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f1ceaaf93e
[ Upstream commit 1547d41f9f ]
Do not crash when a report has no fields.
Fake USB gadgets can send their own HID report descriptors and can define report
structures without valid fields. This can be used to crash the kernel over USB.
Cc: stable@vger.kernel.org
Signed-off-by: Günther Noack <gnoack@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>