stable inclusion
from stable-5.10.21
commit 76d92bf293c36a52ea5552919ac645ef2edee55d
bugzilla: 50609

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

commit ec98ea70 upstream.

As the iSCSI parameters are exported back through sysfs, it should be
enforcing that they never are more than PAGE_SIZE (which should be more
than enough) before accepting updates through netlink.

Change all iSCSI sysfs attributes to use sysfs_emit().

Cc: stable@vger.kernel.org
Reported-by: NAdam Nichols <adam@grimm-co.com>
Reviewed-by: NLee Duncan <lduncan@suse.com>
Reviewed-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: NMike Christie <michael.christie@oracle.com>
Signed-off-by: NChris Leech <cleech@redhat.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>