Kernel panic with user namespaces

Eric W. Biederman ebiederm at
Wed May 27 15:16:14 UTC 2015

Josh Boyer <jwboyer at> writes:

> On Tue, May 26, 2015 at 12:31 PM, Eric W. Biederman
> <ebiederm at> wrote:
>> Alexander Larsson <alexl at> writes:
>>> On mån, 2015-05-18 at 16:39 +0200, Alexander Larsson wrote:
>>> Didn't get any replies to the below kernel panic (testcase attached),
>>> which seems rather important to fix. Reposting to a wider audience.
>> Buggered backport greg already has the fix somewhere in his queue.
> Is it fs_pin-allow-for-the-possibility-that-m_list-or-s_list-go-unused.patch
> or mnt-fail-collect_mounts-when-applied-to-unmounted-mounts.patch ?
> (Or both I guess.)  Those are the only 2 patches queued for 4.0 stable
> right now.

Both fix the buggered backport.

fixes the crash.


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