linux-kernel - Re: [PATCH V3] crypto: Mark intermediary memory as clean

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Message-ID: <aLK6OBB3c4nqrlG-@gondor.apana.org.au>
Date: Sat, 30 Aug 2025 16:45:44 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Edward Adam Davis <eadavis@...com>
Cc: smueller@...onox.de, davem@...emloft.net, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	syzbot+e8bcd7ee3db6cb5cb875@...kaller.appspotmail.com,
	syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH V3] crypto: Mark intermediary memory as clean

On Mon, Aug 18, 2025 at 09:24:17PM +0800, Edward Adam Davis wrote:
> This is not a leak! The stack memroy is hashed and fed into the
> entropy pool. We can't recover the original kernel memory from it.
> 
> Reported-by: syzbot+e8bcd7ee3db6cb5cb875@...kaller.appspotmail.com
> Closes: https://syzkaller.appspot.com/bug?extid=e8bcd7ee3db6cb5cb875
> Signed-off-by: Edward Adam Davis <eadavis@...com>
> ---
> V1 -> V2: mark it as unpoison
> V2 -> V3: replace to sizeof, minimize the possibilities where inconsistencies can occur
> 
>  crypto/jitterentropy-kcapi.c | 1 +
>  1 file changed, 1 insertion(+)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt