linux-kernel - Re: [PATCH] crypto: ccree: Correctly handle return of sg_nents_for

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Message-ID: <aSEqcJ5k4JsErB2l@gondor.apana.org.au>
Date: Sat, 22 Nov 2025 11:13:52 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Haotian Zhang <vulab@...as.ac.cn>
Cc: gilad@...yossef.com, davem@...emloft.net, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: ccree: Correctly handle return of
 sg_nents_for_len

On Mon, Nov 10, 2025 at 03:20:41PM +0800, Haotian Zhang wrote:
> Fix error handling in cc_map_hash_request_update where sg_nents_for_len
> return value was assigned to u32, converting negative errors to large
> positive values before passing to sg_copy_to_buffer.
> 
> Check sg_nents_for_len return value and propagate errors before
> assigning to areq_ctx->in_nents.
> 
> Fixes: b7ec8530687a ("crypto: ccree - use std api when possible")
> Signed-off-by: Haotian Zhang <vulab@...as.ac.cn>
> ---
>  drivers/crypto/ccree/cc_buffer_mgr.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)

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