diff options
Diffstat (limited to 'elf/dl-sysdep.c')
| -rw-r--r-- | elf/dl-sysdep.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c index d06ce1754e..4c6b3d1a64 100644 --- a/elf/dl-sysdep.c +++ b/elf/dl-sysdep.c @@ -460,9 +460,21 @@ _dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz, total = temp[0].len + 1; else { - total = (1UL << (cnt - 2)) * (temp[0].len + temp[cnt - 1].len + 2); - for (n = 1; n + 1 < cnt; ++n) - total += (1UL << (cnt - 3)) * (temp[n].len + 1); + total = temp[0].len + temp[cnt - 1].len + 2; + if (cnt > 2) + { + total <<= 1; + for (n = 1; n + 1 < cnt; ++n) + total += temp[n].len + 1; + if (cnt > 3 + && (cnt >= sizeof (size_t) * 8 + || total + (sizeof (*result) << 3) + >= (1UL << (sizeof (size_t) * 8 - cnt + 3)))) + _dl_signal_error (ENOMEM, NULL, NULL, + N_("cannot create capability list")); + + total <<= cnt - 3; + } } /* The result structure: we use a very compressed way to store the |