Re: [PATCH 4.9.y 4.14.y] IB/mlx5: Fix leaking stack memory to userspace

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Oops, you are totally right, I was still looking at the latest
mlx5_ib_create_qp_resp struct while backporting these patches :)

Sorry for that,
Alessio

On Mon, Aug 12, 2019 at 04:23:16PM +0200, Greg KH wrote:
> On Mon, Aug 12, 2019 at 11:55:03AM +0100, Alessio Balsini wrote:
> > From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
> > 
> > commit 0625b4ba1a5d4703c7fb01c497bd6c156908af00 upstream.
> > 
> > mlx5_ib_create_qp_resp was never initialized and only the first 4 bytes
> > were written.
> > 
> > Fixes: 41d902cb7c32 ("RDMA/mlx5: Fix definition of mlx5_ib_create_qp_resp")
> 
> This commit only showed up in the following kernel releases:
> 	4.17 4.18.7 4.19
> 
> so why is this "fix" commit needed in anything older than 4.17?
> 
> That's why I did not backport it to older kernels, as I do not think it
> is needed there.  Do you?
> 
> thanks,
> 
> greg k-h



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