radare2 4.5.0 misparses DWARF information in executable files, causing a segmentation fault in parse_typedef in type_dwarf.c via a malformed DW_AT_name in the .debug_info section.
Looks like a fix is set for the 4.6.0 milestone. No patch yet.
Patch was included in 4.5.1, and tree is clean. All done!