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 @@ -214,7 +214,7 @@ 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();