From: Jens Axboe <axboe@kernel.dk>
To: yi.zhang@redhat.com, dlemoal@kernel.org, hare@suse.de,
johannes.thumshirn@wdc.com, kch@nvidia.com,
zhouchengming@bytedance.com, yanjun.zhu@linux.dev,
bvanassche@acm.org, Yu Kuai <yukuai1@huaweicloud.com>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
yukuai3@huawei.com, yi.zhang@huawei.com, yangerkun@huawei.com
Subject: Re: [PATCH v2] null_blk: fix null-ptr-dereference while configuring 'power' and 'submit_queues'
Date: Sat, 25 May 2024 10:09:39 -0600 [thread overview]
Message-ID: <171665337969.160479.8933222085761129078.b4-ty@kernel.dk> (raw)
In-Reply-To: <20240523153934.1937851-1-yukuai1@huaweicloud.com>
On Thu, 23 May 2024 23:39:34 +0800, Yu Kuai wrote:
> Writing 'power' and 'submit_queues' concurrently will trigger kernel
> panic:
>
> Test script:
>
> modprobe null_blk nr_devices=0
> mkdir -p /sys/kernel/config/nullb/nullb0
> while true; do echo 1 > submit_queues; echo 4 > submit_queues; done &
> while true; do echo 1 > power; echo 0 > power; done
>
> [...]
Applied, thanks!
[1/1] null_blk: fix null-ptr-dereference while configuring 'power' and 'submit_queues'
commit: a2db328b0839312c169eb42746ec46fc1ab53ed2
Best regards,
--
Jens Axboe
next prev parent reply other threads:[~2024-05-25 16:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-23 15:39 Yu Kuai
2024-05-23 7:47 ` Zhu Yanjun
2024-05-25 16:09 ` Jens Axboe [this message]
2024-05-26 12:57 ` Markus Elfring
2024-05-27 7:38 ` Johannes Thumshirn
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