From: <gregkh@linuxfoundation.org>
To: longman@redhat.com, ard.biesheuvel@linaro.org,
dave.hansen@linux.intel.com, gregkh@linuxfoundation.org,
tglx@linutronix.de
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "x86/efi: Free efi_pgd with free_pages()" has been added to the 4.15-stable tree
Date: Sun, 25 Mar 2018 20:51:14 +0200 [thread overview]
Message-ID: <152200387470152@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
x86/efi: Free efi_pgd with free_pages()
to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-efi-free-efi_pgd-with-free_pages.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 06ace26f4e6fcf747e890a39193be811777a048a Mon Sep 17 00:00:00 2001
From: Waiman Long <longman@redhat.com>
Date: Thu, 22 Mar 2018 15:18:53 -0400
Subject: x86/efi: Free efi_pgd with free_pages()
From: Waiman Long <longman@redhat.com>
commit 06ace26f4e6fcf747e890a39193be811777a048a upstream.
The efi_pgd is allocated as PGD_ALLOCATION_ORDER pages and therefore must
also be freed as PGD_ALLOCATION_ORDER pages with free_pages().
Fixes: d9e9a6418065 ("x86/mm/pti: Allocate a separate user PGD")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1521746333-19593-1-git-send-email-longman@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/platform/efi/efi_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -228,7 +228,7 @@ int __init efi_alloc_page_tables(void)
if (!pud) {
if (CONFIG_PGTABLE_LEVELS > 4)
free_page((unsigned long) pgd_page_vaddr(*pgd));
- free_page((unsigned long)efi_pgd);
+ free_pages((unsigned long)efi_pgd, PGD_ALLOCATION_ORDER);
return -ENOMEM;
}
Patches currently in stable-queue which might be from longman@redhat.com are
queue-4.15/x86-efi-free-efi_pgd-with-free_pages.patch
reply other threads:[~2018-03-25 18:51 UTC|newest]
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