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USB: serial: xr: fix NULL-deref at probe
authorJohan Hovold <johan@kernel.org>
Thu, 21 Jan 2021 10:29:13 +0000 (11:29 +0100)
committerJohan Hovold <johan@kernel.org>
Tue, 26 Jan 2021 15:16:14 +0000 (16:16 +0100)
commita38d21488097f9823ebd297d56b24f431ee7acaa
tree5a57b091adefa614470b9be1fd87af021a499e4dtree
parenta70aa7dc60099bbdcbd6faca42a915d80f31161ecommit | diff
USB: serial: xr: fix NULL-deref at probe

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: c2d405aa86b4 ("USB: serial: add MaxLinear/Exar USB to Serial driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/xr_serial.c diff | blob | blame | history
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