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Description of problem: I have prepared a 200kB one-page PDF file that reliably triggers this bug. I will try to attach it or create another Bugzilla report with it. Version-Release number of selected component: evince-3.18.2-3.fc23 Additional info: reporter: libreport-2.6.4 backtrace_rating: 4 cmdline: evince /tmp/mozilla_przemek0/gear_guide.pdf crash_function: active_edges executable: /usr/bin/evince global_pid: 25870 kernel: 4.3.5-300.fc23.x86_64 runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 active_edges at cairo-polygon-intersect.c:1235 #1 intersection_sweep at cairo-polygon-intersect.c:1271 #2 _cairo_polygon_intersect at cairo-polygon-intersect.c:1466 #3 clip_and_composite_polygon at cairo-spans-compositor.c:946 #4 _cairo_spans_compositor_stroke at cairo-spans-compositor.c:1083 #5 _cairo_compositor_stroke at cairo-compositor.c:157 #6 _cairo_image_surface_stroke at cairo-image-surface.c:964 #7 _cairo_surface_stroke at cairo-surface.c:2296 #8 _cairo_gstate_stroke at cairo-gstate.c:1194 #9 _cairo_default_context_stroke at cairo-default-context.c:1010 Potential duplicate: bug 886677
Created attachment 1132538 [details] File: backtrace
Created attachment 1132539 [details] File: cgroup
Created attachment 1132540 [details] File: core_backtrace
Created attachment 1132541 [details] File: dso_list
Created attachment 1132542 [details] File: environ
Created attachment 1132543 [details] File: exploitable
Created attachment 1132544 [details] File: limits
Created attachment 1132545 [details] File: maps
Created attachment 1132546 [details] File: mountinfo
Created attachment 1132547 [details] File: namespaces
Created attachment 1132548 [details] File: open_fds
Created attachment 1132549 [details] File: proc_pid_status
Created attachment 1132550 [details] File: var_log_messages
Created attachment 1132551 [details] File: bug.pdf
Just took a quick look and the proximate cause is a null pointer in _cairo_polygon_intersect (polygon=0x7fffe0b52630, top=2250, left=0x7fffd031c240) at cairo-polygon-intersect.c:1235 1235 if unlikely ((right->deferred.other)) right is initialized from left->next, and right.deferred.other (cairo_bo_edge_t *) is null. I haven't traced the code that sets that structure yet.
This is a bug in cairo. It has been already fixed in cairo 1.14.4 which is not in Fedora yet. Thank you for the PDF, it helped me to find the upstream bug.
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