From: ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org (Eric W. Biederman)
To: Alexander Larsson <alexl-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: Kernel panic with user namespaces
Date: Tue, 26 May 2015 11:31:40 -0500 [thread overview]
Message-ID: <87vbff1es3.fsf@x220.int.ebiederm.org> (raw)
In-Reply-To: <1432642765.19400.2.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> (Alexander Larsson's message of "Tue, 26 May 2015 14:19:25 +0200")
Alexander Larsson <alexl@redhat.com> 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.
>> If I build and run the attached break-kernel.c as a user i get this
>> kernel panic on the fedora 4.0.3 kernel:
>>
>> maj 18 16:33:36 nano kernel: BUG: unable to handle kernel NULL pointer dereference at (null)
>> maj 18 16:33:36 nano kernel: IP: [<ffffffff81250288>] pin_remove+0x58/0xc0
>> maj 18 16:33:36 nano kernel: PGD 1cc973067 PUD 1d727b067 PMD 0
>> maj 18 16:33:36 nano kernel: Oops: 0002 [#1] SMP
Eric
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next prev parent reply other threads:[~2015-05-26 16:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-18 14:39 Kernel panic with user namespaces Alexander Larsson
[not found] ` <1431959951.5030.2.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-05-26 12:19 ` Alexander Larsson
[not found] ` <1432642765.19400.2.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-05-26 16:31 ` Eric W. Biederman [this message]
[not found] ` <87vbff1es3.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-05-27 14:06 ` Josh Boyer
[not found] ` <CA+5PVA7wpFwMSHkAQoVzthYSrxJXfpZo5vLGKYAHggN+ujJyow@mail.gmail.com>
[not found] ` <CA+5PVA7wpFwMSHkAQoVzthYSrxJXfpZo5vLGKYAHggN+ujJyow-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-27 15:16 ` Eric W. Biederman
[not found] ` <87pp5mqce9.fsf@x220.int.ebiederm.org>
[not found] ` <87pp5mqce9.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-05-28 7:03 ` Nikolay Borisov
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