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| author | Florian Weimer <fweimer@redhat.com> | 2024-10-25 16:50:10 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2024-10-25 16:50:10 +0200 |
| commit | e096b7a1896886eb7dd2732ccbf1184b0eec9a63 (patch) | |
| tree | 5103d7ac775aa666e88dec259263f223457e6969 /elf/rtld.c | |
| parent | 9897ced8e78db5d813166a7ccccfd5a42c69ef20 (diff) | |
| download | glibc-e096b7a1896886eb7dd2732ccbf1184b0eec9a63.tar.xz glibc-e096b7a1896886eb7dd2732ccbf1184b0eec9a63.zip | |
elf: Signal LA_ACT_CONSISTENT to auditors after RT_CONSISTENT switch
Auditors can call into the dynamic loader again if
LA_ACT_CONSISTENT, and those recursive calls could observe
r_state != RT_CONSISTENT.
We should consider failing dlopen/dlmopen/dlclose if
r_state != RT_CONSISTENT. The dynamic linker is probably not
in a state in which it can handle reentrant calls. This
needs further investigation.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'elf/rtld.c')
| -rw-r--r-- | elf/rtld.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/elf/rtld.c b/elf/rtld.c index cb6b61d570..cb6199aa61 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -2369,9 +2369,6 @@ dl_main (const ElfW(Phdr) *phdr, _dl_relocate_object might need to call `mprotect' for DT_TEXTREL. */ _dl_sysdep_start_cleanup (); - /* Auditing checkpoint: we have added all objects. */ - _dl_audit_activity_nsid (LM_ID_BASE, LA_ACT_CONSISTENT); - /* Notify the debugger all new objects are now ready to go. We must re-get the address since by now the variable might be in another object. */ r = _dl_debug_update (LM_ID_BASE); @@ -2379,6 +2376,9 @@ dl_main (const ElfW(Phdr) *phdr, _dl_debug_state (); LIBC_PROBE (init_complete, 2, LM_ID_BASE, r); + /* Auditing checkpoint: we have added all objects. */ + _dl_audit_activity_nsid (LM_ID_BASE, LA_ACT_CONSISTENT); + #if defined USE_LDCONFIG && !defined MAP_COPY /* We must munmap() the cache file. */ _dl_unload_cache (); |