linux-kernel - Re: [PATCH V3 0/2] [BUGFIX] virtio/console: Fix two bugs of splice

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Message-ID: <20130722063341.GA1806@amit-x200.redhat.com>
Date:	Mon, 22 Jul 2013 12:03:41 +0530
From:	Amit Shah <amit.shah@...hat.com>
To:	Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
	stable@...r.kernel.org, virtualization@...ts.linux-foundation.org,
	Hidehiro Kawai <hidehiro.kawai.ez@...achi.com>,
	yrl.pp-manager.tt@...achi.com,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: [PATCH V3 0/2] [BUGFIX] virtio/console: Fix two bugs of
 splice_write

On (Mon) 22 Jul 2013 [13:00:43], 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.
> 
> These reports are written in each patch.
> 
> Changes in V2:
> - Fix a locking problem for error
> 
> Changes in V3:
> - Add Reviewed-by lines and stable@ line in sign-off area

Thank you!

Rusty, please pick this up.

		Amit
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