wireless: wext: terminate ifr name coming from userspace
ifr name is assumed to be a valid string by the kernel, but nothing was forcing username to pass a valid string. In turn, this would cause panics as we tried to access the string past it's valid memory. Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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