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Groups > linux.debian.bugs.dist > #885698

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

From Andrew Lunn <andrew@lunn.ch>
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 2018-03-07 14:40 +0100
Message-ID <vqHst-Ur-1@gated-at.bofh.it> (permalink)
References (5 earlier) <vq0Qy-4Y3-17@gated-at.bofh.it> <vq97r-22D-3@gated-at.bofh.it> <vqyyS-3mz-3@gated-at.bofh.it> <vakTf-5nt-5@gated-at.bofh.it> <vqyyS-3mz-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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> 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.

Thanks
	Andrew

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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

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