glibc/glibc-upstream-2.34-153.patch
Carlos O'Donell a8db42ba53 Sync with upstream branch release/2.34/master
Upstream commit: 71326f1f2fd09dafb9c34404765fb88129e94237

- nptl: Fix pthread_cancel cancelhandling atomic operations
- mips: Fix mips64n32 64 bit time_t stat support (BZ#29069)
- hurd: Fix arbitrary error code
- nptl: Handle spurious EINTR when thread cancellation is disabled (BZ#29029)
- S390: Add new s390 platform z16.
- NEWS: Update fixed bug list for LD_AUDIT backports.
- hppa: Fix bind-now audit (BZ #28857)
- elf: Replace tst-audit24bmod2.so with tst-audit24bmod2
- Fix elf/tst-audit25a with default bind now toolchains
- elf: Fix runtime linker auditing on aarch64 (BZ #26643)
- elf: Issue la_symbind for bind-now (BZ #23734)
- elf: Fix initial-exec TLS access on audit modules (BZ #28096)
- elf: Add la_activity during application exit
- elf: Do not fail for failed dlmopen on audit modules (BZ #28061)
- elf: Issue audit la_objopen for vDSO
- elf: Add audit tests for modules with TLSDESC
- elf: Avoid unnecessary slowdown from profiling with audit (BZ#15533)
- elf: Add _dl_audit_pltexit
- elf: Add _dl_audit_pltenter
- elf: Add _dl_audit_preinit
- elf: Add _dl_audit_symbind_alt and _dl_audit_symbind
- elf: Add _dl_audit_objclose
- elf: Add _dl_audit_objsearch
- elf: Add _dl_audit_activity_map and _dl_audit_activity_nsid
- elf: Add _dl_audit_objopen
- elf: Move la_activity (LA_ACT_ADD) after _dl_add_to_namespace_list() (BZ #28062)
- elf: Move LAV_CURRENT to link_lavcurrent.h
- elf: Fix elf_get_dynamic_info() for bootstrap
- elf: Fix dynamic-link.h usage on rtld.c
- elf: Fix elf_get_dynamic_info definition
- elf: Avoid nested functions in the loader [BZ #27220]
- powerpc: Delete unneeded ELF_MACHINE_BEFORE_RTLD_RELOC
- hppa: Use END instead of PSEUDO_END in swapcontext.S
- hppa: Implement swapcontext in assembler (bug 28960)

Reviewed-by: Florian Weimer <fweimer at redhat.com>
2022-04-22 10:08:16 -04:00

168 lines
5.0 KiB
Diff

commit 2255621f0e2cd07f7a6147928ce644e13526ffb6
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed Jun 30 17:33:57 2021 -0300
elf: Do not fail for failed dlmopen on audit modules (BZ #28061)
The dl_main sets the LM_ID_BASE to RT_ADD just before starting to
add load new shared objects. The state is set to RT_CONSISTENT just
after all objects are loaded.
However if a audit modules tries to dlmopen an inexistent module,
the _dl_open will assert that the namespace is in an inconsistent
state.
This is different than dlopen, since first it will not use
LM_ID_BASE and second _dl_map_object_from_fd is the sole responsible
to set and reset the r_state value.
So the assert on _dl_open can not really be seen if the state is
consistent, since _dt_main resets it. This patch removes the assert.
Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
(cherry picked from commit 484e672ddabe0a919a692520e6ac8f2580866235)
Resolved conflicts:
elf/Makefile
elf/dl-open.c
diff --git a/elf/Makefile b/elf/Makefile
index 465442bf59fa9794..91b2269257523a64 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -366,6 +366,7 @@ tests += \
tst-audit17 \
tst-audit18 \
tst-audit19b \
+ tst-audit20 \
tst-audit22 \
tst-auditmany \
tst-auxobj \
@@ -650,6 +651,7 @@ modules-names = \
tst-auditmod18 \
tst-auditmod19a \
tst-auditmod19b \
+ tst-auditmod20 \
tst-auditmod22 \
tst-auxvalmod \
tst-big-note-lib \
@@ -2037,6 +2039,9 @@ $(objpfx)tst-audit19b.out: $(objpfx)tst-auditmod19b.so
$(objpfx)tst-audit19b: $(objpfx)tst-audit19bmod.so
tst-audit19b-ARGS = -- $(host-test-program-cmd)
+$(objpfx)tst-audit20.out: $(objpfx)tst-auditmod20.so
+tst-audit20-ENV = LD_AUDIT=$(objpfx)tst-auditmod20.so
+
$(objpfx)tst-audit22.out: $(objpfx)tst-auditmod22.so
tst-audit22-ARGS = -- $(host-test-program-cmd)
diff --git a/elf/dl-open.c b/elf/dl-open.c
index 3f01aa480730da13..bc6872632880634e 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -914,8 +914,6 @@ no more namespaces available for dlmopen()"));
the flag here. */
}
- assert (_dl_debug_initialize (0, args.nsid)->r_state == RT_CONSISTENT);
-
/* Release the lock. */
__rtld_lock_unlock_recursive (GL(dl_load_lock));
diff --git a/elf/tst-audit20.c b/elf/tst-audit20.c
new file mode 100644
index 0000000000000000..6f39ccee865b012b
--- /dev/null
+++ b/elf/tst-audit20.c
@@ -0,0 +1,25 @@
+/* Check dlopen failure on audit modules.
+ Copyright (C) 2021 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+static int
+do_test (void)
+{
+ return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/elf/tst-auditmod20.c b/elf/tst-auditmod20.c
new file mode 100644
index 0000000000000000..c57e50ee4e88dd6b
--- /dev/null
+++ b/elf/tst-auditmod20.c
@@ -0,0 +1,57 @@
+/* Check dlopen failure on audit modules.
+ Copyright (C) 2021 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <dlfcn.h>
+#include <link.h>
+#include <stdlib.h>
+
+unsigned int
+la_version (unsigned int v)
+{
+ return LAV_CURRENT;
+}
+
+static void
+check (void)
+{
+ {
+ void *mod = dlopen ("nonexistent.so", RTLD_NOW);
+ if (mod != NULL)
+ abort ();
+ }
+
+ {
+ void *mod = dlmopen (LM_ID_BASE, "nonexistent.so", RTLD_NOW);
+ if (mod != NULL)
+ abort ();
+ }
+}
+
+void
+la_activity (uintptr_t *cookie, unsigned int flag)
+{
+ if (flag != LA_ACT_CONSISTENT)
+ return;
+ check ();
+}
+
+void
+la_preinit (uintptr_t *cookie)
+{
+ check ();
+}