'avc denied'

jackson byers byersjab at gmail.com
Tue Nov 22 23:23:36 UTC 2011


# uname -r
2.6.35.14-103.fc14.i686.PAE



I haven't paid much attention to avc warnings.

did /.autorelabel, reboot, to see if  that could stop avc.

Still see
'avc:  denied'   in auditlog,   involving  firefox, plugin-config,...

last 6  of # grep -n avc audit.log:


279:type=AVC msg=audit(1321983739.130:242): avc:  denied  { read } for
 pid=20223 comm="ldd" name="firefox" dev=sda8 ino=999863
scontext=system_u:system_r:setroubleshootd_t:s0
tcontext=system_u:object_r:mozilla_exec_t:s0 tclass=file
281:type=AVC msg=audit(1321983739.134:243): avc:  denied  { sys_ptrace
} for  pid=20215 comm="setroubleshootd" capability=19
scontext=system_u:system_r:setroubleshootd_t:s0
tcontext=system_u:system_r:setroubleshootd_t:s0 tclass=capability
283:type=AVC msg=audit(1321983739.312:244): avc:  denied  { read } for
 pid=20225 comm="ldd" name="firefox" dev=sda8 ino=999863
scontext=system_u:system_r:setroubleshootd_t:s0
tcontext=system_u:object_r:mozilla_exec_t:s0 tclass=file
285:type=AVC msg=audit(1321983739.314:245): avc:  denied  { sys_ptrace
} for  pid=20215 comm="setroubleshootd" capability=19
scontext=system_u:system_r:setroubleshootd_t:s0
tcontext=system_u:system_r:setroubleshootd_t:s0 tclass=capability
302:type=AVC msg=audit(1321989501.906:261): avc:  denied  { execstack
} for  pid=21019 comm="plugin-config"
scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
tclass=process
304:type=AVC msg=audit(1321989519.158:262): avc:  denied  { read } for
 pid=21046 comm="ldd" name="plugin-config" dev=sda8 ino=1000054
scontext=system_u:system_r:setroubleshootd_t:s0
tcontext=system_u:object_r:nsplugin_config_exec_t:s0 tclass=file
[root at f14 audit]#


no 'file_t' seen:

[root at f14 audit]# grep file_t audit.log
[root at f14 audit]#

I have put only minimal effort into learning selinux syntax, methods.
Overwhelming, to me.

are there simple rules on how to respond to 'avc denied'?

If I do nothing?

Jack


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