Public bug reported:
While configuring a system based on ubuntu 22.04 version , we found that
a system-d udev rules assign a random mac address to one of the network
interfaces .
Kernel version
uname -a
5.15.0-25-generic #25-Ubuntu SMP Wed Mar 30 15:54:22 UTC 2022 x86_64
x86_64 x86_64 GNU/Linux
Ubunutu version
root@maglev-master-10-106-0-137:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.5 LTS
Release: 22.04
Codename: jammy
ip addr show output which shows the mac address has been changed
ens192: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master
management state UP group default qlen 1000
link/ether d2:29:6b:94:be:bd brd ff:ff:ff:ff:ff:ff permaddr
00:50:56:b8:ed:a0
altname enp11s0
d2:29:6b:94:be:bd is being randomly assigned while permanent address is
00:50:56:b8:ed:a0
root@maglev-master-10-106-0-137:~# ethtool -P ens192
Permanent address: 00:50:56:b8:ed:a0
PID: 1760 (snmpd) changed MAC to 00:00:00:00:00:00
PID: 1760 (snmpd) changed MAC to 00:00:00:00:00:00
PID: 15073 (systemd-udevd) changed MAC to d2:29:6b:94:be:bd
PID: 15073 (systemd-udevd) changed MAC to d2:29:6b:94:be:bd
PID: 15073 (systemd-udevd) changed MAC to d2:29:6b:94:be:bd
PID: 15084 (ip) changed MAC to d2:29:6b:94:be:bd
PID: 15084 (ip) changed MAC to d2:29:6b:94:be:bd
bpftrace output
Invoked kprobe:dev_set_mac_address_user with MAC d2:29:6b:94:be:bd
Stack trace:
dev_set_mac_address_user+1
rtnl_setlink+246
rtnetlink_rcv_msg+349
netlink_rcv_skb+83
rtnetlink_rcv+21
netlink_unicast+538
netlink_sendmsg+588
sock_sendmsg+98
__sys_sendto+275
__x64_sys_sendto+36
do_syscall_64+89
entry_SYSCALL_64_after_hwframe+68
systemd-udevd(7123) systemd-udevd(6656)
Invoked kprobe:dev_set_mac_address with MAC d2:29:6b:94:be:bd
Stack trace:
dev_set_mac_address+1
do_setlink+2217
rtnl_setlink+246
rtnetlink_rcv_msg+349
netlink_rcv_skb+83
rtnetlink_rcv+21
netlink_unicast+538
netlink_sendmsg+588
sock_sendmsg+98
__sys_sendto+275
__x64_sys_sendto+36
do_syscall_64+89
entry_SYSCALL_64_after_hwframe+68
systemd-udevd(7123) systemd-udevd(6656)
Invoked kprobe:bond_set_mac_address with MAC d2:29:6b:94:be:bd
Stack trace:
bond_set_mac_address+1
dev_set_mac_address_user+50
do_setlink+2217
rtnl_setlink+246
rtnetlink_rcv_msg+349
netlink_rcv_skb+83
rtnetlink_rcv+21
netlink_unicast+538
netlink_sendmsg+588
sock_sendmsg+98
__sys_sendto+275
__x64_sys_sendto+36
do_syscall_64+89
entry_SYSCALL_64_after_hwframe+68
ip(7137) sh(7135) python3(7013) twistd3(2045)
web_install_ser(1959)
Invoked kprobe:dev_set_mac_address with MAC d2:29:6b:94:be:bd
Stack trace:
dev_set_mac_address+1
do_set_master+146
do_setlink+684
__rtnl_newlink+1560
rtnl_newlink+73
rtnetlink_rcv_msg+349
netlink_rcv_skb+83
rtnetlink_rcv+21
netlink_unicast+538
netlink_sendmsg+588
sock_sendmsg+98
____sys_sendmsg+590
___sys_sendmsg+129
__sys_sendmsg+98
__x64_sys_sendmsg+29
do_syscall_64+89
entry_SYSCALL_64_after_hwframe+68
ip(7137) sh(7135) python3(7013) twistd3(2045)
web_install_ser(1959)
Invoked kprobe:vmxnet3_set_mac_addr with MAC d2:29:6b:94:be:bd
Stack trace:
vmxnet3_set_mac_addr+1
bond_enslave+1521
do_set_master+146
do_setlink+684
__rtnl_newlink+1560
rtnl_newlink+73
rtnetlink_rcv_msg+349
netlink_rcv_skb+83
rtnetlink_rcv+21
netlink_unicast+538
netlink_sendmsg+588
sock_sendmsg+98
____sys_sendmsg+590
___sys_sendmsg+129
__sys_sendmsg+98
__x64_sys_sendmsg+29
do_syscall_64+89
entry_SYSCALL_64_after_hwframe+68
Not able to understand why this systemd rule is triggering and
assigning MAC address randomly while we have a permanent Mac configured
for that network interface .
