bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:b2:1b:5f:cb:34:e2, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4107/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=195889, q=36613 ncpus=2)
task:syz.2.8367 state:R running task stack:23696 pid:4107 tgid:4103 ppid:28135 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7234
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7413
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0xe1/0x130 kernel/softirq.c:457
spin_unlock_bh include/linux/spinlock.h:396 [inline]
__fib6_clean_all+0x44a/0x580 net/ipv6/ip6_fib.c:2323
rt6_sync_up+0x136/0x180 net/ipv6/route.c:4913
addrconf_notify+0xd3f/0x1050 net/ipv6/addrconf.c:3763
notifier_call_chain+0x1a5/0x3d0 kernel/notifier.c:85
netif_state_change+0x27d/0x3a0 net/core/dev.c:1603
do_setlink+0x3c57/0x4670 net/core/rtnetlink.c:3462
rtnl_group_changelink net/core/rtnetlink.c:3863 [inline]
__rtnl_newlink net/core/rtnetlink.c:4031 [inline]
rtnl_newlink+0x148e/0x1bd0 net/core/rtnetlink.c:4159
rtnetlink_rcv_msg+0x802/0xc00 net/core/rtnetlink.c:7076
netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0x54e/0x850 net/socket.c:2684
___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
__sys_sendmsg net/socket.c:2770 [inline]
__do_sys_sendmsg net/socket.c:2775 [inline]
__se_sys_sendmsg net/socket.c:2773 [inline]
__x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff5f659de59
RSP: 002b:00007ff5f754c028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ff5f6825fa0 RCX: 00007ff5f659de59
RDX: 0000000004000000 RSI: 0000200000000200 RDI: 000000000000000b
RBP: 00007ff5f6633e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff5f6826038 R14: 00007ff5f6825fa0 R15: 00007fff8eaa2578
rcu: rcu_preempt kthread starved for 10132 jiffies! g195889 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28192 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7234
__schedule_loop kernel/sched/core.c:7311 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7326
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2123
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2325
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 10480 Comm: kworker/u8:31 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
RIP: 0010:__remove_hrtimer+0x16f/0x3e0 kernel/time/hrtimer.c:1156
Code: 20 00 00 00 44 89 e6 e8 ff 27 13 00 49 83 fc 1f 0f 87 f7 01 00 00 e8 b0 23 13 00 bb fe ff ff ff 44 89 e1 d3 c3 48 8b 44 24 08 <4c> 8d 60 44 4c 89 e0 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 ea 01 00
RSP: 0018:ffffc90000a07db8 EFLAGS: 00000007
RAX: ffff8880b87281c0 RBX: 00000000fffffffd RCX: 0000000000000001
RDX: 0000000000010100 RSI: 0000000000000001 RDI: 0000000000000020
RBP: dffffc0000000000 R08: ffff88807dee8327 R09: 0000000000000000
R10: ffff88807dee8318 R11: ffffed100fbdd065 R12: 0000000000000001
R13: 0000000000000000 R14: ffff88807dee8300 R15: ffff8880b8728300
FS: 0000000000000000(0000) GS:ffff888125058000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f16b12cdeb8 CR3: 00000000861cc000 CR4: 00000000003526f0
Call Trace:
__run_hrtimer kernel/time/hrtimer.c:2012 [inline]
__hrtimer_run_queues+0x295/0xa10 kernel/time/hrtimer.c:2096
hrtimer_interrupt+0x448/0x910 kernel/time/hrtimer.c:2215
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
__sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2039 [inline]
RIP: 0010:vprintk_emit+0x45d/0x560 kernel/printk/printk.c:2478
Code: 0f 84 44 ff ff ff e8 b2 6a 21 00 fb eb 44 e8 aa 6a 21 00 e8 85 ed 29 0a 4d 85 f6 74 94 e8 9b 6a 21 00 fb 48 c7 c7 a0 bf b4 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 fb 1b
RSP: 0018:ffffc90000a080e0 EFLAGS: 00000246
RAX: ffffffff81a507a5 RBX: ffffffff81a5061f RCX: ffff888026281f00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffffffff8eb4bfa0
RBP: ffffc90000a08190 R08: ffffffff905776f7 R09: 1ffffffff20aeede
R10: dffffc0000000000 R11: fffffbfff20aeedf R12: 0000000000000000
R13: 000000000000006e R14: 0000000000000200 R15: 1ffff92000141020
_printk+0xdd/0x130 kernel/printk/printk.c:2504
br_fdb_update+0x657/0x6c0 net/bridge/br_fdb.c:987
br_handle_frame_finish+0x618/0x1990 net/bridge/br_input.c:144
br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:1165 [inline]
br_nf_pre_routing_finish+0x138a/0x1a10 net/bridge/br_netfilter_hooks.c:430
NF_HOOK+0x64e/0x6e0 include/linux/netfilter.h:318
br_nf_pre_routing+0xec2/0x14b0 net/bridge/br_netfilter_hooks.c:539
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
br_handle_frame+0x127f/0x1510 net/bridge/br_input.c:442
__netif_receive_skb_core+0x989/0x30b0 net/core/dev.c:6093
__netif_receive_skb_one_core net/core/dev.c:6204 [inline]
__netif_receive_skb net/core/dev.c:6319 [inline]
process_backlog+0x706/0x1860 net/core/dev.c:6670
__napi_poll+0xaa/0x330 net/core/dev.c:7729
napi_poll net/core/dev.c:7792 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:7949
handle_softirqs+0x225/0x840 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:blake2s_compress+0x1b55/0x1c00 lib/crypto/x86/blake2s.h:-1
Code: 64 24 14 e8 8d 01 5f fd 4c 89 f1 44 8b 64 24 14 48 8b 94 24 98 00 00 00 e9 d9 fb ff ff e8 f3 74 f1 fc 48 8b 84 24 90 00 00 00 <48> ba 00 00 00 00 00 fc ff df eb 32 e8 da 74 f1 fc eb 05 e8 d3 74
RSP: 0018:ffffc900038070e0 EFLAGS: 00000293
RAX: 1ffff92000700e40 RBX: 0000000000000000 RCX: ffff888026281f00
RDX: 0000000000000000 RSI: ffffffff8e22a444 RDI: ffffffff8c4bd380
RBP: ffffc90003807328 R08: ffffffff905776f7 R09: 1ffffffff20aeede
R10: dffffc0000000000 R11: fffffbfff20aeedf R12: 0000000000000040
R13: 0000000000000001 R14: ffffc900038073f0 R15: ffffc900038073c0
blake2s_update+0x140/0x450 lib/crypto/blake2s.c:119
hmac+0x2d1/0x3b0 drivers/net/wireguard/noise.c:332
kdf+0x12d/0x290 drivers/net/wireguard/noise.c:367
mix_dh drivers/net/wireguard/noise.c:413 [inline]
wg_noise_handshake_create_initiation+0x29e/0x810 drivers/net/wireguard/noise.c:550
wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:34 [inline]
wg_packet_handshake_send_worker+0x18c/0x370 drivers/net/wireguard/send.c:51
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
bridge0: received packet on veth1_to_bridge with own address as source address (addr:b2:1b:5f:cb:34:e2, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:b2:1b:5f:cb:34:e2, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:b2:1b:5f:cb:34:e2, vlan:0)
net_ratelimit: 14305 callbacks suppressed
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:b2:1b:5f:cb:34:e2, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:b2:1b:5f:cb:34:e2, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:b2:1b:5f:cb:34:e2, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:b2:1b:5f:cb:34:e2, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)