stable inclusion
from stable-v5.10.125
commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859
category: bugfix
bugzilla: 187376, https://gitee.com/src-openeuler/kernel/issues/I5IM3T
CVE: CVE-2022-2327

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=df3f3bb5059d20ef094d6b2f0256c4bf4127a859

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

Any read/write should grab current->nsproxy, denoted by IO_WQ_WORK_FILES
as it refers to current->files as well, and connect and recv/recvmsg,
send/sendmsg should grab current->fs which is denoted by IO_WQ_WORK_FS.

No upstream commit exists for this issue.
Reported-by: NBing-Jhong Billy Jheng <billy@starlabs.sg>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NYu Kuai <yukuai3@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>