From: David Miller <davem@davemloft.net>
To: zhengjunling@huawei.com
Cc: gregkh@linuxfoundation.org, lizefan@huawei.com,
viro@zeniv.linux.org.uk, xuhanbing@huawei.com,
stable@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [RFC] [PATCH] net: socket: Fix the wrong returns for recvmsg and sendmsg
Date: Mon, 01 Jun 2015 16:54:07 -0700 (PDT) [thread overview]
Message-ID: <20150601.165407.734100251470140931.davem@davemloft.net> (raw)
In-Reply-To: <1433150880-9976-1-git-send-email-zhengjunling@huawei.com>
From: Junling Zheng <zhengjunling@huawei.com>
Date: Mon, 1 Jun 2015 09:28:00 +0000
> We found that after v3.10.73, recvmsg might return -EFAULT while -EINVAL
> was expected.
>
> We tested it through the recvmsg01 testcase come from LTP testsuit. It set
> msg->msg_namelen to -1 and the recvmsg syscall returned errno 14, which is
> unexpected (errno 22 is expected):
>
> recvmsg01 4 TFAIL : invalid socket length ; returned -1 (expected -1),
> errno 14 (expected 22)
>
> Linux mainline has no this bug for commit 08adb7dab fixes it accidentally.
> However, it is too large and complex to be backported to LTS 3.10.
>
> So, I made the following patch to fix the above problem for LTS 3.10.
Upstream the code doesn't look anything like this, so it's probably
just a missing bug fix for -stable.
next prev parent reply other threads:[~2015-06-01 23:54 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-01 9:28 [RFC] [PATCH] net: socket: Fix the wrong returns for recvmsg and sendmsg Junling Zheng
2015-06-01 23:54 ` David Miller [this message]
2015-06-02 1:21 ` Greg KH
2015-06-02 4:05 ` Junling Zheng
2015-06-02 4:44 ` Greg KH
2015-06-02 6:19 ` Junling Zheng
2015-06-02 5:23 ` David Miller
2015-06-02 6:27 ` Greg KH
2015-06-02 6:43 ` Junling Zheng
2015-06-02 6:52 ` Willy Tarreau
2015-06-02 7:05 ` Junling Zheng
2015-06-02 10:15 ` Luis Henriques
2015-06-02 6:33 ` Junling Zheng
2015-06-02 6:27 ` Patch "net: socket: Fix the wrong returns for recvmsg and sendmsg" has been added to the 3.10-stable tree gregkh
2015-06-02 13:00 ` Patch "net: socket: Fix the wrong returns for recvmsg and sendmsg" has been added to the 3.14-stable tree gregkh
2015-08-01 19:36 ` [RFC] [PATCH] net: socket: Fix the wrong returns for recvmsg and sendmsg Ben Hutchings
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