Messages in this thread | | | Date | Thu, 12 Dec 2019 11:57:54 +0100 | From | Greg KH <> | Subject | Re: BUG: unable to handle kernel NULL pointer dereference in mem16_serial_out |
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On Mon, Dec 09, 2019 at 05:38:01PM -0800, syzbot wrote: > syzbot has bisected this bug to: > > commit bd94c4077a0b2ecc35562c294f80f3659ecd8499 > Author: Masahiro Yamada <yamada.masahiro@socionext.com> > Date: Wed Oct 28 03:46:05 2015 +0000 > > serial: support 16-bit register interface for console
That would be because that is when this function was added to the kernel :)
Again, you are asking the kernel to write to a bad place in memory, and then crash when that happens. That sounds like the correct functionality to me...
thanks,
greg k-h
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