linux-kernel - Re: [PATCH 06/17] virt: acrn: Introduce VM management interfaces

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Message-ID: <20200828102738.GC1470435@kroah.com>
Date:   Fri, 28 Aug 2020 12:27:38 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     shuo.a.liu@...el.com
Cc:     linux-kernel@...r.kernel.org, "H . Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Yu Wang <yu1.wang@...el.com>,
        Reinette Chatre <reinette.chatre@...el.com>, x86@...nel.org,
        Zhi Wang <zhi.a.wang@...el.com>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>
Subject: Re: [PATCH 06/17] virt: acrn: Introduce VM management interfaces

On Tue, Aug 25, 2020 at 10:45:06AM +0800, shuo.a.liu@...el.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