bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6297/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=130665, q=381 ncpus=2)
task:kworker/R-wg-cr state:R running task stack:25912 pid:6297 tgid:6297 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: wg-crypt-wg1 wg_packet_encrypt_worker
Call Trace:
context_switch kernel/sched/core.c:5397 [inline]
__schedule+0x16fd/0x4cf0 kernel/sched/core.c:6786
preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7109
irqentry_exit+0x6f/0x90 kernel/entry/common.c:307
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__skb_flow_dissect+0x5bf/0x68b0 net/core/flow_dissector.c:1137
Code: e8 16 2d 53 f8 89 c3 31 ff 89 c6 e8 9b 5a 6d f8 85 db 0f 84 6b 05 00 00 e8 4e 56 6d f8 e9 13 ff ff ff e8 44 56 6d f8 4d 85 ed <74> 0f 4c 8b 74 24 20 e8 35 56 6d f8 e9 01 01 00 00 49 81 c6 80 14
RSP: 0018:ffffc90003b8ed80 EFLAGS: 00000246
RAX: ffffffff8952d002 RBX: 0000000000000001 RCX: ffff888024aa8000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003b8f398 R08: 0000000000000000 R09: ffffffff8952ced8
R10: dffffc0000000000 R11: fffff52000771e8a R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888027162080 R15: ffffffff8fa25080
__skb_get_hash_net+0xcb/0x2d0 net/core/flow_dissector.c:1898
skb_get_hash include/linux/skbuff.h:1615 [inline]
encrypt_packet drivers/net/wireguard/send.c:173 [inline]
wg_packet_encrypt_worker+0x3ab/0x1720 drivers/net/wireguard/send.c:297
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
rescuer_thread+0x53c/0xdd0 kernel/workqueue.c:3498
kthread+0x711/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: rcu_preempt kthread starved for 255 jiffies! g130665 f0x0 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:26792 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5397 [inline]
__schedule+0x16fd/0x4cf0 kernel/sched/core.c:6786
__schedule_loop kernel/sched/core.c:6864 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6879
schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2054
rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2256
kthread+0x711/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 48 Comm: kworker/u8:3 Not tainted 6.16.0-rc7-syzkaller-00018-g01a412d06bc5 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
RIP: 0010:rcu_read_lock_held_common kernel/rcu/update.c:105 [inline]
RIP: 0010:rcu_read_lock_held+0xa/0x50 kernel/rcu/update.c:349
Code: cc 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 53 e8 56 a2 c7 09 <85> c0 74 26 31 db e8 fb 2d 01 00 84 c0 74 20 e8 b2 74 01 00 84 c0
RSP: 0018:ffffc90000a07690 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff888079af6000 RCX: ffff88801d6ada00
RDX: ffff88801d6ada00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1100aa01619 R08: ffffc90000a079a0 R09: ffffc90000a079b0
R10: dffffc0000000000 R11: fffff52000140f02 R12: 0000000000000001
R13: 0000000000000003 R14: 1ffff1100aa0161b R15: ffff88805500b0df
FS: 0000000000000000(0000) GS:ffff888125d23000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe7042382c CR3: 0000000059828000 CR4: 0000000000350ef0
Call Trace:
__in6_dev_get include/net/addrconf.h:347 [inline]
ip6_ignore_linkdown include/net/addrconf.h:443 [inline]
find_match+0xf1/0xc90 net/ipv6/route.c:781
__find_rr_leaf+0x23a/0x6d0 net/ipv6/route.c:869
find_rr_leaf net/ipv6/route.c:890 [inline]
rt6_select net/ipv6/route.c:934 [inline]
fib6_table_lookup+0x39f/0xa80 net/ipv6/route.c:2232
ip6_pol_route+0x222/0x1180 net/ipv6/route.c:2268
pol_lookup_func include/net/ip6_fib.h:617 [inline]
fib6_rule_lookup+0x52f/0x6f0 net/ipv6/fib6_rules.c:120
ip6_route_input_lookup net/ipv6/route.c:2337 [inline]
ip6_route_input+0x6ce/0xa50 net/ipv6/route.c:2640
ip6_rcv_finish+0x141/0x2d0 net/ipv6/ip6_input.c:77
ip_sabotage_in+0x1e1/0x270 net/bridge/br_netfilter_hooks.c:993
nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:623
nf_hook include/linux/netfilter.h:272 [inline]
NF_HOOK+0x206/0x3a0 include/linux/netfilter.h:315
__netif_receive_skb_one_core net/core/dev.c:5977 [inline]
__netif_receive_skb+0xd3/0x380 net/core/dev.c:6090
netif_receive_skb_internal net/core/dev.c:6176 [inline]
netif_receive_skb+0x1cb/0x790 net/core/dev.c:6235
NF_HOOK+0xa0/0x390 include/linux/netfilter.h:318
br_handle_frame_finish+0x14d1/0x19b0 net/bridge/br_input.c:-1
br_nf_hook_thresh+0x3c6/0x4a0 net/bridge/br_netfilter_hooks.c:-1
br_nf_pre_routing_finish_ipv6+0x948/0xd00 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:317 [inline]
br_nf_pre_routing_ipv6+0x37e/0x6b0 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:283 [inline]
br_handle_frame+0x982/0x14c0 net/bridge/br_input.c:434
__netif_receive_skb_core+0x10e1/0x4180 net/core/dev.c:5863
__netif_receive_skb_one_core net/core/dev.c:5975 [inline]
__netif_receive_skb+0x72/0x380 net/core/dev.c:6090
process_backlog+0x60e/0x14f0 net/core/dev.c:6442
__napi_poll+0xc7/0x480 net/core/dev.c:7414
napi_poll net/core/dev.c:7478 [inline]
net_rx_action+0x707/0xe30 net/core/dev.c:7605
handle_softirqs+0x286/0x870 kernel/softirq.c:579
do_softirq+0xec/0x180 kernel/softirq.c:480
__local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407
local_bh_enable include/linux/bottom_half.h:33 [inline]
fpregs_unlock arch/x86/include/asm/fpu/api.h:77 [inline]
kernel_fpu_end+0xd2/0x120 arch/x86/kernel/fpu/core.c:476
blake2s_compress+0x5f/0xd0 arch/x86/lib/crypto/blake2s-glue.c:46
blake2s_final+0x116/0x260 lib/crypto/blake2s.c:54
hmac+0x1c6/0x330 drivers/net/wireguard/noise.c:325
kdf+0x182/0x270 drivers/net/wireguard/noise.c:375
mix_dh drivers/net/wireguard/noise.c:413 [inline]
wg_noise_handshake_create_initiation+0x2f0/0x7e0 drivers/net/wireguard/noise.c:550
wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:34 [inline]
wg_packet_handshake_send_worker+0x163/0x320 drivers/net/wireguard/send.c:51
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
kthread+0x711/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 10056 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e6:e3:7a:8b:db:1d, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e6:e3:7a:8b:db:1d, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e6:e3:7a:8b:db:1d, vlan:0)
net_ratelimit: 12184 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e6:e3:7a:8b:db:1d, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e6:e3:7a:8b:db:1d, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e6:e3:7a:8b:db:1d, vlan:0)