This is a note to let you know that I've just added the patch titled
mm/memremap: fix missing call to untrack_pfn() in pagemap_range()
to the 5.17-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:
mm-memremap-fix-missing-call-to-untrack_pfn-in-pagemap_range.patch
and it can be found in the queue-5.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a04e1928e2ead144dc2f369768bc0a0f3110af89 Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Date: Tue, 31 May 2022 20:26:43 +0800
Subject: mm/memremap: fix missing call to untrack_pfn() in pagemap_range()
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
commit a04e1928e2ead144dc2f369768bc0a0f3110af89 upstream.
We forget to call untrack_pfn() to pair with track_pfn_remap() when range
is not allowed to hotplug. Fix it by jump err_kasan.
Link: https://lkml.kernel.org/r/20220531122643.25249-1-linmiaohe@xxxxxxxxxx
Fixes: bca3feaa0764 ("mm/memory_hotplug: prevalidate the address range being added with platform")
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Acked-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Cc: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
mm/memremap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/memremap.c
+++ b/mm/memremap.c
@@ -228,7 +228,7 @@ static int pagemap_range(struct dev_page
if (!mhp_range_allowed(range->start, range_len(range), !is_private)) {
error = -EINVAL;
- goto err_pfn_remap;
+ goto err_kasan;
}
mem_hotplug_begin();
Patches currently in stable-queue which might be from linmiaohe@xxxxxxxxxx are
queue-5.17/mm-memremap-fix-missing-call-to-untrack_pfn-in-pagemap_range.patch
queue-5.17/mm-compaction-fast_find_migrateblock-should-return-pfn-in-the-target-zone.patch
queue-5.17/drivers-base-node.c-fix-compaction-sysfs-file-leak.patch
