linux-kernel - Re: [PATCH v5] block: add check that partition length needs to be aligned with block size

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Message-Id: <170248081388.44340.415544465517225810.b4-ty@kernel.dk>
Date:   Wed, 13 Dec 2023 08:20:13 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     willy@...radead.org, hch@....de, dlemoal@...nel.org,
        gregkh@...uxfoundation.org, Min Li <min15.li@...sung.com>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org, Chaitanya Kulkarni <kch@...dia.com>
Subject: Re: [PATCH v5] block: add check that partition length needs to be
 aligned with block size


On Thu, 29 Jun 2023 14:25:17 +0000, Min Li wrote:
> Before calling add partition or resize partition, there is no check
> on whether the length is aligned with the logical block size.
> If the logical block size of the disk is larger than 512 bytes,
> then the partition size maybe not the multiple of the logical block size,
> and when the last sector is read, bio_truncate() will adjust the bio size,
> resulting in an IO error if the size of the read command is smaller than
> the logical block size.If integrity data is supported, this will also
> result in a null pointer dereference when calling bio_integrity_free.
> 
> [...]

Applied, thanks!

[1/1] block: add check that partition length needs to be aligned with block size
      commit: 6f64f866aa1ae6975c95d805ed51d7e9433a0016

Best regards,
-- 
Jens Axboe