Re: [PATCH] virtio_blk: Fix an SG_IO regression

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On 10/24/2017 12:04 AM, Bart Van Assche wrote:
> Avoid that submitting an SG_IO ioctl triggers a kernel oops that
> is preceded by:
> 
> usercopy: kernel memory overwrite attempt detected to (null) (<null>) (6 bytes)
> kernel BUG at mm/usercopy.c:72!
> 
> Additionally, make it easier to diagnose crashes like the one
> fixed by this patch.

This really should have been two patches... Anyway, applied for 4.14.

-- 
Jens Axboe




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