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| author | Ulrich Drepper <drepper@redhat.com> | 1999-07-23 22:58:50 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-07-23 22:58:50 +0000 |
| commit | 06535ae9487708dad9048552c9c92828d998a897 (patch) | |
| tree | 644ca3f36a0aca375c41e6bdded2d3904b8821e9 /elf/dl-open.c | |
| parent | fc9cfb28c05def1bfc0edc099d8001f83654fd10 (diff) | |
| download | glibc-06535ae9487708dad9048552c9c92828d998a897.zip glibc-06535ae9487708dad9048552c9c92828d998a897.tar.gz glibc-06535ae9487708dad9048552c9c92828d998a897.tar.bz2 | |
Update.
* posix/unistd.h: Move declaration of __libc_enable_secure to...
* include/unistd.h: ...here.
* elf/dl-open.c (dl_open_worker): If DST is used in SUID program punt.
* elf/dl-deps.c (expand_dst): Likewise.
* elf/dynamic-link.h: Set DT_SYMBOLIC, DT_TEXTREL, and DT_BIND_NOW
based on DT_FLAGS value.
* elf/do-lookup.h: Remove reference_name parameter, add undef_map.
Add test for symbols marked STV_HIDDEN.
* elf/dl-lookup.c (_dl_lookup_symbol): Remove reference_name parameter,
add undef_map. Compute reference_name locally. Update call to
do_lookup.
(_dl_lookup_symbol_skip): Likewise.
(_dl_lookup_versioned_symbol): Likewise.
(_dl_lookup_versioned_symbol_skip): Likewise.
* elf/dl-libc.c: Update call to _dl_lookup_*symbol.
* elf/dl-runtime.c: Likewise.
* elf/dl-sym.c: Likewise.
* elf/dl-symbol.c: Likewise.
* elf/ldsodefs.h: Adjust prototypes.
* elf/dl-reloc.c (RESOLV): Add test for STV_PROTECTED flag set and
handle appropriately. Add comment about DT_TEXTREL.
* elf/dl-runtime.c: Likewise.
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; |