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Message-ID: <CAGXu5j+-PNYxSc3v+QtQLK0S3wdtFthFSxNM_69kFDnPQX0Gaw@mail.gmail.com> Date: Wed, 11 Apr 2018 17:03:38 -0700 From: Kees Cook <keescook@...omium.org> To: Oleksandr Natalenko <oleksandr@...alenko.name> Cc: David Windsor <dave@...lcore.net>, "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>, "Martin K. Petersen" <martin.petersen@...cle.com>, linux-scsi@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>, Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>, Hannes Reinecke <hare@...e.com>, Johannes Thumshirn <jthumshirn@...e.de>, linux-block@...r.kernel.org, paolo.valente@...aro.org Subject: Re: usercopy whitelist woe in scsi_sense_cache On Wed, Apr 11, 2018 at 3:47 PM, Kees Cook <keescook@...omium.org> wrote: > On Tue, Apr 10, 2018 at 8:13 PM, Kees Cook <keescook@...omium.org> wrote: >> I'll see about booting with my own kernels, etc, and try to narrow this down. :) > > If I boot kernels I've built, I no longer hit the bug in this VM > (though I'll keep trying). What compiler are you using? Ignore that: I've reproduced it with my kernels now. I think I messed up the initramfs initially. But with an exact copy of your .config, booting under Arch grub with initramfs, I see it. I'll start removing variables now... :P -Kees -- Kees Cook Pixel Security
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