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

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Message-ID: <87txjm9h82.fsf@rustcorp.com.au>
Date:	Tue, 23 Jul 2013 11:21:09 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Amit Shah <amit.shah@...hat.com>,
	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>
Subject: Re: [PATCH V3 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write

Amit Shah <amit.shah@...hat.com> writes:
> 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.

Both applied, thankyou.

Cheers,
Rusty.
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