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authorUlrich Drepper <drepper@redhat.com>2006-07-26 08:21:54 +0000
committerUlrich Drepper <drepper@redhat.com>2006-07-26 08:21:54 +0000
commit3a975ff5762e4c4368f20f7b7e2ed0982ee9332a (patch)
tree81af55ae7db1b70fb9382297231f9d5700e7477a /dlfcn
parenta92b1166e524c44266493c972c89191d52f5c604 (diff)
* dlfcn/dlmopen.c (dlmopen_doit): Don't allow RTLD_GLOBAL to be
used when the namespace is not the base namespace.
Diffstat (limited to 'dlfcn')
-rw-r--r--dlfcn/dlmopen.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/dlfcn/dlmopen.c b/dlfcn/dlmopen.c
index 0a6d47ea2e..0c6915493b 100644
--- a/dlfcn/dlmopen.c
+++ b/dlfcn/dlmopen.c
@@ -1,5 +1,5 @@
/* Load a shared object at run time.
- Copyright (C) 1995,96,97,98,99,2000,2003,2004 Free Software Foundation, Inc.
+ Copyright (C) 1995-2000,2003,2004,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -55,12 +55,19 @@ dlmopen_doit (void *a)
/* Non-shared code has no support for multiple namespaces. */
if (args->nsid != LM_ID_BASE)
+ {
# ifdef SHARED
- /* If trying to open the link map for the main executable the namespace
- must be the main one. */
- if (args->file == NULL)
+ /* If trying to open the link map for the main executable the namespace
+ must be the main one. */
+ if (args->file == NULL)
# endif
- GLRO(dl_signal_error) (EINVAL, NULL, NULL, N_("invalid namespace"));
+ GLRO(dl_signal_error) (EINVAL, NULL, NULL, N_("invalid namespace"));
+
+ /* It makes no sense to use RTLD_GLOBAL when loading a DSO into
+ a namespace other than the base namespace. */
+ if (__builtin_expect (args->mode & RTLD_GLOBAL, 0))
+ GLRO(dl_signal_error) (EINVAL, NULL, NULL, N_("invalid mode"));
+ }
args->new = GLRO(dl_open) (args->file ?: "", args->mode | __RTLD_DLOPEN,
args->caller,