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(parent: de24e0a) | patch
USB: serial: fix potential NULL-dereference at probe
authorJohan Hovold <johan@kernel.org>
Fri, 21 Oct 2016 10:56:27 +0000 (12:56 +0200)
committerJohan Hovold <johan@kernel.org>
Fri, 21 Oct 2016 14:47:17 +0000 (16:47 +0200)
commit126d26f66d9890a69158812a6caa248c05359daa
treea0ea2a08cb65b6cac7b91a147edab37976538bb6tree | snapshot
parentde24e0a108bc48062e1c7acaa97014bce32a919fcommit | diff
USB: serial: fix potential NULL-dereference at probe

Make sure we have at least one port before attempting to register a
console.

Currently, at least one driver binds to a "dummy" interface and requests
zero ports for it. Should such an interface also lack endpoints, we get
a NULL-deref during probe.

Fixes: e5b1e2062e05 ("USB: serial: make minor allocation dynamic")
Cc: stable <stable@vger.kernel.org> # 3.11
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/usb-serial.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git