Created attachment 100408 [details] backtrace This was reported in https://bugzilla.gnome.org/show_bug.cgi?id=731211 And I can reproduce it by running pdftocairo -jpeg. The document that makes the crash reproducible is available at: http://dyb.com/micom/MAX220-MAX249-67423.pdf The issue happens with the page 9. A full backtrace is attached. poppler master (fed71eb) and cairo (2a7f133)
Encountered the same bug when opening the a pdf file (attached; filename: "00785838.pdf") using evince (v3.14.1) on Ubuntu 14.10, 64-bit. The bug is consistent and reproducible. Also attached is the full baktrace (filename: "backtrace-sid.log").
Created attachment 113411 [details] the PDF file which causes the crash
Created attachment 113412 [details] backtrace-sid.log
Created attachment 118128 [details] test program Seems to be a bug in cairo. Attached program causes the assertion. Compile with: gcc cairo-assert.c $(pkg-config --cflags --libs cairo)
This seems to be a duplicate of bug #78339 which has a couple of fixes suggested. A third one could be to return CAIRO_INT_STATUS_UNSUPPORTED; http://cgit.freedesktop.org/cairo/tree/src/cairo-spans-compositor.c#n560 if (need_clip_mask && (! extents->is_bounded || ! extents->clip->path)) extents->clip is dereferenced unconditionally in clip_is_region so it should not be NULL there.
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