From: David Sterba <dsterba@suse.cz>
To: Thorsten Blum <thorsten.blum@linux.dev>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
Nick Terrell <terrelln@fb.com>, David Sterba <dsterba@suse.com>,
Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH] crypto: zstd - Annotate struct zstd_ctx with __counted_by
Date: Thu, 13 Nov 2025 12:32:51 +0100 [thread overview]
Message-ID: <20251113113251.GO13846@suse.cz> (raw)
In-Reply-To: <20251108120740.149799-2-thorsten.blum@linux.dev>
On Sat, Nov 08, 2025 at 01:07:40PM +0100, Thorsten Blum wrote:
> Add the __counted_by() compiler attribute to the flexible array member
> 'wksp' to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
> CONFIG_FORTIFY_SOURCE.
>
> Use struct_size(), which provides additional compile-time checks for
> structures with flexible array members (e.g., __must_be_array()), for
> the allocation size for a new 'zstd_ctx' while we're at it.
>
> Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: David Sterba <dsterba@suse.com>
As this is crypto/zstd.c there's no need to sync with upstream zstd code
so it can go via the crypto tree.
next prev parent reply other threads:[~2025-11-13 11:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-08 12:07 [PATCH] crypto: zstd - Annotate struct zstd_ctx with __counted_by Thorsten Blum
2025-11-13 11:32 ` David Sterba [this message]
2025-11-14 10:24 ` Herbert Xu
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