Re: [PATCH v2] char: lp: Fix NULL pointer dereference of cad

From: Greg KH

Date: Tue Jan 20 2026 - 04:23:30 EST


On Tue, Jan 20, 2026 at 03:55:47PM +0800, Li Nan wrote:
> > And how was this tested?
>
> We found this issue during fuzzing in QEMU.
> Based on the root cause, I got the following reproducer:

QEMU is not real hardware :)

Do you really still use parallel port hardware in the real world? or
is this just an accidemic exercise of a fuzzing tool?

thanks,

greg k-h