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glibc/dlfcn
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Florian Weimer 8dcb6d0af0 dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 
When audit modules are loaded, ld.so initialization is not yet
complete, and rtld_active () returns false even though ld.so is
mostly working.  Instead, the static dlopen hook is used, but that
does not work at all because this is not a static dlopen situation.

Commit 466c1ea15f ("dlfcn: Rework
static dlopen hooks") moved the hook pointer into _rtld_global_ro,
which means that separate protection is not needed anymore and the
hook pointer can be checked directly.

The guard for disabling libio vtable hardening in _IO_vtable_check
should stay for now.

Fixes commit 8e1472d2c1 ("ld.so:
Examine GLRO to detect inactive loader [BZ #20204]").

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2022-04-26 14:24:36 +02:00
..
bug-atexit1-lib.c [BZ #1158] 2005-09-28 00:14:50 +00:00
bug-atexit1.c Prefer https for Sourceware links 2017-11-16 11:49:26 +05:30
bug-atexit2-lib.c [BZ #1158] 2005-09-28 00:14:50 +00:00
bug-atexit2.c Prefer https for Sourceware links 2017-11-16 11:49:26 +05:30
bug-atexit3-lib.cc support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
bug-atexit3.c * dlfcn/Makefile: Add rules to build and run bug-atexit3. 2006-07-27 01:31:43 +00:00
bug-dl-leaf-lib-cb.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
bug-dl-leaf-lib.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
bug-dl-leaf.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
bug-dlopen1.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
bug-dlsym1-lib1.c
bug-dlsym1-lib2.c
bug-dlsym1.c 2004-10-18 Roland McGrath <roland@redhat.com> 2004-10-18 18:53:53 +00:00
default.c Remove trailing whitespace. 2013-06-05 20:44:03 +00:00
defaultmod1.c Update. 2003-08-15 03:58:56 +00:00
defaultmod2.c Update. 2003-08-15 03:58:56 +00:00
dladdr1.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dladdr.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dlclose.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dlerror.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dlerror.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dlfcn.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dlinfo.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dlmopen.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dlopen.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dlopenold.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dlsym.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
dlvsym.c dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078) 2022-04-26 14:24:36 +02:00
errmsg1.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
errmsg1mod.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
failtest.c
failtestmod.c Fix dlfcn/failtestmod.c warning. 2014-11-27 16:00:08 +00:00
glreflib1.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
glreflib2.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
glreflib3.c [BZ #4775, BZ #4776] 2007-07-12 18:17:11 +00:00
glrefmain.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc_dlerror_result.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libdl-compat.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
Makefile Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
modatexit.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
modcxaatexit.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
moddummy1.c Fix recursive dlopen. 2015-01-21 01:51:10 -05:00
moddummy2.c Fix recursive dlopen. 2015-01-21 01:51:10 -05:00
modstatic2.c dlfcn: Eliminate GLIBC_PRIVATE dependency from tststatic2 2021-06-03 09:12:05 +02:00
modstatic3.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
modstatic5.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
modstatic.c
sdlfreeres.c libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
tst-dladdr.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-dlinfo.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-rec-dlopen.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tstatexit.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tstcxaatexit.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tststatic2.c dlfcn: Eliminate GLIBC_PRIVATE dependency from tststatic2 2021-06-03 09:12:05 +02:00
tststatic3.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tststatic4.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tststatic5.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tststatic.c Convert dlfcn/tststatic to use test-skeleton. 2015-03-27 12:55:25 -07:00
Versions dlfcn: Move dlopen into libc 2021-06-03 08:26:04 +02:00