linux-hardening - Re: [PATCH][next] cifs: cifspdu.h: Replace one-element array with flexible-array member

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Message-ID: <877dltrjue.fsf@suse.com>
Date:   Fri, 26 Mar 2021 16:54:49 +0100
From:   Aurélien Aptel <aaptel@...e.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Steve French <sfrench@...ba.org>
Cc:     linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] cifs: cifspdu.h: Replace one-element array with
 flexible-array member

"Gustavo A. R. Silva" <gustavoars@...nel.org> writes:
> There is a regular need in the kernel to provide a way to declare having
> a dynamically sized set of trailing elements in a structure. Kernel code
> should always use “flexible array members”[1] for these cases. The older
> style of one-element or zero-length arrays should no longer be used[2].

I've checked the usages of the struct, looks OK (we don't allocate it
directly, we use memory from the small/big buff pools).

Reviewed-by: Aurelien Aptel <aaptel@...e.com>

Cheers,
-- 
Aurélien Aptel / SUSE Labs Samba Team
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