bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P15775/1:b..l.. P15771/1:b..l.. P15763/1:b..l..
rcu: (detected by 1, t=10507 jiffies, g=76121, q=4096 ncpus=2)
task:syz.0.2897 state:R running task stack:26856 pid:15763 tgid:15756 ppid:5634 task_flags:0x40054c flags:0x00080001
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7561
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:201 [inline]
_raw_spin_unlock+0x41/0x50 kernel/locking/spinlock.c:213
spin_unlock include/linux/spinlock.h:401 [inline]
zap_pte_range mm/memory.c:2058 [inline]
zap_pmd_range mm/memory.c:2114 [inline]
zap_pud_range mm/memory.c:2142 [inline]
zap_p4d_range mm/memory.c:2163 [inline]
__zap_vma_range+0x40e1/0x4f70 mm/memory.c:2203
unmap_vmas+0x38b/0x550 mm/memory.c:2272
exit_mmap+0x290/0xa40 mm/mmap.c:1315
__mmput+0x118/0x420 kernel/fork.c:1192
exit_mm+0x18e/0x240 kernel/exit.c:586
do_exit+0x6a8/0x2360 kernel/exit.c:967
do_group_exit+0x22d/0x2f0 kernel/exit.c:1123
get_signal+0x1216/0x12c0 kernel/signal.c:3112
arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f200279fb19
RSP: 002b:00007f20035a2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffed RBX: 00007f2002a26180 RCX: 00007f200279fb19
RDX: 0000200000000240 RSI: 0000000000008914 RDI: 0000000000000007
RBP: 00007f2002837b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2002a26218 R14: 00007f2002a26180 R15: 00007ffc39eef438
task:syz.4.2898 state:R running task stack:24888 pid:15771 tgid:15766 ppid:5638 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:55 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:409 [inline]
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:419 [inline]
RIP: 0010:unwind_next_frame+0xb2b/0x2550 arch/x86/kernel/unwind_orc.c:614
Code: 14 00 00 0f b6 72 01 83 e6 07 83 fe 04 0f 84 39 04 00 00 83 fe 03 0f 84 f1 01 00 00 83 fe 02 0f 85 a2 07 00 00 48 89 5c 24 48 <49> 8d 7e 08 48 89 fb 48 c1 eb 03 42 80 3c 23 00 74 09 e8 de 6e c7
RSP: 0018:ffffc9000d516940 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff92c7ae3b RCX: ffffffff9217830c
RDX: ffffffff92c7ae3a RSI: 0000000000000002 RDI: ffffffff8c8e8c20
RBP: 1ffffffff258f5c7 R08: ffffc9000d517380 R09: 0000000000000000
R10: ffffc9000d516a38 R11: ffffffff81b3a880 R12: dffffc0000000000
R13: ffffffff92c7ae36 R14: ffffc9000d5169e8 R15: 1ffff92001aa2d3d
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:183
__reset_page_owner+0x73/0x2a0 mm/page_owner.c:338
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1403 [inline]
__free_frozen_pages+0xc97/0xd90 mm/page_alloc.c:2954
__slab_free+0x269/0x2c0 mm/slub.c:5926
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:417
kasan_kmalloc include/linux/kasan.h:263 [inline]
__kmalloc_cache_noprof+0x31c/0x600 mm/slub.c:5680
_kmalloc_noprof include/linux/slab.h:991 [inline]
_kzalloc_noprof include/linux/slab.h:1312 [inline]
nf_flowtable_by_dev_insert net/netfilter/nf_flow_table_xdp.c:73 [inline]
nf_flow_offload_xdp_setup+0x364/0x670 net/netfilter/nf_flow_table_xdp.c:139
nf_flow_table_offload_setup+0x123/0x6b0 net/netfilter/nf_flow_table_offload.c:1280
nft_register_flowtable_ops net/netfilter/nf_tables_api.c:9071 [inline]
nft_register_flowtable_net_hooks+0x408/0x880 net/netfilter/nf_tables_api.c:9107
nf_tables_newflowtable+0x1cca/0x25e0 net/netfilter/nf_tables_api.c:9354
nfnetlink_rcv_batch net/netfilter/nfnetlink.c:524 [inline]
nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
nfnetlink_rcv+0x1288/0x28c0 net/netfilter/nfnetlink.c:665
netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
netlink_unicast+0x8ef/0xa80 net/netlink/af_netlink.c:1361
netlink_sendmsg+0x7f0/0xb20 net/netlink/af_netlink.c:1920
sock_sendmsg_nosec+0x14e/0x190 net/socket.c:800
__sock_sendmsg net/socket.c:818 [inline]
____sys_sendmsg+0x54e/0x850 net/socket.c:2715
___sys_sendmsg+0x2a5/0x360 net/socket.c:2769
__sys_sendmsg net/socket.c:2801 [inline]
__do_sys_sendmsg net/socket.c:2806 [inline]
__se_sys_sendmsg net/socket.c:2804 [inline]
__x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2804
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbeb379fb19
RSP: 002b:00007fbeb4723028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fbeb3a25fa0 RCX: 00007fbeb379fb19
RDX: 0000000000000000 RSI: 0000200000000380 RDI: 000000000000000c
RBP: 00007fbeb3837b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbeb3a26038 R14: 00007fbeb3a25fa0 R15: 00007ffd0e15f528
task:syz.3.2902 state:R running task stack:26024 pid:15775 tgid:15775 ppid:5644 task_flags:0x40044c flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7561
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:201 [inline]
_raw_spin_unlock+0x41/0x50 kernel/locking/spinlock.c:213
spin_unlock include/linux/spinlock.h:401 [inline]
zap_pte_range mm/memory.c:2058 [inline]
zap_pmd_range mm/memory.c:2114 [inline]
zap_pud_range mm/memory.c:2142 [inline]
