Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 623/667] mm/memremap: fix missing call to untrack_pfn() in pagemap_range() | Date | Tue, 7 Jun 2022 19:04:48 +0200 |
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From: Miaohe Lin <linmiaohe@huawei.com>
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@huawei.com Fixes: bca3feaa0764 ("mm/memory_hotplug: prevalidate the address range being added with platform") Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Muchun Song <songmuchun@bytedance.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- mm/memremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/memremap.c +++ b/mm/memremap.c @@ -245,7 +245,7 @@ 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();
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