mainline inclusion
from mainline-v5.10-rc1
commit 7981593b
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I5C32F
CVE: CVE-2022-20166

--------------------------------------------------

Convert the unbound sprintf in hugetlb_report_node_meminfo to use
sysfs_emit_at so that no possible overrun of a PAGE_SIZE buf can occur.
Signed-off-by: NJoe Perches <joe@perches.com>
Acked-by: NMike Kravetz <mike.kravetz@oracle.com>
Link: https://lore.kernel.org/r/894b351b82da6013cde7f36ff4b5493cd0ec30d0.1600285923.git.joe@perches.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Conflicts:
	drivers/base/node.c
	include/linux/hugetlb.h
Signed-off-by: NGuo Mengqi <guomengqi3@huawei.com>
Reviewed-by: NWeilong Chen <chenweilong@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: NYongqiang Liu <liuyongqiang13@huawei.com>