Daniel J Walsh wrote:
The dhcp_t (/sbin/dhclient) trying to read/write an unconfined_t
unix_stream_socket, is a leaked file descriptor. So it is a bug in some
application that you are using to bring up your network. What app are
you using for this?
The following apps produce the issue: /sbin/ifup, /sbin/ifdown, and
/sbin/dhclient. Sample usage:
[root@gerbil ~]# /sbin/ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3776 errors:0 dropped:0 overruns:0 frame:0
TX packets:3776 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:188960 (184.5 KiB) TX bytes:188960 (184.5 KiB)
[root@gerbil ~]# /sbin/ifup eth0 <---------------------- AVC Denial
Determining IP information for eth0... done.
[root@gerbil ~]# /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:C5:3E:AC:A7
inet addr:192.168.2.4 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::215:c5ff:fe3e:aca7/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:15 errors:0 dropped:0 overruns:0 frame:0
TX packets:152 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3507 (3.4 KiB) TX bytes:34235 (33.4 KiB)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3776 errors:0 dropped:0 overruns:0 frame:0
TX packets:3776 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:188960 (184.5 KiB) TX bytes:188960 (184.5 KiB)
[root@gerbil ~]# /sbin/ifdown eth0 <---------------------- AVC Denial
[root@gerbil ~]# /sbin/ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3776 errors:0 dropped:0 overruns:0 frame:0
TX packets:3776 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:188960 (184.5 KiB) TX bytes:188960 (184.5 KiB)
[root@gerbil ~]# /sbin/ifconfig eth0 up
[root@gerbil ~]# /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:C5:3E:AC:A7
inet6 addr: fe80::215:c5ff:fe3e:aca7/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:16 errors:0 dropped:0 overruns:0 frame:0
TX packets:164 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3571 (3.4 KiB) TX bytes:36889 (36.0 KiB)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3776 errors:0 dropped:0 overruns:0 frame:0
TX packets:3776 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:188960 (184.5 KiB) TX bytes:188960 (184.5 KiB)
[root@gerbil ~]# /sbin/dhclient eth0 <---------------------- AVC Denial
[root@gerbil ~]# /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:C5:3E:AC:A7
inet addr:192.168.2.4 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::215:c5ff:fe3e:aca7/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17 errors:0 dropped:0 overruns:0 frame:0
TX packets:182 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3918 (3.8 KiB) TX bytes:41608 (40.6 KiB)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3776 errors:0 dropped:0 overruns:0 frame:0
TX packets:3776 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:188960 (184.5 KiB) TX bytes:188960 (184.5 KiB)
--
Steve Croll
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