bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P28107/1:b..l P5282/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=146125, q=817 ncpus=2)
task:dhcpcd state:R running task stack:25592 pid:5282 tgid:5282 ppid:1 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5504 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7228
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7552
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:101 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:238 [inline]
RIP: 0010:unwind_next_frame+0x4c3/0x2550 arch/x86/kernel/unwind_orc.c:510
Code: 01 4c 8b 6c 24 50 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24 10 49 8d 6e 38 0f 84 8a 16 00 00 e9 ee 01 00 00 49 89 d5 49 89 d7 <4c> 89 e0 4c 29 f8 48 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83
RSP: 0018:ffffc9000203f060 EFLAGS: 00000246
RAX: ffffffff905360fc RBX: ffffffff90536100 RCX: ffffffff90536104
RDX: ffffffff905360e4 RSI: ffffffff90d3b9c0 RDI: ffffffff8c2910c0
RBP: ffffffff82315cb8 R08: 0000000000000009 R09: 0000000000000000
R10: ffffc9000203f158 R11: ffffffff81b10630 R12: ffffffff90536104
R13: ffffffff90536100 R14: ffffc9000203f108 R15: ffffffff90536104
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:1397 [inline]
__free_frozen_pages+0xc0d/0xd20 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5672
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_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:4610 [inline]
slab_alloc_node mm/slub.c:4939 [inline]
kmem_cache_alloc_node_noprof+0x380/0x680 mm/slub.c:4991
__alloc_skb+0x1d7/0x7a0 net/core/skbuff.c:704
alloc_skb include/linux/skbuff.h:1386 [inline]
alloc_skb_with_frags+0xc6/0x760 net/core/skbuff.c:6769
sock_alloc_send_pskb+0x878/0x990 net/core/sock.c:3010
unix_dgram_sendmsg+0x4da/0x17b0 net/unix/af_unix.c:2136
sock_sendmsg_nosec net/socket.c:775 [inline]
__sock_sendmsg net/socket.c:790 [inline]
sock_write_iter+0x47a/0x4c0 net/socket.c:1241
do_iter_readv_writev+0x612/0x8c0 fs/read_write.c:-1
vfs_writev+0x343/0x990 fs/read_write.c:1058
do_writev+0x154/0x2e0 fs/read_write.c:1104
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: 0033:0x7f3644a33407
RSP: 002b:00007fff65b7d5e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f36449a9780 RCX: 00007f3644a33407
RDX: 0000000000000005 RSI: 00007fff65b7d640 RDI: 000000000000000a
RBP: 0000565164eddd60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000565164eddd60
R13: 000000000000012c R14: 00000000ffffffff R15: 0000000000000000
task:syz-executor state:R running task stack:22328 pid:28107 tgid:28107 ppid:28098 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5504 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7228
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7552
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:deref_stack_reg+0x1a2/0x220 arch/x86/kernel/unwind_orc.c:422
Code: 39 f0 0f 96 c0 20 c8 3c 01 75 30 4c 89 c7 49 89 f7 e8 12 07 00 00 49 89 c6 48 8b 5c 24 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 df e8 84 80 ba 00 4c 89 33 b0 01 eb 02 31 c0 48 83 c4
RSP: 0018:ffffc90007fe7258 EFLAGS: 00000246
RAX: 1ffff92000ffce71 RBX: ffffc90007fe7388 RCX: 0000000000000001
RDX: ffffc90007fe7388 RSI: dffffc0000000000 RDI: ffffc90007fe7df0
RBP: ffffc90007fe0000 R08: ffffc90007fe7df0 R09: 0000000000000000
R10: ffffc90007fe7398 R11: fffff52000ffce75 R12: 1ffff92000ffce6a
R13: 1ffff92000ffce6b R14: dffffc0000000000 R15: dffffc0000000000
unwind_next_frame+0x19bd/0x2550 arch/x86/kernel/unwind_orc.c:-1
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:1397 [inline]
__free_frozen_pages+0xc0d/0xd20 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5672
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_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:4610 [inline]
slab_alloc_node mm/slub.c:4939 [inline]
__kmalloc_cache_node_noprof+0x37b/0x690 mm/slub.c:5459
_kmalloc_node_noprof include/linux/slab.h:1170 [inline]
__get_vm_area_node+0x136/0x300 mm/vmalloc.c:3215
__vmalloc_node_range_noprof+0x358/0x1730 mm/vmalloc.c:4024
__vmalloc_node_noprof mm/vmalloc.c:4124 [inline]
vzalloc_noprof+0xb2/0xe0 mm/vmalloc.c:4202
