Messages in this thread | | | Subject | Re: usercopy whitelist woe in scsi_sense_cache | From | Douglas Gilbert <> | Date | Wed, 4 Apr 2018 16:47:12 -0400 |
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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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