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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-reloc.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-reloc.c')
| -rw-r--r-- | elf/dl-reloc.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c index 73d98f8..5c54310 100644 --- a/elf/dl-reloc.c +++ b/elf/dl-reloc.c @@ -185,8 +185,7 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[], if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_RELOC, 0)) _dl_debug_printf ("\nrelocation processing: %s%s\n", - l->l_name[0] ? l->l_name : rtld_progname, - lazy ? " (lazy)" : ""); + DSO_FILENAME (l->l_name), lazy ? " (lazy)" : ""); /* DT_TEXTREL is now in level 2 and might phase out at some time. But we rewrite the DT_FLAGS entry to a DT_TEXTREL entry to make @@ -276,7 +275,7 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[], errstring = N_("%s: no PLTREL found in object %s\n"); fatal: _dl_fatal_printf (errstring, - rtld_progname ?: "<program name unknown>", + RTLD_PROGNAME, l->l_name); } |