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| author | Ulrich Drepper <drepper@redhat.com> | 2006-07-26 08:21:54 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-07-26 08:21:54 +0000 |
| commit | 3a975ff5762e4c4368f20f7b7e2ed0982ee9332a (patch) | |
| tree | 81af55ae7db1b70fb9382297231f9d5700e7477a | |
| parent | a92b1166e524c44266493c972c89191d52f5c604 (diff) | |
| download | glibc-3a975ff5762e4c4368f20f7b7e2ed0982ee9332a.tar.gz glibc-3a975ff5762e4c4368f20f7b7e2ed0982ee9332a.tar.xz glibc-3a975ff5762e4c4368f20f7b7e2ed0982ee9332a.zip | |
* dlfcn/dlmopen.c (dlmopen_doit): Don't allow RTLD_GLOBAL to be
used when the namespace is not the base namespace.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | dlfcn/dlmopen.c | 17 |
2 files changed, 17 insertions, 5 deletions
diff --git a/ChangeLog b/ChangeLog index fde42b3dfa..2852fb1fdf 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2006-07-26 Ulrich Drepper <drepper@redhat.com> + + * dlfcn/dlmopen.c (dlmopen_doit): Don't allow RTLD_GLOBAL to be + used when the namespace is not the base namespace. + 2006-07-26 Gavin Romig-Koch <gavin@redhat.com> * stdlib/cxa_atexit.c (__new_exitfn_called): New variable. 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, |