On 7/28/06, Stephen Smalley <sds@xxxxxxxxxxxxx> wrote:
On Fri, 2006-07-28 at 10:48 +0100, Paul Howarth wrote:
> Deepak Shrestha wrote:
> >> Look in /var/log/messages, or if you're running the audit daemon
> >> (default on in FC4), /var/log/audit/audit.log, for lines containing
> >> "type=AVC".
> >>
> >> Paul.
> >>
> >
> > I don't have audit directory or audit.log but issuing
> > # cat /var/log/messages | grep AVC
> >
> > gives me blank result
>
> It's possible that any messages may have been rotated out. Try:
>
> $ fgrep type=AVC /var/log/messages*
>
> If there's nothing there then it's likely that your issue was not
> SELinux-related.
I think the type=AVC prefixes are only added if running auditd (in which
case you'd be checking /var/log/audit/audit.log*). Otherwise, you'd
just get the raw audit message from the kernel in /var/log/messages.
The safest thing is to just look for "avc:"; that will be present
regardless.
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Stephen Smalley
National Security Agency
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looking for "avc:", I found lots of entries with "denied" in /var/log/messages
the entry is rather long so posting only the fragment (hope this will
still make the point). Its is something like this
==============
Jul 24 23:39:53 webcomp kernel: audit(1153755580.824:2): avc: denied
{ getattr } for pid=1153 comm="mount" name="kcore" dev=proc
ino=-268435435 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:proc_kcore_t:s0 tclass=file
Jul 24 23:39:54 webcomp kernel: audit(1153755580.856:3): avc: denied
{ getattr } for pid=1153 comm="mount" name="kcore" dev=proc
ino=-268435435 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:proc_kcore_t:s0 tclass=file
Jul 25 11:45:16 webcomp kernel: audit(1153799116.610:8): avc: denied
{ use } for pid=2467 comm="bluez-pin" name="[7581]" dev=pipefs
ino=7581 scontext=user_u:system_r:bluetooth_helper_t:s0
tcontext=system_u:system_r:xdm_t:s0-s0:c0.c255 tclass=fd
Jul 25 11:45:16 webcomp kernel: audit(1153799116.610:9): avc: denied
{ use } for pid=2467 comm="bluez-pin" name="[7581]" dev=pipefs
ino=7581 scontext=user_u:system_r:bluetooth_helper_t:s0
tcontext=system_u:system_r:xdm_t:s0-s0:c0.c255 tclass=fd
Jul 25 14:00:21 webcomp kernel: audit(1153807221.327:4): avc: denied
{ use } for pid=2291 comm="bluez-pin" name="[7243]" dev=pipefs
ino=7243 scontext=user_u:system_r:bluetooth_helper_t:s0
......
......
......
......
..... and so on
==============
What does this mean??? and most importantly why? and what is the solution?
Many thanks!
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