--- /dev/null
+From gregkh@linuxfoundation.org Thu Oct 12 18:44:27 2023
+From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Date: Thu, 12 Oct 2023 10:17:39 +0200
+Subject: lib/test_meminit: fix off-by-one error in test_pages()
+To: linux-kernel@vger.kernel.org
+Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Andrew Donnellan <ajd@linux.ibm.com>, Alexander Potapenko <glider@google.com>, Xiaoke Wang <xkernel.wang@foxmail.com>, stable@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>
+Message-ID: <2023101238-greasily-reiterate-aafc@gregkh>
+
+From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+commit efb78fa86e95 ("lib/test_meminit: allocate pages up to order
+MAX_ORDER") works great in kernels 6.4 and newer thanks to commit
+23baf831a32c ("mm, treewide: redefine MAX_ORDER sanely"), but for older
+kernels, the loop is off by one, which causes crashes when the test
+runs.
+
+Fix this up by changing "<= MAX_ORDER" "< MAX_ORDER" to allow the test
+to work properly for older kernel branches.
+
+Fixes: 7ad44409cd3b ("lib/test_meminit: allocate pages up to order MAX_ORDER")
+Cc: Andrew Donnellan <ajd@linux.ibm.com>
+Cc: Alexander Potapenko <glider@google.com>
+Cc: Xiaoke Wang <xkernel.wang@foxmail.com>
+Cc: <stable@vger.kernel.org>
+Cc: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ lib/test_meminit.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/lib/test_meminit.c
++++ b/lib/test_meminit.c
+@@ -86,7 +86,7 @@ static int __init test_pages(int *total_
+ int failures = 0, num_tests = 0;
+ int i;
+
+- for (i = 0; i <= MAX_ORDER; i++)
++ for (i = 0; i < MAX_ORDER; i++)
+ num_tests += do_alloc_pages_order(i, &failures);
+
+ REPORT_FAILURES_IN_FN();