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Date:   Fri, 28 Aug 2020 12:27:38 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     shuo.a.liu@intel.com
Cc:     linux-kernel@vger.kernel.org, "H . Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Yu Wang <yu1.wang@intel.com>,
        Reinette Chatre <reinette.chatre@intel.com>, x86@kernel.org,
        Zhi Wang <zhi.a.wang@intel.com>,
        Zhenyu Wang <zhenyuw@linux.intel.com>
Subject: Re: [PATCH 06/17] virt: acrn: Introduce VM management interfaces
Message-ID: <20200828102738.GC1470435@kroah.com>
References: <20200825024516.16766-1-shuo.a.liu@intel.com>
 <20200825024516.16766-7-shuo.a.liu@intel.com>
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On Tue, Aug 25, 2020 at 10:45:06AM +0800, shuo.a.liu@intel.com wrote:
> +	default:
> +		pr_warn("Unknown IOCTL 0x%x!\n", cmd);
> +		ret = -EINVAL;

Wrong error value here, right?

And you just made a simple way to cause a DoS on the kernel log :(

thanks,

greg k-h