elf/tlsdeschtab.h: Add the Malloc return value check in _dl_make_tlsdesc_dynamic()

Check the return value of malloc based on the function header comment of
 _dl_make_tlsdesc_dynamic(). If the return value fails, NULL is returned.

Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/elf/tlsdeschtab.h b/elf/tlsdeschtab.h
index 8c02e45a49..82733159e3 100644
--- a/elf/tlsdeschtab.h
+++ b/elf/tlsdeschtab.h
@@ -110,6 +110,8 @@ _dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset)
     }
 
   *entry = td = malloc (sizeof (struct tlsdesc_dynamic_arg));
+  if (! td)
+    return 0;
   /* This may be higher than the map's generation, but it doesn't
      matter much.  Worst case, we'll have one extra DTV update per
      thread.  */