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Commit 989560b6 authored by Lee Jones's avatar Lee Jones Committed by Greg Kroah-Hartman
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HID: steam: Prevent NULL pointer dereference in steam_{recv,send}_report



commit cd11d1a6 upstream.

It is possible for a malicious device to forgo submitting a Feature
Report.  The HID Steam driver presently makes no prevision for this
and de-references the 'struct hid_report' pointer obtained from the
HID devices without first checking its validity.  Let's change that.

Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Fixes: c164d6ab ("HID: add driver for Valve Steam Controller")
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 67216f47
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