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Date:   Thu, 2 Aug 2018 10:17:10 -0700
From:   Dave Watson <>
To:     Vakul Garg <>
CC:     "" <>,
        "" <>,
        "" <>,
        "" <>
Subject: Re: [PATCH net-next] net/tls: Mark the end in scatterlist table

On 08/02/18 05:05 PM, Vakul Garg wrote:
> In case zerocopy_from_iter() fails, 'end' won't get marked.
> So fallback path is fine.
> > Which codepath is calling sg_nents()?
> While testing my WIP implementation of combined dynamic memory allocation for 
> (aead_req || sgin || sgout || aad || iv), I was getting random kernel crashes.
> To debug it I had inserted sg_nents() in my code. The KASAN then immediately
> complained that sg_nents() went beyond the allocated memory for scatterlist.
> This led me to find that scatterlist table end has not been marked.

If this isn't causing KASAN issues for the existing code, it probably
makes more sense to put in a future series with that WIP work then.

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