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Date: Wed, 5 Nov 2025 11:47:56 -0700
From: Keith Busch <kbusch@kernel.org>
To: Hans Holmberg <Hans.Holmberg@wdc.com>
Cc: Keith Busch <kbusch@meta.com>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	hch <hch@lst.de>, "axboe@kernel.dk" <axboe@kernel.dk>,
	"dlemoal@kernel.org" <dlemoal@kernel.org>
Subject: Re: [PATCH] null_blk: allow byte aligned memory offsets
Message-ID: <aQub3Fnmr6zlMqE3@kbusch-mbp>
References: <20251103172854.746263-1-kbusch@meta.com>
 <3df2d429-7cd8-4186-a47e-2fbb4489ed6f@wdc.com>
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In-Reply-To: <3df2d429-7cd8-4186-a47e-2fbb4489ed6f@wdc.com>

On Tue, Nov 04, 2025 at 09:15:15AM +0000, Hans Holmberg wrote:
> I applied this on top of 6.18-rc4 and hit the following when attempting to create a zoned
> nullblk dev(see bash script for recreating below the crash): 

Thanks for checking. I spotted the mistake in the code, causing a
potential buffer overrun. Got it fixed up for the next version.