dccp: Call security_inet_conn_request() after setting IPv4 addresses.

stable inclusion
from stable-v6.6.2
commit 0a2bcc3bb7d32f6e9ee8f31c7a3f43d1fe00c342
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8IW7G

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0a2bcc3bb7d32f6e9ee8f31c7a3f43d1fe00c342



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[ Upstream commit fa2df45af13091f76b89adb84a28f13818d5d631 ]

Initially, commit 4237c75c ("[MLSXFRM]: Auto-labeling of child
sockets") introduced security_inet_conn_request() in some functions
where reqsk is allocated.  The hook is added just after the allocation,
so reqsk's IPv4 remote address was not initialised then.

However, SELinux/Smack started to read it in netlbl_req_setattr()
after the cited commits.

This bug was partially fixed by commit 284904aa ("lsm: Relocate
the IPv4 security_inet_conn_request() hooks").

This patch fixes the last bug in DCCPv4.

Fixes: 389fb800 ("netlabel: Label incoming TCP connections correctly in SELinux")
Fixes: 07feee8f ("netlabel: Cleanup the Smack/NetLabel code to fix incoming TCP connections")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>