Comment # 1 on bug 1181104 from Takashi Iwai

The Oops itself looks like the NULL dereference at dvb_usb_device_exit(), and
it's the part:

        if (d != NULL && d->desc != NULL) {
                strscpy(name, d->desc->name, sizeof(name));

So adding the NULL check of d->desc->name should paper over it, e.g.

        if (d != NULL && d->desc != NULL && d->desc->name != NULL) {
                strscpy(name, d->desc->name, sizeof(name));

(It's better to rewrite the if condition without "!= NULL", though.)

However, this doesn't explain why d->desc->name can be NULL.
My wild guess is that this is use-after-free, the properties object got already
released at disconnection, but this needs to be checked by the upstream.