linux-kernel - Re: [Bug #11500] /proc/net bug related to selinux

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Message-Id: <20080913123722.e238ae2a.akpm@linux-foundation.org>
Date:	Sat, 13 Sep 2008 12:37:22 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	James Morris <jmorris@...ei.org>
Cc:	rjw@...k.pl, linux-kernel@...r.kernel.org,
	kernel-testers@...r.kernel.org, sds@...ho.nsa.gov
Subject: Re: [Bug #11500] /proc/net bug related to selinux

On Sat, 13 Sep 2008 10:15:43 +1000 (EST) James Morris <jmorris@...ei.org> wrote:

> On Fri, 12 Sep 2008, Andrew Morton wrote:
> 
> > > > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11500
> > > > Subject		: /proc/net bug related to selinux
> > > > Submitter	: Andrew Morton <akpm@...ux-foundation.org>
> > > > Date		: 2008-09-04 17:45 (9 days old)
> > > > References	: http://marc.info/?l=linux-kernel&m=122055041313270&w=4
> > > 
> > > I think this might be a regression caused by namespace changes which we 
> 
> By which I mean, this was caused by a non-SELinux change to the upstream 
> kernel many, many eons ago.

hm, seems that 2.6.24 is OK but 2.6.25 is not.  I must have missed the
bug when testing 2.6.25-based kernels.

I started a git bisection search but after half an hour I hit bad
bisection breakage: a complete machine hang in fib_rules_init().

> > > addressed in SELinux policy.  Which distro version & policy version is 
> > > this seen with?
> > > 
> > 
> > FC5 on x86_32 and FC6 on x86_64.
> 
> As mentioned in the bugzilla, any related avc messages would be useful.

2.6.25 dmesg: http://userweb.kernel.org/~akpm/dmesg-sony.txt
/var/log/messages: http://userweb.kernel.org/~akpm/messages-sony.txt

The latter includes this:

Sep 13 12:32:43 sony kernel: SELinux:  class key not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  class dccp_socket not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  class memprotect not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  class peer not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  class capability2 not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission open in class dir not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission open in class file not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission open in class chr_file not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission open in class blk_file not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission open in class fifo_file not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission dccp_recv in class node not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission dccp_send in class node not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission recvfrom in class node not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission sendto in class node not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission dccp_recv in class netif not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission dccp_send in class netif not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission ingress in class netif not defined in policy
Sep 13 12:32:43 sony kernel: SELinux:  permission egress in class netif not defined in policy
Sep 13 12:32:44 sony kernel: SELinux:  permission setkeycreate in class process not defined in policy
Sep 13 12:32:44 sony kernel: SELinux:  permission setsockcreate in class process not defined in policy
Sep 13 12:32:44 sony kernel: SELinux:  permission setfcap in class capability not defined in policy
Sep 13 12:32:44 sony kernel: SELinux:  permission polmatch in class association not defined in policy
Sep 13 12:32:44 sony kernel: SELinux:  permission flow_in in class packet not defined in policy
Sep 13 12:32:44 sony kernel: SELinux:  permission flow_out in class packet not defined in policy
Sep 13 12:32:44 sony kernel: SELinux:  permission forward_in in class packet not defined in policy
Sep 13 12:32:44 sony kernel: SELinux:  permission forward_out in class packet not defined in policy
Sep 13 12:32:44 sony kernel: SELinux: the above unknown classes and permissions will be denied
Sep 13 12:32:44 sony kernel: type=1403 audit(1221309118.644:3): policy loaded auid=4294967295 ses=4294967295
Sep 13 12:32:44 sony kernel: type=1400 audit(1221334321.726:4): avc:  denied  { audit_write } for  pid=400 comm="hwclock" capability=29 scontext=system_u:system_r:hwclock_t:s0 tcontext=system_u:system_r:hwclock_t:s0 tclass=capability


Why am I seeing this on two machines and two vanilla-installed distros
but nobody else is reporting it?


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