bridge0: received packet on veth0_to_bridge with own address as source address (addr:ea:8d:a8:32:6d:c3, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P16765/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=72941, q=2898 ncpus=2)
task:syz-executor state:R running task stack:22592 pid:16765 tgid:16765 ppid:16750 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5298 [inline]
__schedule+0x15dd/0x52d0 kernel/sched/core.c:6911
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7238
irqentry_exit+0x599/0x620 kernel/entry/common.c:239
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:debug_lockdep_rcu_enabled+0x20/0x40 kernel/rcu/update.c:321
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d b3 58 62 04 00 74 1d 83 3d aa 8a 62 04 00 74 14 65 48 8b 0d e8 17 6d 07 <31> c0 83 b9 54 0b 00 00 00 0f 94 c0 c3 cc cc cc cc cc cc cc cc cc
RSP: 0018:ffffc9003d0f7250 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff90b4e601 RCX: ffff8880554dbd00
RDX: ffffc9003d0f7301 RSI: dffffc0000000000 RDI: ffffc9003d0f7330
RBP: dffffc0000000000 R08: ffffc9003d0f75a0 R09: 0000000000000000
R10: ffffc9003d0f7378 R11: fffff52007a1ee71 R12: ffffc9003d0f75b0
R13: ffffc9003d0f0000 R14: ffffc9003d0f7328 R15: ffffffff81767e95
rcu_read_unlock include/linux/rcupdate.h:879 [inline]
class_rcu_destructor include/linux/rcupdate.h:1193 [inline]
unwind_next_frame+0x1a5d/0x23c0 arch/x86/kernel/unwind_orc.c:695
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
save_stack+0x122/0x230 mm/page_owner.c:165
__reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1433 [inline]
__free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
__slab_free+0x263/0x2b0 mm/slub.c:5573
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4538 [inline]
slab_alloc_node mm/slub.c:4866 [inline]
__kmalloc_cache_node_noprof+0x391/0x6b0 mm/slub.c:5388
kmalloc_node_noprof include/linux/slab.h:1077 [inline]
__get_vm_area_node+0x13f/0x300 mm/vmalloc.c:3221
__vmalloc_node_range_noprof+0x372/0x1730 mm/vmalloc.c:4024
__vmalloc_node_noprof mm/vmalloc.c:4124 [inline]
vzalloc_noprof+0xb2/0xe0 mm/vmalloc.c:4202
__do_replace+0xb3/0x990 net/ipv4/netfilter/ip_tables.c:1046
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0xb45/0xe00 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x26f/0x290 net/netfilter/nf_sockopt.c:101
do_sock_setsockopt+0x17c/0x1b0 net/socket.c:2322
__sys_setsockopt net/socket.c:2347 [inline]
__do_sys_setsockopt net/socket.c:2353 [inline]
__se_sys_setsockopt net/socket.c:2350 [inline]
__x64_sys_setsockopt+0x13d/0x1b0 net/socket.c:2350
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f78fef9e05a
RSP: 002b:00007ffcb4f0f2e8 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007ffcb4f0f370 RCX: 00007f78fef9e05a
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00000000000002d8 R09: 0000000000000000
R10: 00007f78ff1ea020 R11: 0000000000000202 R12: 00007f78ff1e9fc0
R13: 00007ffcb4f0f30c R14: 0000000000000000 R15: 00007f78ff1ec180
rcu: rcu_preempt kthread starved for 2391 jiffies! g72941 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:27656 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5298 [inline]
__schedule+0x15dd/0x52d0 kernel/sched/core.c:6911
__schedule_loop kernel/sched/core.c:6993 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7008
schedule_timeout+0x158/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x312/0x11d0 kernel/rcu/tree.c:2095
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x51e/0xb90 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: 1154 Comm: kworker/u8:9 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
RIP: 0010:rcu_rnp_online_cpus kernel/rcu/tree.c:3997 [inline]
RIP: 0010:rcu_rdp_cpu_online kernel/rcu/tree.c:4007 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online+0xbf/0x120 kernel/rcu/tree.c:4048
Code: 20 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 b4 f9 84 00 48 8b 1b 48 83 c3 70 48 89 d8 48 c1 e8 03 42 80 3c 30 00 <74> 08 48 89 df e8 97 f9 84 00 4c 85 3b 75 1a 48 c7 c7 80 4a 76 8e
RSP: 0018:ffffc90000a075c8 EFLAGS: 00000246
RAX: 1ffffffff1cec83e RBX: ffffffff8e7641f0 RCX: 0000000080000102
RDX: ffff888028a48000 RSI: ffffffff8c27d0e0 RDI: ffff8880b873bde8
