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

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From	"Menno Finlay-Smits" <inbox@menno.io>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM)
Date	Fri, 09 Mar 2018 11:00:02 +0100
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X-Original-Cc	Gregory Clement <gregory.clement@free-electrons.com>, "Yves-Alexis Perez" <corsac@debian.org>, 887873@bugs.debian.org, Martin Michlmayr <tbm@cyrius.com>, linux-arm-kernel@lists.infradead.org
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Cross-posted to 2 groups.

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On Thu, 8 Mar 2018, at 11:27, Andrew Lunn wrote:
> On Thu, Mar 08, 2018 at 09:49:29AM +1300, Menno Finlay-Smits wrote:
> > On Thu, 8 Mar 2018, at 02:36, Andrew Lunn wrote:
> > > > What else can I try?
> > > 
> > > Do you have transparent huge pages enabled?
> > > 
> > > ~$ cat /sys/kernel/mm/transparent_hugepage/enabled 
> > > [always] madvise never
> > > 
> > > If so, could you disable it with:
> > > 
> > > echo never > /sys/kernel/mm/transparent_hugepage/enabled
> > > 
> > > and run your rsync command.
> 
> Hi Menno
> 
> Could you also try linux-image-4.14.0-3-marvell from sid?

Can do. Should I just use the kernel packages from sid or update the whole system to sid?

Thread

Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Andrew Lunn <andrew@lunn.ch> - 2018-03-04 21:50 +0100
  Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Andrew Lunn <andrew@lunn.ch> - 2018-03-05 15:40 +0100
    Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Yves-Alexis Perez <corsac@debian.org> - 2018-03-05 17:10 +0100
      Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) "Menno Finlay-Smits" <inbox@menno.io> - 2018-03-06 02:00 +0100
        Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) "Menno Finlay-Smits" <inbox@menno.io> - 2018-03-07 05:10 +0100
          Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Andrew Lunn <andrew@lunn.ch> - 2018-03-07 14:10 +0100
          Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Andrew Lunn <andrew@lunn.ch> - 2018-03-07 14:40 +0100
            Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) "Menno Finlay-Smits" <inbox@menno.io> - 2018-03-07 22:00 +0100
              Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Andrew Lunn <andrew@lunn.ch> - 2018-03-07 23:40 +0100
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) "Menno Finlay-Smits" <inbox@menno.io> - 2018-03-09 11:00 +0100
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Yves-Alexis Perez <corsac@debian.org> - 2018-03-09 11:10 +0100
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Andrew Lunn <andrew@lunn.ch> - 2018-03-09 15:40 +0100
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) "Menno Finlay-Smits" <inbox@menno.io> - 2018-03-11 12:10 +0100
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Yves-Alexis Perez <corsac@debian.org> - 2018-03-11 12:10 +0100
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) "Menno Finlay-Smits" <inbox@menno.io> - 2018-03-11 22:10 +0100
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Martin Michlmayr <tbm@cyrius.com> - 2018-09-10 15:00 +0200
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) Martin Michlmayr <tbm@cyrius.com> - 2019-07-31 16:50 +0200
                Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM) "Menno Finlay-Smits" <inbox@menno.io> - 2019-08-01 00:30 +0200

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