IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
device veth0_macvtap entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready
BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:424/tfrc_rx_hist_sample_rtt()
device veth1_macvtap entered promiscuous mode
CPU: 1 PID: 9420 Comm: syz-executor.1 Not tainted 4.14.290-syzkaller #0
IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
tfrc_rx_hist_sample_rtt.cold+0x59/0x5e net/dccp/ccids/lib/packet_history.c:424
ccid3_hc_rx_packet_recv+0x4fd/0xde0 net/dccp/ccids/ccid3.c:766
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xd3/0x240 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0xdb/0x140 net/dccp/input.c:368
IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready
dccp_v4_do_rcv+0x119/0x170 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:923 [inline]
__sk_receive_skb+0x5b9/0x960 net/core/sock.c:511
dccp_v4_rcv+0xe75/0x17e0 net/dccp/ipv4.c:877
IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready
ip_local_deliver_finish+0x3f2/0xab0 net/ipv4/ip_input.c:216
NF_HOOK include/linux/netfilter.h:250 [inline]
ip_local_deliver+0x167/0x460 net/ipv4/ip_input.c:257
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
dst_input include/net/dst.h:476 [inline]
ip_rcv_finish+0x6e3/0x19f0 net/ipv4/ip_input.c:396
NF_HOOK include/linux/netfilter.h:250 [inline]
ip_rcv+0x8a7/0xf10 net/ipv4/ip_input.c:493
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
__netif_receive_skb_core+0x15ee/0x2a30 net/core/dev.c:4474
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
__netif_receive_skb+0x27/0x1a0 net/core/dev.c:4512
process_backlog+0x218/0x6f0 net/core/dev.c:5195
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
napi_poll net/core/dev.c:5604 [inline]
net_rx_action+0x466/0xfd0 net/core/dev.c:5670
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
__do_softirq+0x24d/0x9ff kernel/softirq.c:288
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1016
</IRQ>
do_softirq.part.0+0x154/0x1b0 kernel/softirq.c:332
do_softirq kernel/softirq.c:324 [inline]
__local_bh_enable_ip+0x12b/0x170 kernel/softirq.c:185
local_bh_enable include/linux/bottom_half.h:32 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:725 [inline]
ip_finish_output2+0xbfc/0x1340 net/ipv4/ip_output.c:239
ip_finish_output+0x37c/0xc50 net/ipv4/ip_output.c:325
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
NF_HOOK_COND include/linux/netfilter.h:239 [inline]
ip_output+0x1cd/0x510 net/ipv4/ip_output.c:413
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
dst_output include/net/dst.h:470 [inline]
ip_local_out+0x93/0x170 net/ipv4/ip_output.c:125
ip_queue_xmit+0x82b/0x1b40 net/ipv4/ip_output.c:513
dccp_transmit_skb+0x8d6/0x11e0 net/dccp/output.c:142
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
dccp_xmit_packet+0x1c9/0x6d0 net/dccp/output.c:281
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
dccp_write_xmit+0x140/0x1a0 net/dccp/output.c:363
dccp_sendmsg+0x6f6/0x890 net/dccp/proto.c:811
inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
batman_adv: batadv0: Interface activated: batadv_slave_0
IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fa84fe2c279
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
RSP: 002b:00007fa84f5a1168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa84ff3ef80 RCX: 00007fa84fe2c279
RDX: 0000000000040000 RSI: 0000000020000400 RDI: 0000000000000005
RBP: 00007fa84fe86189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7b5ba28f R14: 00007fa84f5a1300 R15: 0000000000022000
dccp_close: ABORT with 195 bytes unread
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
dccp_close: ABORT with 195 bytes unread
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
dccp_close: ABORT with 195 bytes unread
dccp_close: ABORT with 195 bytes unread