xref: /OK3568_Linux_fs/buildroot/package/glibc/2.28-69-g1e5c5303a522764d7e9d2302a60e4a32cdb902f1/0012-Properly-initialize-audit-cookie-for-the-dynamic-loa.patch (revision 4882a59341e53eb6f0b4789bf948001014eff981)

From 7120e38a3d1b3a3fb0d687a0f811f54beaf90d09 Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Sat, 2 Nov 2019 21:55:35 +0100
Subject: [PATCH 12/20] Properly initialize audit cookie for the dynamic loader
 [BZ #25157]

The l_audit array is indexed by audit module, not audit function.

Change-Id: I180eb3573dc1c57433750f5d8cb18271460ba5f2
(cherry picked from commit c7bf5ceab6ec776ac7350d3b0190776bf532ac54)
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---
 elf/rtld.c              | 14 ++++-----
 elf/tst-auditmany.c     | 26 +++++++++++++++++
 elf/tst-auditmanymod.h  | 64 +++++++++++++++++++++++++++++++++++++++++
 elf/tst-auditmanymod1.c | 20 +++++++++++++
 elf/tst-auditmanymod2.c | 20 +++++++++++++
 elf/tst-auditmanymod3.c | 20 +++++++++++++
 elf/tst-auditmanymod4.c | 20 +++++++++++++
 elf/tst-auditmanymod5.c | 20 +++++++++++++
 elf/tst-auditmanymod6.c | 20 +++++++++++++
 elf/tst-auditmanymod7.c | 20 +++++++++++++
 elf/tst-auditmanymod8.c | 20 +++++++++++++
 elf/tst-auditmanymod9.c | 20 +++++++++++++
 12 files changed, 277 insertions(+), 7 deletions(-)
 create mode 100644 elf/tst-auditmany.c
 create mode 100644 elf/tst-auditmanymod.h
 create mode 100644 elf/tst-auditmanymod1.c
 create mode 100644 elf/tst-auditmanymod2.c
 create mode 100644 elf/tst-auditmanymod3.c
 create mode 100644 elf/tst-auditmanymod4.c
 create mode 100644 elf/tst-auditmanymod5.c
 create mode 100644 elf/tst-auditmanymod6.c
 create mode 100644 elf/tst-auditmanymod7.c
 create mode 100644 elf/tst-auditmanymod8.c
 create mode 100644 elf/tst-auditmanymod9.c

diff --git a/elf/rtld.c b/elf/rtld.c
index 10a08ec5..63525ad5 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -990,13 +990,7 @@ ERROR: audit interface '%s' requires version %d (maximum supported version %d);

       /* Store the pointer.  */
       if (err_str == NULL && largs.result != NULL)
-	{
-	  newp->fptr[cnt] = largs.result;
-
-	  /* The dynamic linker link map is statically allocated,
-	     initialize the data now.  */
-	  GL(dl_rtld_map).l_audit[cnt].cookie = (intptr_t) &GL(dl_rtld_map);
-	}
+	newp->fptr[cnt] = largs.result;
       else
 	newp->fptr[cnt] = NULL;
       ++cnt;
@@ -1012,6 +1006,12 @@ ERROR: audit interface '%s' requires version %d (maximum supported version %d);
     *last_audit = GLRO(dl_audit) = &newp->ifaces;
   else
     *last_audit = (*last_audit)->next = &newp->ifaces;
+
+  /* The dynamic linker link map is statically allocated, initialize
+     the data now.  */
+  GL (dl_rtld_map).l_audit[GLRO (dl_naudit)].cookie
+    = (intptr_t) &GL (dl_rtld_map);
+
   ++GLRO(dl_naudit);

