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

From: Greg Kroah-Hartman
Date: Mon Aug 03 2015 - 17:11:49 EST


On Mon, Aug 03, 2015 at 01:03:10PM -0600, Shuah Khan wrote:
> 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@xxxxxxxxxxxxxxx>
> 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@xxxxxxxxxxxxxxx>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>

Ah, that showed up in 3.18, and it's not worth adding it to 3.14 if the
other selftest infrastructure isn't realy there either.

thanks,

greg k-h
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