In the Linux kernel, the following vulnerability has been resolved: Input: iforce - wake up after clearing IFORCEXMITRUNNING flag syzbot is reporting hung task at _inputunregisterdevice() [1], for iforceclose() waiting at waiteventinterruptible() with dev->mutex held is blocking inputdisconnectdevice() from _inputunregisterdevice(). It seems that the cause is simply that commit c2b27ef672992a20 ("Input: iforce - wait for command completion when closing the device") forgot to call wakeup() after clearbit(). Fix this problem by introducing a helper that calls clearbit() followed by wakeupall().