Version-Release number of selected component: gnome-calendar-3.22.1-1.fc25 Additional info: reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: /usr/bin/gnome-calendar --gapplication-service crash_function: gcal_manager_refresh executable: /usr/bin/gnome-calendar global_pid: 2056 kernel: 4.8.8-300.fc25.x86_64 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (4 frames) #0 gcal_manager_refresh at gcal-manager.c:1420 #1 refresh_sources at gcal-window.c:1008 #6 g_main_context_iteration at gmain.c:3990 #7 g_application_run at gapplication.c:2381 Potential duplicate: bug 1352203
Created attachment 1225693 [details] File: backtrace
Created attachment 1225694 [details] File: cgroup
Created attachment 1225695 [details] File: core_backtrace
Created attachment 1225696 [details] File: dso_list
Created attachment 1225697 [details] File: environ
Created attachment 1225698 [details] File: exploitable
Created attachment 1225699 [details] File: limits
Created attachment 1225700 [details] File: maps
Created attachment 1225701 [details] File: mountinfo
Created attachment 1225702 [details] File: namespaces
Created attachment 1225703 [details] File: open_fds
Created attachment 1225704 [details] File: proc_pid_status
Created attachment 1225705 [details] File: var_log_messages
*** Bug 1408155 has been marked as a duplicate of this bug. ***
Created attachment 1285056 [details] Output of valgrind with $ G_SLICE=always-malloc valgrind gnome-calendar &>log.txt This crasher is a result of a use-after-free. See attached valgrind log for details.
I filled it upstream [1] and added a patch for it there as well. [1] https://bugzilla.gnome.org/show_bug.cgi?id=783441
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