possible deadlock in dev_uc_sync_multiple (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: a6ca7c65b137 Linux 4.14.260
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10be5e2bb00000
kernel config: https://syzkaller.appspot.com/x/.config?x=6eeb01284ed5abab
dashboard link: https://syzkaller.appspot.com/bug?extid=eccabf1916bbd7a9961b
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+eccabf...@syzkaller.appspotmail.com

device bond_slave_1 entered promiscuous mode
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered forwarding state
8021q: adding VLAN 0 to HW filter on device team0
============================================
WARNING: possible recursive locking detected
4.14.260-syzkaller #0 Not tainted
--------------------------------------------
syz-executor.2/25821 is trying to acquire lock:
(&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c5e4cb>] netif_addr_lock_nested include/linux/netdevice.h:3711 [inline]
(&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c5e4cb>] dev_uc_sync_multiple+0x10b/0x1c0 net/core/dev_addr_lists.c:574

but task is already holding lock:
(&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c4ee2b>] spin_lock_bh include/linux/spinlock.h:322 [inline]
(&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c4ee2b>] netif_addr_lock_bh include/linux/netdevice.h:3716 [inline]
(&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c4ee2b>] dev_set_rx_mode net/core/dev.c:6729 [inline]
(&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c4ee2b>] __dev_open+0x21b/0x310 net/core/dev.c:1375

other info that might help us debug this:
Possible unsafe locking scenario:

CPU0
----
lock(&vlan_netdev_addr_lock_key#2/2);
lock(&vlan_netdev_addr_lock_key#2/2);

*** DEADLOCK ***

May be due to missing lock nesting notation

4 locks held by syz-executor.2/25821:
#0: (rtnl_mutex){+.+.}, at: [<ffffffff85c8542d>] rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: (rtnl_mutex){+.+.}, at: [<ffffffff85c8542d>] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4315
#1: (&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c4ee2b>] spin_lock_bh include/linux/spinlock.h:322 [inline]
#1: (&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c4ee2b>] netif_addr_lock_bh include/linux/netdevice.h:3716 [inline]
#1: (&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c4ee2b>] dev_set_rx_mode net/core/dev.c:6729 [inline]
#1: (&vlan_netdev_addr_lock_key#2/2){+...}, at: [<ffffffff85c4ee2b>] __dev_open+0x21b/0x310 net/core/dev.c:1375
#2: (&dev_addr_list_lock_key#2/1){+...}, at: [<ffffffff85c5dfbb>] netif_addr_lock_nested include/linux/netdevice.h:3711 [inline]
#2: (&dev_addr_list_lock_key#2/1){+...}, at: [<ffffffff85c5dfbb>] dev_mc_sync+0x10b/0x1c0 net/core/dev_addr_lists.c:765
#3: (rcu_read_lock){....}, at: [<ffffffff83d3c7c0>] team_set_rx_mode+0x0/0x1e0 drivers/net/team/team.c:514

stack backtrace:
CPU: 1 PID: 25821 Comm: syz-executor.2 Not tainted 4.14.260-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
print_deadlock_bug kernel/locking/lockdep.c:1800 [inline]
check_deadlock kernel/locking/lockdep.c:1847 [inline]
validate_chain kernel/locking/lockdep.c:2448 [inline]
__lock_acquire.cold+0x180/0x97c kernel/locking/lockdep.c:3491
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
_raw_spin_lock_nested+0x30/0x40 kernel/locking/spinlock.c:362
netif_addr_lock_nested include/linux/netdevice.h:3711 [inline]
dev_uc_sync_multiple+0x10b/0x1c0 net/core/dev_addr_lists.c:574
team_set_rx_mode+0xb8/0x1e0 drivers/net/team/team.c:1781
__dev_set_rx_mode+0x191/0x2a0 net/core/dev.c:6724
dev_mc_sync+0x17a/0x1c0 net/core/dev_addr_lists.c:768
vlan_dev_set_rx_mode+0x38/0x80 net/8021q/vlan_dev.c:486
__dev_set_rx_mode+0x191/0x2a0 net/core/dev.c:6724
dev_set_rx_mode net/core/dev.c:6730 [inline]
__dev_open+0x223/0x310 net/core/dev.c:1375
__dev_change_flags+0x43f/0x540 net/core/dev.c:6802
dev_change_flags+0x7e/0x130 net/core/dev.c:6868
vlan_device_event+0x1261/0x1ad0 net/8021q/vlan.c:454
notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93
call_netdevice_notifiers_info net/core/dev.c:1667 [inline]
call_netdevice_notifiers net/core/dev.c:1683 [inline]
__dev_notify_flags+0xdf/0x260 net/core/dev.c:6840
dev_change_flags+0xe6/0x130 net/core/dev.c:6873
do_setlink+0x83f/0x2bf0 net/core/rtnetlink.c:2092
rtnl_group_changelink net/core/rtnetlink.c:2512 [inline]
rtnl_newlink+0xccc/0x1860 net/core/rtnetlink.c:2666
rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4320
netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2446
netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline]
netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320
netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7ff1a95d0e99
RSP: 002b:00007ff1a7f25168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ff1a96e4030 RCX: 00007ff1a95d0e99
RDX: 0000000000000000 RSI: 0000000020000380 RDI: 0000000000000006
RBP: 00007ff1a962aff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe90fad01f R14: 00007ff1a7f25300 R15: 0000000000022000
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
bridge0: port 3(team0) entered disabled state
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
IPv6: ADDRCONF(NETDEV_CHANGE): Y�4��`Ҙ: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered forwarding state
8021q: adding VLAN 0 to HW filter on device team0
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
bridge0: port 3(team0) entered disabled state
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
IPv6: ADDRCONF(NETDEV_CHANGE): Y�4��`Ҙ: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered forwarding state
8021q: adding VLAN 0 to HW filter on device team0
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
bridge0: port 3(team0) entered disabled state
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
IPv6: ADDRCONF(NETDEV_CHANGE): Y�4��`Ҙ: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device vlan3 left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_1
bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_1
device Y�4��`Ҙ left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
device Y�4��`Ҙ left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered forwarding state
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device vlan3 left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
device Y�4��`Ҙ left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
bridge0: port 3(team0) entered disabled state
bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
device Y�4��`Ҙ left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered forwarding state
8021q: adding VLAN 0 to HW filter on device team0
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
device Y�4��`Ҙ left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device vlan3 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
bridge0: port 3(team0) entered disabled state
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device vlan3 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device vlan3 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device vlan3 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
net_ratelimit: 7 callbacks suppressed
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
bridge0: port 3(team0) entered disabled state
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
IPv6: ADDRCONF(NETDEV_CHANGE): Y�4��`Ҙ: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered forwarding state
8021q: adding VLAN 0 to HW filter on device team0
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device vlan3 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device vlan3 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
bridge0: port 3(team0) entered disabled state
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
IPv6: ADDRCONF(NETDEV_CHANGE): Y�4��`Ҙ: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered forwarding state
8021q: adding VLAN 0 to HW filter on device team0
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device vlan3 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): vlan2: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
IPv6: ADDRCONF(NETDEV_CHANGE): Y�4��`Ҙ: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check.
device bond0 left promiscuous mode
device bond_slave_0 left promiscuous mode
device bond_slave_1 left promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device vlan3 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
device vlan3 entered promiscuous mode
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected


---
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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.