linux-kernel - Re: [PATCH 0/2] [BUGFIX] virtio/console: Fix two bugs of splice

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Message-ID: <20130719052345.GD3087@amit-x200.redhat.com>
Date:	Fri, 19 Jul 2013 10:53:45 +0530
From:	Amit Shah <amit.shah@...hat.com>
To:	Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>
Cc:	linux-kernel@...r.kernel.org,
	Hidehiro Kawai <hidehiro.kawai.ez@...achi.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Arnd Bergmann <arnd@...db.de>, yrl.pp-manager.tt@...achi.com
Subject: Re: [PATCH 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write

On (Fri) 19 Jul 2013 [08:19:27], Yoshihiro YUNOMAE wrote:
> Hi,
> 
> This patch set fixes two bugs of splice_write in the virtio-console driver.
> 
> [BUG1] Although pipe->nrbufs is empty, the driver tries to do splice_write.
>        => This induces oops in sg_init_table().
> 
> [BUG2] No lock for competition of splice_write.
>        => This induces oops in splice_from_pipe_feed() by bug of any user
>           application.

Spotted a bug in the 2nd patch.  Do you want to also CC these to stable@?

		Amit
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