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strncpy() does not ensure NULL-termination when the input string size equals to the destination buffer size IFNAMSIZ. The output string 'name' is passed to dev_info which relies on NULL-termination. Use strlcpy() instead. This issue is identified by a Coccinelle script. Signed-off-by: Wang Xiayang <xywang.sjtu@sjtu.edu.cn> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>