RBP: 0000000000000001 R08: ffffc90000a07920 R09: ffffc90000a07930
R10: ffffc90000a07780 R11: fffff52000140ef2 R12: 0000000000000003
R13: ffff88805540b8c8 R14: dffffc0000000000 R15: 0000000000000002
FS: 0000000000000000(0000) GS:ffff888125557000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd483ca0d20 CR3: 0000000034918000 CR4: 00000000003526f0
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:113 [inline]
rcu_read_lock_held+0x1e/0x50 kernel/rcu/update.c:349
__in6_dev_get include/net/addrconf.h:348 [inline]
ip6_ignore_linkdown+0x66/0x140 include/net/addrconf.h:449
find_match+0x9c/0xb40 net/ipv6/route.c:780
__find_rr_leaf+0x248/0x760 net/ipv6/route.c:868
find_rr_leaf net/ipv6/route.c:889 [inline]
rt6_select net/ipv6/route.c:933 [inline]
fib6_table_lookup+0x3b4/0xa80 net/ipv6/route.c:2247
ip6_pol_route+0x228/0x13d0 net/ipv6/route.c:2283
pol_lookup_func include/net/ip6_fib.h:636 [inline]
__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline]
fib6_rule_action+0x9d7/0xc00 net/ipv6/fib6_rules.c:275
fib_rules_lookup+0x768/0xea0 net/core/fib_rules.c:339
fib6_rule_lookup+0x1a0/0x730 net/ipv6/fib6_rules.c:112
ip6_route_input_lookup net/ipv6/route.c:2352 [inline]
ip6_route_input+0x730/0xad0 net/ipv6/route.c:2655
ip6_rcv_finish+0x141/0x280 net/ipv6/ip6_input.c:77
ip_sabotage_in+0x1e1/0x270 net/bridge/br_netfilter_hooks.c:990
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:623
nf_hook include/linux/netfilter.h:273 [inline]
NF_HOOK+0x21f/0x3c0 include/linux/netfilter.h:316
__netif_receive_skb_one_core net/core/dev.c:6181 [inline]
__netif_receive_skb net/core/dev.c:6294 [inline]
netif_receive_skb_internal net/core/dev.c:6380 [inline]
netif_receive_skb+0x278/0xc50 net/core/dev.c:6439
NF_HOOK+0xa4/0x3a0 include/linux/netfilter.h:318
br_handle_frame_finish+0x14e2/0x1bb0 net/bridge/br_input.c:-1
br_nf_hook_thresh+0x3dd/0x4c0 net/bridge/br_netfilter_hooks.c:-1
br_nf_pre_routing_finish_ipv6+0xa3a/0xd70 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:318 [inline]
br_nf_pre_routing_ipv6+0x374/0x6f0 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
br_handle_frame+0x1277/0x1510 net/bridge/br_input.c:442
__netif_receive_skb_core+0x98f/0x31a0 net/core/dev.c:6068
__netif_receive_skb_one_core net/core/dev.c:6179 [inline]
__netif_receive_skb net/core/dev.c:6294 [inline]
process_backlog+0x76d/0x1950 net/core/dev.c:6645
__napi_poll+0xae/0x340 net/core/dev.c:7709
napi_poll net/core/dev.c:7772 [inline]
net_rx_action+0x627/0xf70 net/core/dev.c:7929
handle_softirqs+0x22a/0x870 kernel/softirq.c:622
do_softirq+0x76/0xd0 kernel/softirq.c:523
__local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
blake2s_compress+0xf9/0x1eb0 lib/crypto/x86/blake2s.h:42
blake2s_update+0x14b/0x450 lib/crypto/blake2s.c:119
hmac+0x2d3/0x3b0 drivers/net/wireguard/noise.c:332
kdf drivers/net/wireguard/noise.c:360 [inline]
message_ephemeral+0x233/0x310 drivers/net/wireguard/noise.c:493
wg_noise_handshake_create_initiation+0x257/0x830 drivers/net/wireguard/noise.c:545
wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:34 [inline]
wg_packet_handshake_send_worker+0x18d/0x350 drivers/net/wireguard/send.c:51
process_one_work kernel/workqueue.c:3276 [inline]
process_scheduled_works+0xb6e/0x18c0 kernel/workqueue.c:3359
worker_thread+0xa53/0xfc0 kernel/workqueue.c:3440
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 39687 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ea:8d:a8:32:6d:c3, 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:ea:8d:a8:32:6d:c3, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ea:8d:a8:32:6d:c3, 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:ea:8d:a8:32:6d:c3, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ea:8d:a8:32:6d:c3, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 45612 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ea:8d:a8:32:6d:c3, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ea:8d:a8:32:6d:c3, 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:ea:8d:a8:32:6d:c3, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ea:8d:a8:32:6d:c3, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ea:8d:a8:32:6d:c3, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)