0000012261439440:install_ExplorerEvents_sink : 1 13:43:31/8076/DBG_MEM/000001225c14d858:install_ExplorerEvents_sink : 1 13:43:31/8076/DBG_MEM/000001225c2234c0:Picture : 1 13:43:31/8076/DBG_MEM/000001225c058f60:MAPIFolder : 1 13:43:31/8076/DBG_MEM/000001225be52608:install_FolderEvents_sink : 1 13:43:31/8076/DBG_MEM/00000122614a12a0:install_FolderEvents_sink : 1 13:43:31/8076/DBG_MEM/000001225c14da18:install_ExplorersEvents_sink : 1 13:43:31/8076/DBG_MEM/-- OL End -- 13:43:31/8076/DBG_MEM/-- Allocated Addresses -- 13:43:31/8076/DBG_MEM/windowmessages.cpp:do_in_ui_thread_async:616: 000001226146f2b0 13:43:31/8076/DBG_MEM/windowmessages.cpp:do_in_ui_thread_async:616: 00000122614aed90 13:43:31/8076/DBG_MEM/w32-gettext.cpp:load_domain:1378: 000001226145ad10 13:43:31/8076/DBG_MEM/w32-gettext.cpp:load_domain:1410: 00000122519b7470 13:43:31/8076/DBG_MEM/w32-gettext.cpp:load_domain:1345: 0000012261470a40 13:43:31/8076/DBG_MEM/-- Allocated Addresses End -- 13:43:31/8076/DBG_MEM/------------------------------MEMORY END ---------------------------------- 13:43:31/8076/TRACE/mailitem-events.cpp:Invoke:910: return 13:43:31/8076/DBG_MEM/ribbon-callbacks.cpp:get_mail_from_control:561: Object: 0000012257acb990 released ref: 0 13:43:31/8076/TRACE/mail.cpp:getCryptoSummary:3494 enter 13:43:31/8076/TRACE/mail.cpp:get_signature_level:3851 enter