From: Chao Yu <chao@kernel.org>
To: Dongliang Mu <dzm91@hust.edu.cn>, Gao Xiang <xiang@kernel.org>
Cc: Dongliang Mu <mudongliangabcd@gmail.com>,
linux-erofs@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fs: erofs: add sanity check for kobject in erofs_unregister_sysfs
Date: Wed, 16 Mar 2022 09:45:02 +0800 [thread overview]
Message-ID: <871e075f-9c11-7baf-c3c4-8541fafa101b@kernel.org> (raw)
In-Reply-To: <20220315132814.12332-1-dzm91@hust.edu.cn>
On 2022/3/15 21:28, Dongliang Mu wrote:
> From: Dongliang Mu <mudongliangabcd@gmail.com>
>
> Syzkaller hit 'WARNING: kobject bug in erofs_unregister_sysfs'. This bug
> is triggered by injecting fault in kobject_init_and_add of
> erofs_unregister_sysfs.
>
> Fix this by adding sanity check for kobject in erofs_unregister_sysfs
>
> Note that I've tested the patch and the crash does not occur any more.
>
> Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Thanks,
prev parent reply other threads:[~2022-03-16 1:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-15 13:28 Dongliang Mu
2022-03-15 13:34 ` Gao Xiang
2022-03-16 1:45 ` Chao Yu [this message]
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