Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM)

Mon Mar 5 16:54:57 PST 2018

On Tue, 6 Mar 2018, at 04:57, Yves-Alexis Perez wrote:
> On Mon, 2018-03-05 at 15:28 +0100, Andrew Lunn wrote:
> > Would it be possible to try to reproduce this problem with 4.9.86 on
> > the hardware reporting the issue?
> 
> 4.9.82-1+deb9u3 is currently in the archive. Menno, could you give it a shot?

Will do. I need to get the NAS back to running Scratch as I went back to Jessie for comparison (similar looking problems there too) but I'll get it done as soon as I can.

Also, I can confirm that I was indeed copying from an external USB disk with just "rsync -av <source> <dest>".