Hi, Den mån 22 mars 2021 kl 00:01 skrev Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>: > Or we do something like > https://lore.kernel.org/linux-bluetooth/20201024002251.1389267-1-luiz.dentz@xxxxxxxxx/, > that said the reason we didn't applied my patches was that the > controller would be the one generating invalid data, but it seems you > are reproducing with vhci controller which is only used for emulating > a controller and requires root privileges so it is unlikely these > conditions would happens with hardware itself, in the other hand as > there seems to be more and more reports using vhci to emulate broken > events it perhaps more productive to introduce proper checks for all > events so we don't have to deal with more reports like this in the > future. Keep in mind that when using the H4 uart protocol without any error correction (as H5 has), it is possible that random bit errors occur on the wire. I wouldn't like my kernel to crash due to this. Bit errors happen all the time on RPi 4 for example at the default baud rate if you just do some heavy stress testing, or use an application that transfers a lot of data over Bluetooth. /Emil
