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From: Sasha Levin <sasha.levin@oracle.com>
To: Oleg Nesterov <oleg@redhat.com>, David Howells <dhowells@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	richard@nod.at, Dave Jones <davej@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: kernel: signal: NULL ptr deref when killing process
Date: Thu, 21 Aug 2014 11:20:56 -0400	[thread overview]
Message-ID: <53F60E58.2050708@oracle.com> (raw)
In-Reply-To: <20140820141252.GA27301@redhat.com>

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On 08/20/2014 10:12 AM, Oleg Nesterov wrote:
> On 08/20, Sasha Levin wrote:
>> >
>> > Hi all,
>> >
>> > While fuzzing with trinity inside a KVM tools guest running the latest -next
>> > kernel, I've stumbled on the following spew:
> Thanks...
> 
> looks like, kill_ok_by_cred()->__task_cred(t) returns NULL at first glance.
> perhaps you can show the result of "make kernel/signal.s" to be sure? Or at
> least the full "objdump -d kernel/signal.o".

Attached.

Thanks,
Sasha

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  parent reply	other threads:[~2014-08-21 15:21 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-20 11:18 kernel: signal: NULL ptr deref when killing process Sasha Levin
2014-08-20 14:12 ` Oleg Nesterov
2014-08-20 15:06   ` Oleg Nesterov
2014-08-20 15:30     ` Oleg Nesterov
2014-08-21 16:22     ` David Howells
2014-08-21 17:17       ` Oleg Nesterov
2014-08-27  3:38         ` Sasha Levin
2014-08-27 14:16           ` Oleg Nesterov
2014-08-21 15:20   ` Sasha Levin [this message]
2014-08-21 17:11     ` Oleg Nesterov

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