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
While configuring a system based on ubuntu 22.04 version , we found that
a system-d udev rules assign a random mac address to one of the network
interfaces .
-
Kernel version
uname -a
5.15.0-25-generic #25-Ubuntu SMP Wed Mar 30 15:54:22 UTC 2022 x86_64
x86_64 x86_64 GNU/Linux
+ Ubunutu version
- Ubunutu version
-
- root@maglev-master-10-106-0-137:~# lsb_release -a
+ root@maglev-master-10-106-0-137:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.5 LTS
Release: 22.04
Codename: jammy
+ ip addr show output which shows the mac address has been changed
+ ens192: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master
management state UP group default qlen 1000
+ link/ether d2:29:6b:94:be:bd brd ff:ff:ff:ff:ff:ff permaddr
00:50:56:b8:ed:a0
+ altname enp11s0
- ip addr show output which shows the mac address has been changed
-
- ens192: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master
management state UP group default qlen 1000
- link/ether d2:29:6b:94:be:bd brd ff:ff:ff:ff:ff:ff permaddr
00:50:56:b8:ed:a0
- altname enp11s0
-
-
- d2:29:6b:94:be:bd is being randomly assigned while permanent address is
00:50:56:b8:ed:a0
-
+ d2:29:6b:94:be:bd is being randomly assigned while permanent address is
+ 00:50:56:b8:ed:a0
root@maglev-master-10-106-0-137:~# ethtool -P ens192
Permanent address: 00:50:56:b8:ed:a0
-
-
PID: 1760 (snmpd) changed MAC to 00:00:00:00:00:00
PID: 1760 (snmpd) changed MAC to 00:00:00:00:00:00
PID: 15073 (systemd-udevd) changed MAC to d2:29:6b:94:be:bd
PID: 15073 (systemd-udevd) changed MAC to d2:29:6b:94:be:bd
PID: 15073 (systemd-udevd) changed MAC to d2:29:6b:94:be:bd
PID: 15084 (ip) changed MAC to d2:29:6b:94:be:bd
- PID: 15084 (ip) changed MAC to d2:29:6b:94:be:bd
+ PID: 15084 (ip) changed MAC to d2:29:6b:94:be:bd
-
- bpftrace output
-
+ bpftrace output
Invoked kprobe:dev_set_mac_address_user with MAC d2:29:6b:94:be:bd
Stack trace:
- dev_set_mac_address_user+1
- rtnl_setlink+246
- rtnetlink_rcv_msg+349
- netlink_rcv_skb+83
- rtnetlink_rcv+21
- netlink_unicast+538
- netlink_sendmsg+588
- sock_sendmsg+98
- __sys_sendto+275
- __x64_sys_sendto+36
- do_syscall_64+89
- entry_SYSCALL_64_after_hwframe+68
+ dev_set_mac_address_user+1
+ rtnl_setlink+246
+ rtnetlink_rcv_msg+349
+ netlink_rcv_skb+83
+ rtnetlink_rcv+21
+ netlink_unicast+538
+ netlink_sendmsg+588
+ sock_sendmsg+98
+ __sys_sendto+275
+ __x64_sys_sendto+36
+ do_syscall_64+89
+ entry_SYSCALL_64_after_hwframe+68
- systemd-udevd(7123) systemd-udevd(6656)
+ systemd-udevd(7123) systemd-udevd(6656)
Invoked kprobe:dev_set_mac_address with MAC d2:29:6b:94:be:bd
Stack trace:
- dev_set_mac_address+1
- do_setlink+2217
- rtnl_setlink+246
- rtnetlink_rcv_msg+349
- netlink_rcv_skb+83
- rtnetlink_rcv+21
- netlink_unicast+538
- netlink_sendmsg+588
- sock_sendmsg+98
- __sys_sendto+275
- __x64_sys_sendto+36
- do_syscall_64+89
- entry_SYSCALL_64_after_hwframe+68
+ dev_set_mac_address+1
+ do_setlink+2217
+ rtnl_setlink+246
+ rtnetlink_rcv_msg+349
+ netlink_rcv_skb+83
+ rtnetlink_rcv+21
+ netlink_unicast+538
+ netlink_sendmsg+588
+ sock_sendmsg+98
+ __sys_sendto+275
+ __x64_sys_sendto+36
