From: Damien Le Moal <dlemoal@kernel.org>
To: Keith Busch <kbusch@meta.com>,
axboe@kernel.dk, johannes.thumshirn@wdc.com, bvanassche@acm.org,
linux-block@vger.kernel.org
Cc: Keith Busch <kbusch@kernel.org>
Subject: Re: [PATCH] null_blk: fix zone read length beyond write pointer
Date: Thu, 13 Nov 2025 11:44:08 +0900 [thread overview]
Message-ID: <91499f59-2144-449e-830c-2f839db4dded@kernel.org> (raw)
In-Reply-To: <20251112164218.816774-1-kbusch@meta.com>
On 11/13/25 01:42, Keith Busch wrote:
> From: Keith Busch <kbusch@kernel.org>
>
> Fix up the divisor calculating the number of zone sectors being read and
> handle a read that straddles the zone write pointer. The length is
> rounded up a sector boundary, so be sure to truncate any excess bytes
> off to avoid copying past the data segment.
>
> Fixes: 3451cf34f51bb70 ("null_blk: allow byte aligned memory offsets")
> Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
--
Damien Le Moal
Western Digital Research
prev parent reply other threads:[~2025-11-13 2:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-12 16:42 [PATCH] null_blk: fix zone read length beyond write pointer Keith Busch
2025-11-12 17:00 ` Bart Van Assche
2025-11-12 17:03 ` Jens Axboe
2025-11-12 17:38 ` Chaitanya Kulkarni
2025-11-13 2:44 ` Damien Le Moal [this message]
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