linux-kernel - Re: [PATCH] hv: hyperv.h: Annotate vmbus_channel_gpadl_header with __counted

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Message-ID: <Z1Y93kdMPeuF6t3N@liuwe-devbox-debian-v2>
Date: Mon, 9 Dec 2024 00:46:22 +0000
From: Wei Liu <wei.liu@...nel.org>
To: Thorsten Blum <thorsten.blum@...ux.dev>
Cc: Wei Liu <wei.liu@...nel.org>, "K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Dexuan Cui <decui@...rosoft.com>, Kees Cook <kees@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH] hv: hyperv.h: Annotate vmbus_channel_gpadl_header with
 __counted_by()

On Mon, Dec 09, 2024 at 01:16:01AM +0100, Thorsten Blum wrote:
> On 7. Dec 2024, at 08:48, Wei Liu wrote:
> > On Tue, Oct 15, 2024 at 12:18:29PM +0200, Thorsten Blum wrote:
> >> Add the __counted_by compiler attribute to the flexible array member
> >> range to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
> >> CONFIG_FORTIFY_SOURCE.
> >> 
> >> Compile-tested only.
> >> 
> >> Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
> > 
> > Applied to hyperv-fixes. Thanks.
> 
> This should probably not be applied anymore given the kernel test robot
> build warnings. Unless I missed something and this works now?

Yes, you're right. The patch has been dropped from hyperv-fixes.

Thanks,
Wei.

> 
> Thanks,
> Thorsten