netdev - Re: [RFC] [PATCH] net: socket: Fix the wrong returns for recvmsg and sendmsg

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Message-ID: <556D50AA.4000005@huawei.com>
Date:	Tue, 2 Jun 2015 14:43:54 +0800
From:	Junling Zheng <zhengjunling@...wei.com>
To:	Greg KH <gregkh@...uxfoundation.org>,
	David Miller <davem@...emloft.net>
CC:	<lizefan@...wei.com>, <viro@...iv.linux.org.uk>,
	<xuhanbing@...wei.com>, <stable@...r.kernel.org>,
	<netdev@...r.kernel.org>
Subject: Re: [RFC] [PATCH] net: socket: Fix the wrong returns for recvmsg
 and sendmsg

On 2015/6/2 14:27, Greg KH wrote:
> On Mon, Jun 01, 2015 at 10:23:57PM -0700, David Miller wrote:
>> From: Junling Zheng <zhengjunling@...wei.com>
>> Date: Tue, 2 Jun 2015 12:05:32 +0800
>>
>>> So, the problem commit is 281c9c36 (net: compat: Update
>>> get_compat_msghdr() to match copy_msghdr_from_user() behaviour),
>>> which fixes db31c55a6fb2 and brings the get_compat_msghdr() in line
>>> with copy_msghdr_from_user().
>>
>> Upstream this got fixed by:
>>
>> 08adb7dabd4874cc5666b4490653b26534702ce0
>>
>> So the part that makes us not unconditionally return -EFAULT needs
>> to be backported, and that's probably equivalent to the patch
>> your proposed which therefore should be applied.
> 
> Ok, thanks, now applied.
> 

Maybe other stable version also needs this fix:)

> greg k-h
> 
> .
> 


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