PR23945, NULL pointer dereference in readelf.c:slurp_hppa_unwind_table

	PR 23945
	* readelf.c (slurp_ia64_unwind_table): Don't call elf_ia64_reloc_type
	needlessly.
	(slurp_hppa_unwind_table): Use same range checks and error messages
	as slurp_ia64_unwind_table.
2 files changed