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Date: Sat, 21 Feb 2026 17:46:16 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Manas <ghandatmanas@gmail.com>
Cc: davem@davemloft.net, herbert@gondor.apana.org.au,
	linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org,
	Rakshit Awasthi <rakshitawasthi17@gmail.com>
Subject: Re: [PATCH] Crypto : Fix Null deref in scatterwalk_pagedone
Message-ID: <2026022123-happy-unsure-b638@gregkh>
References: <20260221151041.65141-1-ghandatmanas@gmail.com>
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In-Reply-To: <20260221151041.65141-1-ghandatmanas@gmail.com>

On Sat, Feb 21, 2026 at 08:40:41PM +0530, Manas wrote:
> `sg_next` can return NULL which causes NULL deref in
> `scatterwalk_start`

How can it return NULL in this case?

> Reported-by: Manas Ghandat <ghandatmanas@gmail.com>
> Reported-by: Rakshit Awasthi <rakshitawasthi17@gmail.com>
> Signed-off-by: Manas Ghandat <ghandatmanas@gmail.com>
> Signed-off-by: Rakshit Awasthi <rakshitawasthi17@gmail.com>

Reported by isn't needed if you sign off on a patch.  But you got the
order wrong here for the signed off by lines, please read the
documentation.


<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>