Bluetooth: L2CAP: Fix not validating setsockopt user input
[ Upstream commit 4f395124 ] Check user input length before copying data. Fixes: 33575df7 ("Bluetooth: move l2cap_sock_setsockopt() to l2cap_sock.c") Fixes: 3ee7b7cd ("Bluetooth: Add BT_MODE socket option") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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