USB: serial: xr: fix NULL-deref at probe

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Make sure that the probed device has an interface 0 to avoid
dereferencing a NULL pointer in case of a malicious device or during
USB-descriptor fuzzing.

Fixes: c2d405aa86 ("USB: serial: add MaxLinear/Exar USB to Serial driver")
Signed-off-by: Johan Hovold <johan@kernel.org>

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Johan Hovold 2021-01-21 11:29:13 +01:00

parent a70aa7dc60

commit a38d214880

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drivers/usb/serial/xr_serial.c

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