+ do_syscall_64+89
+ entry_SYSCALL_64_after_hwframe+68
- systemd-udevd(7123) systemd-udevd(6656)
+ systemd-udevd(7123) systemd-udevd(6656)
Invoked kprobe:bond_set_mac_address with MAC d2:29:6b:94:be:bd
Stack trace:
- bond_set_mac_address+1
- dev_set_mac_address_user+50
- do_setlink+2217
- rtnl_setlink+246
- rtnetlink_rcv_msg+349
- netlink_rcv_skb+83
- rtnetlink_rcv+21
- netlink_unicast+538
- netlink_sendmsg+588
- sock_sendmsg+98
- __sys_sendto+275
- __x64_sys_sendto+36
- do_syscall_64+89
- entry_SYSCALL_64_after_hwframe+68
+ bond_set_mac_address+1
+ dev_set_mac_address_user+50
+ do_setlink+2217
+ rtnl_setlink+246
+ rtnetlink_rcv_msg+349
+ netlink_rcv_skb+83
+ rtnetlink_rcv+21
+ netlink_unicast+538
+ netlink_sendmsg+588
+ sock_sendmsg+98
+ __sys_sendto+275
+ __x64_sys_sendto+36
+ do_syscall_64+89
+ entry_SYSCALL_64_after_hwframe+68
- ip(7137) sh(7135) python3(7013) twistd3(2045)
web_install_ser(1959)
+ ip(7137) sh(7135) python3(7013) twistd3(2045)
web_install_ser(1959)
Invoked kprobe:dev_set_mac_address with MAC d2:29:6b:94:be:bd
Stack trace:
- dev_set_mac_address+1
- do_set_master+146
- do_setlink+684
- __rtnl_newlink+1560
- rtnl_newlink+73
- rtnetlink_rcv_msg+349
- netlink_rcv_skb+83
- rtnetlink_rcv+21
- netlink_unicast+538
- netlink_sendmsg+588
- sock_sendmsg+98
- ____sys_sendmsg+590
- ___sys_sendmsg+129
- __sys_sendmsg+98
- __x64_sys_sendmsg+29
- do_syscall_64+89
- entry_SYSCALL_64_after_hwframe+68
+ dev_set_mac_address+1
+ do_set_master+146
+ do_setlink+684
+ __rtnl_newlink+1560
+ rtnl_newlink+73
+ rtnetlink_rcv_msg+349
+ netlink_rcv_skb+83
+ rtnetlink_rcv+21
+ netlink_unicast+538
+ netlink_sendmsg+588
+ sock_sendmsg+98
+ ____sys_sendmsg+590
+ ___sys_sendmsg+129
+ __sys_sendmsg+98
+ __x64_sys_sendmsg+29
+ do_syscall_64+89
+ entry_SYSCALL_64_after_hwframe+68
- ip(7137) sh(7135) python3(7013) twistd3(2045)
web_install_ser(1959)
+ ip(7137) sh(7135) python3(7013) twistd3(2045)
web_install_ser(1959)
Invoked kprobe:vmxnet3_set_mac_addr with MAC d2:29:6b:94:be:bd
Stack trace:
- vmxnet3_set_mac_addr+1
- bond_enslave+1521
- do_set_master+146
- do_setlink+684
- __rtnl_newlink+1560
- rtnl_newlink+73
- rtnetlink_rcv_msg+349
- netlink_rcv_skb+83
- rtnetlink_rcv+21
- netlink_unicast+538
- netlink_sendmsg+588
- sock_sendmsg+98
- ____sys_sendmsg+590
- ___sys_sendmsg+129
- __sys_sendmsg+98
- __x64_sys_sendmsg+29
- do_syscall_64+89
- entry_SYSCALL_64_after_hwframe+68
-
+ vmxnet3_set_mac_addr+1
+ bond_enslave+1521
+ do_set_master+146
+ do_setlink+684
+ __rtnl_newlink+1560
+ rtnl_newlink+73
+ rtnetlink_rcv_msg+349
+ netlink_rcv_skb+83
+ rtnetlink_rcv+21
+ netlink_unicast+538
+ netlink_sendmsg+588
+ sock_sendmsg+98
+ ____sys_sendmsg+590
+ ___sys_sendmsg+129
+ __sys_sendmsg+98
+ __x64_sys_sendmsg+29
+ do_syscall_64+89
+ entry_SYSCALL_64_after_hwframe+68
Not able to understand why this systemd rule is triggering and
assigning MAC address randomly while we have a permanent Mac configured
for that network interface .
--
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https://bugs.launchpad.net/bugs/2104155
Title:
systemd-udev interferes with MAC addresses of interfaces
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