mISDN: Check address length before reading address family
[ Upstream commit 238ffdc49ef98b15819cfd5e3fb23194e3ea3d39 ] KMSAN will complain if valid address length passed to bind() is shorter than sizeof("struct sockaddr_mISDN"->family) bytes. Signed-off-by: NTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NSasha Levin <sashal@kernel.org>
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