From b937534868c8d7aec3b6d645bf5fd657bbfccd42 Mon Sep 17 00:00:00 2001 From: Siddhesh Poyarekar Date: Wed, 29 May 2013 21:30:20 +0530 Subject: Avoid crashing in LD_DEBUG when program name is unavailable Resolves: #15465 The program name may be unavailable if the user application tampers with argc and argv[]. Some parts of the dynamic linker caters for this while others don't, so this patch consolidates the check and fallback into a single macro and updates all users. --- sysdeps/x86_64/dl-machine.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'sysdeps/x86_64/dl-machine.h') diff --git a/sysdeps/x86_64/dl-machine.h b/sysdeps/x86_64/dl-machine.h index 4768c69544..116fed1b07 100644 --- a/sysdeps/x86_64/dl-machine.h +++ b/sysdeps/x86_64/dl-machine.h @@ -430,9 +430,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc, # endif strtab = (const char *) D_PTR (map, l_info[DT_STRTAB]); - _dl_error_printf (fmt, - rtld_progname ?: "", - strtab + refsym->st_name); + _dl_error_printf (fmt, RTLD_PROGNAME, strtab + refsym->st_name); } break; # ifndef RESOLVE_CONFLICT_FIND_MAP -- cgit 1.4.1