Sorry,
the crash is repeatable yes. It only occurs with 0.17.2 because I have no problem with 0.17.1. I use the same code for at least one year with no problem or crash. So this is the reason I think it could be a regression.

The file I tested is here: https://www.dropbox.com/s/nfpdqt9cqvmlfu4/test.CR2?dl=0

The backtrace:
#0 0x00007ffff58d8158 in LibRaw::vng_interpolate() () from /usr/lib/x86_64-linux-gnu/libraw.so.15
#1 0x00007ffff590f738 in LibRaw::dcraw_process() () from /usr/lib/x86_64-linux-gnu/libraw.so.15
#2 0x0000000000432b75 in readraw (name=0x1be3850 "/home/lock/Bureau/test.CR2", fit=0x703680 ) at io/image_formats_libraries.c:747
#3 0x00000000004334d4 in open_raw_files (name=0x1be3850 "/home/lock/Bureau/test.CR2", fit=0x703680 , type=0)
at io/image_formats_libraries.c:900
#4 0x000000000042cb13 in any_to_fits (imagetype=TYPERAW, source=0x1be3850 "/home/lock/Bureau/test.CR2", dest=0x703680 ) at io/conversion.c:797
#5 0x0000000000441cc3 in read_single_image (filename=0x1c0eaf0 "/home/lock/Bureau/test.CR2", dest=0x703680 , realname_out=0x7fffffffd3e8)
at io/single_image.c:120
#6 0x0000000000441d6e in open_single_image (filename=0x1c0eaf0 "/home/lock/Bureau/test.CR2") at io/single_image.c:145
#7 0x0000000000447cc7 in opendial () at gui/callbacks.c:1684
#8 0x0000000000447de2 in on_open1_activate (menuitem=0x13f3f80, user_data=0x0) at gui/callbacks.c:1721
#9 0x00007ffff5e91fa5 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffff5ea3fc1 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007ffff5eacd5c in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007ffff5ead08f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#13 0x00007ffff785b0be in gtk_widget_activate () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#14 0x00007ffff7732376 in gtk_menu_shell_activate_item () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#15 0x00007ffff77326ab in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#16 0x00007ffff7716991 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#17 0x00007ffff5e921d4 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#18 0x00007ffff5eac4b8 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#19 0x00007ffff5ead08f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#20 0x00007ffff7858cbc in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#21 0x00007ffff7713abe in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#22 0x00007ffff7715a42 in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#23 0x00007ffff724b795 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#24 0x00007ffff7278762 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#25 0x00007ffff5bbb1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007ffff5bbb400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007ffff5bbb722 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007ffff7714b75 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#29 0x000000000041d909 in main (argc=1, argv=0x7fffffffe198) at main.c:351