   /* Mark the DSO as being used for auditing.  */
diff --git a/elf/tst-auditmany.c b/elf/tst-auditmany.c
new file mode 100644
index 00000000..9d68105b
--- /dev/null
+++ b/elf/tst-auditmany.c
@@ -0,0 +1,26 @@
+/* Check cookie initialization for many auditors.  Main program.
+   Copyright (C) 2019 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/>.  */
+
+/* It does not make sense to use the test harness for this test
+   because the testing happens in auditors.  */
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/elf/tst-auditmanymod.h b/elf/tst-auditmanymod.h
new file mode 100644
index 00000000..d1d89e08
--- /dev/null
+++ b/elf/tst-auditmanymod.h
@@ -0,0 +1,64 @@
+/* Check cookie initialization for many auditors.  Auditor template.
+   Copyright (C) 2019 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/>.  */
+
+/* The macro MOD must be defined to the number of this auditor (an
+   integer) before including this file.  */
+
+#include <link.h>
+#include <stdio.h>
+#include <unistd.h>
+
+/* Error counter for delayed error reporting.  */
+static int errors;
+
+unsigned int
+la_version (unsigned int version)
+{
+  return version;
+}
+
+unsigned int
+la_objopen (struct link_map *map, Lmid_t lmid,
+            uintptr_t *cookie)
+{
+  struct link_map *cookie_map = (struct link_map *) *cookie;
+  printf ("info: %d, la_objopen: map=%p name=%s cookie=%p:%p diff=%td\n",
+          MOD, map, map->l_name, cookie, cookie_map,
+          (char *) cookie - (char *) map);
+  fflush (stdout);
+  if (map != cookie_map)
+    {
+      printf ("error: %d, la_objopen:"
+              " map address does not match cookie value\n",
+              MOD);
+      fflush (stdout);
+      ++errors;
+    }
+  return 0;
+}
+
+extern unsigned int
+la_objclose (uintptr_t *__cookie)
+{
+  if (errors != 0)
+    {
+      printf ("error: exiting due to previous errors");
+      _exit (1);
+    }
+  return 0;
+}
diff --git a/elf/tst-auditmanymod1.c b/elf/tst-auditmanymod1.c
new file mode 100644
index 00000000..c7de49d4
--- /dev/null
+++ b/elf/tst-auditmanymod1.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 1.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 1
+#include "tst-auditmanymod.h"
diff --git a/elf/tst-auditmanymod2.c b/elf/tst-auditmanymod2.c
new file mode 100644
index 00000000..4254f022
--- /dev/null
+++ b/elf/tst-auditmanymod2.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 2.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 2
+#include "tst-auditmanymod.h"
diff --git a/elf/tst-auditmanymod3.c b/elf/tst-auditmanymod3.c
new file mode 100644
index 00000000..ee90f4eb
--- /dev/null
+++ b/elf/tst-auditmanymod3.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 3.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 3
+#include "tst-auditmanymod.h"
diff --git a/elf/tst-auditmanymod4.c b/elf/tst-auditmanymod4.c
new file mode 100644
index 00000000..6379fa1d
--- /dev/null
+++ b/elf/tst-auditmanymod4.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 4.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 4
+#include "tst-auditmanymod.h"
diff --git a/elf/tst-auditmanymod5.c b/elf/tst-auditmanymod5.c
new file mode 100644
index 00000000..17c0f617
--- /dev/null
+++ b/elf/tst-auditmanymod5.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 5.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 5
+#include "tst-auditmanymod.h"
diff --git a/elf/tst-auditmanymod6.c b/elf/tst-auditmanymod6.c
new file mode 100644
index 00000000..86bc6801
--- /dev/null
+++ b/elf/tst-auditmanymod6.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 6.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 6
+#include "tst-auditmanymod.h"
diff --git a/elf/tst-auditmanymod7.c b/elf/tst-auditmanymod7.c
new file mode 100644
index 00000000..92b0bf60
--- /dev/null
+++ b/elf/tst-auditmanymod7.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 7.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 7
+#include "tst-auditmanymod.h"
diff --git a/elf/tst-auditmanymod8.c b/elf/tst-auditmanymod8.c
new file mode 100644
index 00000000..d42f884d
--- /dev/null
+++ b/elf/tst-auditmanymod8.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 8.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 8
+#include "tst-auditmanymod.h"
diff --git a/elf/tst-auditmanymod9.c b/elf/tst-auditmanymod9.c
new file mode 100644
index 00000000..6bee81d6
--- /dev/null
+++ b/elf/tst-auditmanymod9.c
@@ -0,0 +1,20 @@
+/* Check cookie initialization for many auditors.  Auditor 9.
+   Copyright (C) 2019 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/>.  */
+
+#define MOD 9
+#include "tst-auditmanymod.h"
--
2.20.1