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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-10-15 10:44:49 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2022-01-04 04:56:08 -0800 |
| commit | bfb5ed5df3dd4d9507b4922248dc445b690d19c0 (patch) | |
| tree | 844dc10ce1770a0d44c8d372e021d3053c2e7f43 /elf/dl-load.c | |
| parent | 7ac2bee49540b87e6e1c309e23ea170b0fa6e5df (diff) | |
| download | glibc-bfb5ed5df3dd4d9507b4922248dc445b690d19c0.zip glibc-bfb5ed5df3dd4d9507b4922248dc445b690d19c0.tar.gz glibc-bfb5ed5df3dd4d9507b4922248dc445b690d19c0.tar.bz2 | |
elf: Also try DT_RUNPATH for LD_AUDIT dlopen [BZ #28455]
DT_RUNPATH is only used to find the immediate dependencies of the
executable or shared object containing the DT_RUNPATH entry. Update
LD_AUDIT dlopen call to try the DT_RUNPATH entry of the executable.
Add tst-audit14a, which is copied from tst-audit14, to DT_RUNPATH and
build tst-audit14 with -Wl,--disable-new-dtags to test DT_RPATH.
This partially fixes BZ #28455.
Diffstat (limited to 'elf/dl-load.c')
| -rw-r--r-- | elf/dl-load.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c index ddc4295..12744ca 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -2111,6 +2111,21 @@ _dl_map_object (struct link_map *loader, const char *name, &main_map->l_rpath_dirs, &realname, &fb, loader ?: main_map, LA_SER_RUNPATH, &found_other_class); + + /* Also try DT_RUNPATH in the executable for LD_AUDIT dlopen + call. */ + if (__glibc_unlikely (mode & __RTLD_AUDIT) + && fd == -1 && !did_main_map + && main_map != NULL && main_map->l_type != lt_loaded) + { + struct r_search_path_struct l_rpath_dirs; + l_rpath_dirs.dirs = NULL; + if (cache_rpath (main_map, &l_rpath_dirs, + DT_RUNPATH, "RUNPATH")) + fd = open_path (name, namelen, mode, &l_rpath_dirs, + &realname, &fb, loader ?: main_map, + LA_SER_RUNPATH, &found_other_class); + } } /* Try the LD_LIBRARY_PATH environment variable. */ |