diff options
Diffstat (limited to 'elf/dl-open.c')
| -rw-r--r-- | elf/dl-open.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/elf/dl-open.c b/elf/dl-open.c index a3cd8a0..097fd37 100644 --- a/elf/dl-open.c +++ b/elf/dl-open.c @@ -20,9 +20,10 @@ #include <assert.h> #include <dlfcn.h> #include <errno.h> +#include <libintl.h> #include <stdlib.h> #include <string.h> -#include <libintl.h> +#include <unistd.h> #include <sys/mman.h> /* Check whether MAP_COPY is defined. */ #include <sys/param.h> #include <bits/libc-lock.h> @@ -100,6 +101,12 @@ dl_open_worker (void *a) struct link_map *call_map; char *new_file; + /* DSTs must not appear in SUID/SGID programs. */ + if (__libc_enable_secure) + /* This is an error. */ + _dl_signal_error (0, "dlopen", + "DST not allowed in SUID/SGID programs"); + /* We have to find out from which object the caller is calling. Find the highest-addressed object that ADDRESS is not below. */ call_map = NULL; |