__do_replace+0xb2/0x990 net/ipv4/netfilter/ip_tables.c:1044
do_replace net/ipv4/netfilter/ip_tables.c:1139 [inline]
do_ipt_set_ctl+0xb3c/0xe20 net/ipv4/netfilter/ip_tables.c:1634
nf_setsockopt+0x26f/0x290 net/netfilter/nf_sockopt.c:101
do_sock_setsockopt+0x17c/0x1b0 net/socket.c:2368
__sys_setsockopt net/socket.c:2393 [inline]
__do_sys_setsockopt net/socket.c:2399 [inline]
__se_sys_setsockopt net/socket.c:2396 [inline]
__x64_sys_setsockopt+0x13d/0x1b0 net/socket.c:2396
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: 0033:0x7f4594b9e69a
RSP: 002b:00007ffe19e83578 EFLAGS: 00000206 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007ffe19e83600 RCX: 00007f4594b9e69a
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00000000000002d8 R09: 0000000000000000
R10: 00007f4594deb020 R11: 0000000000000206 R12: 00007f4594deafc0
R13: 00007ffe19e8359c R14: 0000000000000000 R15: 00007f4594ded180
rcu: rcu_preempt kthread starved for 9030 jiffies! g146125 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:28408 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5504 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7228
__schedule_loop kernel/sched/core.c:7307 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7322
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: 3198 Comm: kworker/R-ipv6_ Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: 0x0 (ipv6_addrconf)
RIP: 0010:_raw_spin_trylock+0x0/0x80 kernel/locking/spinlock.c:141
Code: 31 c0 4c 89 f7 31 f6 48 89 da 5b 41 5e e9 88 2e 8f f9 cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 41 56 53 49 89 fe bb 01 00 00 00 bf 01 00 00 00 e8 67
RSP: 0018:ffffc90000a082c8 EFLAGS: 00000002
RAX: 0000000000000001 RBX: ffffffff8fdd4c60 RCX: 0000000080000101
RDX: 0000000000000000 RSI: ffffffff8c291100 RDI: ffffffff8fdd4c60
RBP: ffffffff8fdd4c00 R08: ffffffff903117f7 R09: 1ffffffff20622fe
R10: dffffc0000000000 R11: fffffbfff20622ff R12: 00000000000001f4
R13: 1ffffffff1fba994 R14: 0000000000000200 R15: 0000000000000297
FS: 0000000000000000(0000) GS:ffff88812537c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c365eff CR3: 000000007d190000 CR4: 00000000003526f0
Call Trace:
_raw_spin_trylock_irqsave include/linux/spinlock_api_smp.h:112 [inline]
___ratelimit+0x1e6/0x8e0 lib/ratelimit.c:60
br_fdb_update+0x426/0x6c0 net/bridge/br_fdb.c:986
br_handle_frame_finish+0x618/0x1990 net/bridge/br_input.c:144
br_nf_hook_thresh+0x3dd/0x4c0 net/bridge/br_netfilter_hooks.c:-1
br_nf_pre_routing_finish_ipv6+0x90c/0xc40 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:318 [inline]
br_nf_pre_routing_ipv6+0x382/0x6f0 net/bridge/br_netfilter_ipv6.c:183
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:bytes_is_nonzero mm/kasan/generic.c:98 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:115 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:140 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:172 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:191 [inline]
RIP: 0010:kasan_check_range+0x97/0x2c0 mm/kasan/generic.c:200
Code: 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 3d 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 <0f> 85 9e 01 00 00 49 ff c3 48 ff c3 75 ee e9 1d 01 00 00 44 89 dd
RSP: 0018:ffffc9000fd47c50 EFLAGS: 00000246
RAX: ffffffff818fde01 RBX: ffffffffffffffff RCX: ffffffff818fde7f
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888033178400
RBP: 0000000004000000 R08: ffff888033178407 R09: 1ffff1100662f080
R10: dffffc0000000000 R11: ffffed100662f080 R12: 0000000000000001
R13: 1ffff1100665f3e5 R14: ffffed100662f081 R15: 1ffff1100662f080
instrument_atomic_write include/linux/instrumented.h:97 [inline]
clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
kthread_set_per_cpu+0x10f/0x1a0 kernel/kthread.c:645
unbind_worker+0x9c/0x190 kernel/workqueue.c:2756
detach_worker kernel/workqueue.c:2768 [inline]
worker_detach_from_pool kernel/workqueue.c:2788 [inline]
rescuer_thread+0xc40/0x10b0 kernel/workqueue.c:3649
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
net_ratelimit: 20726 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
net_ratelimit: 31453 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:f6:96:e0:dc:1d:e9, vlan:1)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1)