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| author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2013-05-29 21:30:20 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2013-05-29 21:34:12 +0530 |
| commit | b937534868c8d7aec3b6d645bf5fd657bbfccd42 (patch) | |
| tree | 18936faaea13f35bcaf698f97447752c0e1c4567 /elf/dl-open.c | |
| parent | d0501bfbe228897c17875fcead8809d017135d6f (diff) | |
| download | glibc-b937534868c8d7aec3b6d645bf5fd657bbfccd42.zip glibc-b937534868c8d7aec3b6d645bf5fd657bbfccd42.tar.gz glibc-b937534868c8d7aec3b6d645bf5fd657bbfccd42.tar.bz2 | |
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-open.c')
| -rw-r--r-- | elf/dl-open.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/elf/dl-open.c b/elf/dl-open.c index 92fae7f..0f054bf 100644 --- a/elf/dl-open.c +++ b/elf/dl-open.c @@ -733,7 +733,7 @@ void _dl_show_scope (struct link_map *l, int from) { _dl_debug_printf ("object=%s [%lu]\n", - *l->l_name ? l->l_name : rtld_progname, l->l_ns); + DSO_FILENAME (l->l_name), l->l_ns); if (l->l_scope != NULL) for (int scope_cnt = from; l->l_scope[scope_cnt] != NULL; ++scope_cnt) { @@ -744,7 +744,7 @@ _dl_show_scope (struct link_map *l, int from) _dl_debug_printf_c (" %s", l->l_scope[scope_cnt]->r_list[cnt]->l_name); else - _dl_debug_printf_c (" %s", rtld_progname); + _dl_debug_printf_c (" %s", RTLD_PROGNAME); _dl_debug_printf_c ("\n"); } |