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authorSiddhesh Poyarekar <siddhesh@redhat.com>2013-05-29 21:30:20 +0530
committerSiddhesh Poyarekar <siddhesh@redhat.com>2013-05-29 21:34:12 +0530
commitb937534868c8d7aec3b6d645bf5fd657bbfccd42 (patch)
tree18936faaea13f35bcaf698f97447752c0e1c4567 /elf/dl-deps.c
parentd0501bfbe228897c17875fcead8809d017135d6f (diff)
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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.
Diffstat (limited to 'elf/dl-deps.c')
-rw-r--r--elf/dl-deps.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/elf/dl-deps.c b/elf/dl-deps.c
index cd1c236..1c36f50 100644
--- a/elf/dl-deps.c
+++ b/elf/dl-deps.c
@@ -310,8 +310,7 @@ _dl_map_object_deps (struct link_map *map,
_dl_debug_printf ("load auxiliary object=%s"
" requested by file=%s\n",
name,
- l->l_name[0]
- ? l->l_name : rtld_progname);
+ DSO_FILENAME (l->l_name));
/* We must be prepared that the addressed shared
object is not available. */
@@ -337,8 +336,7 @@ _dl_map_object_deps (struct link_map *map,
_dl_debug_printf ("load filtered object=%s"
" requested by file=%s\n",
name,
- l->l_name[0]
- ? l->l_name : rtld_progname);
+ DSO_FILENAME (l->l_name));
/* For filter objects the dependency must be available. */
bool malloced;