zap_p4d_range mm/memory.c:2163 [inline]
__zap_vma_range+0x40e1/0x4f70 mm/memory.c:2203
unmap_vmas+0x38b/0x550 mm/memory.c:2272
exit_mmap+0x290/0xa40 mm/mmap.c:1315
__mmput+0x118/0x420 kernel/fork.c:1192
exit_mm+0x18e/0x240 kernel/exit.c:586
do_exit+0x6a8/0x2360 kernel/exit.c:967
do_group_exit+0x22d/0x2f0 kernel/exit.c:1123
get_signal+0x1216/0x12c0 kernel/signal.c:3112
arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
exit_to_user_mode_loop kernel/entry/common.c:101 [inline]
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline]
irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline]
irqentry_exit+0x348/0x9b0 kernel/entry/common.c:152
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7fec9d55ccc4
RSP: 002b:00007ffc1727fd30 EFLAGS: 00010246
RAX: 00007fec9b7d6000 RBX: 00007fec9b7f66c0 RCX: 00007fec9d59f917
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007fec9b7f66c0
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000021000 R11: 0000000000000206 R12: 00007ffc1727fe80
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 679 jiffies! g76121 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=0
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:27496 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
__schedule_loop kernel/sched/core.c:7459 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7474
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
kthread+0x38b/0x480 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8289 Comm: kworker/u8:13 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
Workqueue: wg-kex-wg2 wg_packet_handshake_send_worker
RIP: 0010:__lock_acquire+0x125/0x2de0 kernel/locking/lockdep.c:5184
Code: 39 cf 74 16 45 31 f6 48 89 df 31 d2 e8 04 f0 ff ff 48 85 c0 0f 84 b9 13 00 00 48 8b 4c 24 08 44 8b b1 a0 0b 00 00 49 83 fe 30 <0f> 93 c1 83 3d 01 3a 25 1a 00 74 02 31 c9 84 c9 0f 85 43 01 00 00
RSP: 0018:ffffc900000067c0 EFLAGS: 00000087
RAX: ffffffff9566cf08 RBX: ffffffff8ff5a320 RCX: ffff888030d9be80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9bcd81a0
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90000006af8 R11: fffff52000000d61 R12: ffffffff8ff5a320
R13: 0000000000000000 R14: 0000000000000007 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88812361f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc1fa448f23 CR3: 00000000621a6000 CR4: 00000000003526f0
Call Trace:
lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
__unwind_start+0x514/0x660 arch/x86/kernel/unwind_orc.c:787
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xe3/0x150 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:351 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:377
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4720 [inline]
slab_alloc_node mm/slub.c:5033 [inline]
kmem_cache_alloc_noprof+0x2b4/0x600 mm/slub.c:5047
skb_clone+0x212/0x3a0 net/core/skbuff.c:2110
dev_queue_xmit_nit+0x28d/0xac0 net/core/dev.c:2646
xmit_one net/core/dev.c:4064 [inline]
dev_hard_start_xmit+0x1c1/0x830 net/core/dev.c:4084
__dev_queue_xmit+0x14d1/0x3920 net/core/dev.c:5088
dev_queue_xmit include/linux/netdevice.h:3483 [inline]
br_dev_queue_push_xmit+0x370/0x4b0 net/bridge/br_forward.c:67
NF_HOOK+0x360/0x3f0 include/linux/netfilter.h:325
br_forward_finish+0xd3/0x130 net/bridge/br_forward.c:80
NF_HOOK+0x360/0x3f0 include/linux/netfilter.h:325
__br_forward+0x41e/0x5d0 net/bridge/br_forward.c:130
deliver_clone net/bridge/br_forward.c:146 [inline]
maybe_deliver+0x373/0x5b0 net/bridge/br_forward.c:212
br_flood+0x142/0x650 net/bridge/br_forward.c:345
br_handle_frame_finish+0x11fc/0x1ae0 net/bridge/br_input.c:231
nf_hook_bridge_pre net/bridge/br_input.c:315 [inline]
br_handle_frame+0x92e/0x1600 net/bridge/br_input.c:453
__netif_receive_skb_core+0x989/0x30f0 net/core/dev.c:6314
__netif_receive_skb_one_core net/core/dev.c:6433 [inline]
__netif_receive_skb net/core/dev.c:6548 [inline]
process_backlog+0x727/0x18b0 net/core/dev.c:6899
__napi_poll+0xaa/0x330 net/core/dev.c:7968
napi_poll net/core/dev.c:8031 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8188
handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
do_softirq+0x77/0xd0 kernel/softirq.c:569
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
blake2s_compress+0xfa/0x1c00 lib/crypto/x86/blake2s.h:42
blake2s_final+0x10f/0x270 lib/crypto/blake2s.c:142
hmac+0x2dc/0x3b0 drivers/net/wireguard/noise.c:333
kdf+0x184/0x290 drivers/net/wireguard/noise.c:375
mix_precomputed_dh drivers/net/wireguard/noise.c:426 [inline]
wg_noise_handshake_create_initiation+0x460/0x810 drivers/net/wireguard/noise.c:560
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:3495 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
kthread+0x38b/0x480 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
net_ratelimit: 12112 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)