linux-kernel - Re: [PATCH 3.14 000/125] 3.14.49-stable review

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Date:	Mon, 03 Aug 2015 13:03:10 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	David Miller <davem@...emloft.net>
CC:	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, linux@...ck-us.net,
	shuah.kh@...sung.com, stable@...r.kernel.org
Subject: Re: [PATCH 3.14 000/125] 3.14.49-stable review

On 08/03/2015 10:17 AM, Greg Kroah-Hartman wrote:
> On Sat, Aug 01, 2015 at 12:42:02PM +0530, Sudip Mukherjee wrote:
>> On Sat, Aug 01, 2015 at 12:39:25PM +0530, Sudip Mukherjee wrote:
>>> On Fri, Jul 31, 2015 at 12:40:00PM -0700, Greg Kroah-Hartman wrote:
>>>> This is the start of the stable review cycle for the 3.14.49 release.
>>>> There are 125 patches in this series, all will be posted as a response
>>>> to this one.  If anyone has any issues with these being applied, please
>>>> let me know.
>>>>
>>>> Responses should be made by Sun Aug  2 19:40:05 UTC 2015.
>>>> Anything received after that time might be too late.
>>> Compiled and booted on x86_32.
>>>
>>> While kselftest got a report of segmentation fault and in dmesg:
>>> psock_fanout[2509]: segfault at 401fd000 ip 080492ab sp bfc40cd0 error 4
>>> 	in psock_fanout[8048000+2000]
>>
>> Missed a clarification, kselftest is not there. ran the tests with:

kselftest target isn't in 3.14. It was added to 3.17 or 3.18.

>> sudo make -C tools/testing/selftests run_tests
> 
> Is this something new that shows up in 3.14.49-rc1 and is not in .48?
> 

This is a known issue, fixed in 3.19?? - the following is the commit.
Adding Dave Miller to the thread.

commit fbf8e7211ac7858d3df4a4203c18da7a58560784
Author: Shuah Khan <shuahkh@....samsung.com>
Date:   Tue Nov 11 10:04:13 2014 -0700

    selftests/net: psock_fanout seg faults in sock_fanout_read_ring()

    The while loop in sock_fanout_read_ring() checks mmap region
    bounds after access, causing it to segfault. Fix it to check
    count before accessing header->tp_status. This problem can be
    reproduced consistently when the test in run as follows:

        make -C tools/testing/selftests TARGETS=net run_tests
        or
        make run_tests from tools/testing/selftests
        or
        make run_test from tools/testing/selftests/net

    Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
    Signed-off-by: David S. Miller <davem@...emloft.net>

thanks,
-- Shuah


-- 
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@....samsung.com | (970) 217-8978
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