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    SubjectRe: usercopy whitelist woe in scsi_sense_cache
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    On 2018-04-04 04:32 PM, Kees Cook wrote:
    > On Wed, Apr 4, 2018 at 12:07 PM, Oleksandr Natalenko
    > <oleksandr@natalenko.name> wrote:
    >> [ 261.262135] Bad or missing usercopy whitelist? Kernel memory exposure
    >> attempt detected from SLUB object 'scsi_sense_cache' (offset 94, size 22)!
    >> I can easily reproduce it with a qemu VM and 2 virtual SCSI disks by calling
    >> smartctl in a loop and doing some usual background I/O. The warning is
    >> triggered within 3 minutes or so (not instantly).
    >
    > Also:
    >
    > Can you send me your .config? What SCSI drivers are you using in the
    > VM and on the real server?
    >
    > Are you able to see what ioctl()s smartctl is issuing? I'll try to
    > reproduce this on my end...

    smartctl -r scsiioctl,3 ....

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