diff --git a/elf/dl-tunables.c b/elf/dl-tunables.c
index 03e1a68675..614ac9c047 100644
--- a/elf/dl-tunables.c
+++ b/elf/dl-tunables.c
@@ -32,6 +32,7 @@
 #include <ldsodefs.h>
 #include <array_length.h>
 #include <dl-minimal-malloc.h>
+#include <dl-symbol-redir-ifunc.h>
 
 #define TUNABLES_INTERNAL 1
 #include "dl-tunables.h"
@@ -223,6 +224,7 @@ parse_tunables_string (const char *valstring, struct tunable_toset_t *tunables)
 	    {
 	      tunables[ntunables++] =
 		(struct tunable_toset_t) { cur, value, p - value };
+
 	      break;
 	    }
 	}
@@ -234,23 +236,27 @@ parse_tunables_string (const char *valstring, struct tunable_toset_t *tunables)
 static void
 parse_tunables (const char *valstring)
 {
-  struct tunable_toset_t tunables[tunables_list_size];
-  int ntunables = parse_tunables_string (valstring, tunables);
-  if (ntunables == -1)
+  struct tunable_toset_t tunables[tunables_list_size] = { 0 };
+  if (parse_tunables_string (valstring, tunables) == -1)
     {
       _dl_error_printf (
         "WARNING: ld.so: invalid GLIBC_TUNABLES `%s': ignored.\n", valstring);
       return;
     }
 
-  for (int i = 0; i < ntunables; i++)
-    if (!tunable_initialize (tunables[i].t, tunables[i].value,
-			     tunables[i].len))
-      _dl_error_printf ("WARNING: ld.so: invalid GLIBC_TUNABLES value `%.*s' "
-		       "for option `%s': ignored.\n",
-		       (int) tunables[i].len,
-		       tunables[i].value,
-		       tunables[i].t->name);
+  for (int i = 0; i < tunables_list_size; i++)
+    {
+      if (tunables[i].t == NULL)
+	continue;
+
+      if (!tunable_initialize (tunables[i].t, tunables[i].value,
+			       tunables[i].len))
+	_dl_error_printf ("WARNING: ld.so: invalid GLIBC_TUNABLES value `%.*s' "
+			  "for option `%s': ignored.\n",
+			  (int) tunables[i].len,
+			  tunables[i].value,
+			  tunables[i].t->name);
+    }
 }
 
 /* Initialize the tunables list from the environment.  For now we only use the
diff --git a/elf/tst-tunables.c b/elf/tst-tunables.c
index 095b5c81d9..dff34ed748 100644
--- a/elf/tst-tunables.c
+++ b/elf/tst-tunables.c
@@ -17,6 +17,10 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <array_length.h>
+/* The test uses the tunable_list size, which is only exported for
+   ld.so.  This will result in a copy of tunable_list, which is ununsed by
+   the test itself.  */
+#define TUNABLES_INTERNAL 1
 #include <dl-tunables.h>
 #include <getopt.h>
 #include <intprops.h>
@@ -24,12 +28,13 @@
 #include <stdlib.h>
 #include <support/capture_subprocess.h>
 #include <support/check.h>
+#include <support/support.h>
 
 static int restart;
 #define CMDLINE_OPTIONS \
   { "restart", no_argument, &restart, 1 },
 
-static const struct test_t
+static struct test_t
 {
   const char *name;
   const char *value;
@@ -284,6 +289,29 @@ static const struct test_t
     0,
     0,
   },
+  /* Also check for repeated tunables with a count larger than the total number
+     of tunables.  */
+  {
+    "GLIBC_TUNABLES",
+    NULL,
+    2,
+    0,
+    0,
+  },
+  {
+    "GLIBC_TUNABLES",
+    NULL,
+    1,
+    0,
+    0,
+  },
+  {
+    "GLIBC_TUNABLES",
+    NULL,
+    0,
+    0,
+    0,
+  },
 };
 
 static int
@@ -327,6 +355,37 @@ do_test (int argc, char *argv[])
     spargv[i] = NULL;
   }
 
+  /* Create a tunable line with the duplicate values with a total number
+     larger than the different number of tunables.  */
+  {
+    enum { tunables_list_size = array_length (tunable_list) };
+    const char *value = "";
+    for (int i = 0; i < tunables_list_size; i++)
+      value = xasprintf ("%sglibc.malloc.check=2%c",
+			 value,
+			 i == (tunables_list_size - 1) ? '\0' : ':');
+    tests[33].value = value;
+  }
+  /* Same as before, but the last tunable values is differen than the
+     rest.  */
+  {
+    enum { tunables_list_size = array_length (tunable_list) };
+    const char *value = "";
+    for (int i = 0; i < tunables_list_size - 1; i++)
+      value = xasprintf ("%sglibc.malloc.check=2:", value);
+    value = xasprintf ("%sglibc.malloc.check=1", value);
+    tests[34].value = value;
+  }
+  /* Same as before, but with an invalid last entry.  */
+  {
+    enum { tunables_list_size = array_length (tunable_list) };
+    const char *value = "";
+    for (int i = 0; i < tunables_list_size - 1; i++)
+      value = xasprintf ("%sglibc.malloc.check=2:", value);
+    value = xasprintf ("%sglibc.malloc.check=1=1", value);
+    tests[35].value = value;
+  }
+
   for (int i = 0; i < array_length (tests); i++)
     {
       snprintf (nteststr, sizeof nteststr, "%d", i);
diff --git a/sysdeps/aarch64/multiarch/memset_generic.S b/sysdeps/aarch64/multiarch/memset_generic.S
index 81748bdbce..e125a5ed85 100644
--- a/sysdeps/aarch64/multiarch/memset_generic.S
+++ b/sysdeps/aarch64/multiarch/memset_generic.S
@@ -33,3 +33,7 @@
 #endif
 
 #include <../memset.S>
+
+#if IS_IN (rtld)
+strong_alias (memset, __memset_generic)
+#endif
diff --git a/sysdeps/sparc/sparc64/rtld-memset.c b/sysdeps/sparc/sparc64/rtld-memset.c
index 55f3835790..a19202a620 100644
--- a/sysdeps/sparc/sparc64/rtld-memset.c
+++ b/sysdeps/sparc/sparc64/rtld-memset.c
@@ -1 +1,4 @@
 #include <string/memset.c>
+#if IS_IN(rtld)
+strong_alias (memset, __memset_ultra1)
+#endif
