bridge0: received packet on veth1_to_bridge with own address as source address (addr:6e:15:77:57:41:44, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: (detected by 0, t=10502 jiffies, g=26985, q=1008 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10105 (4294963486-4294953381), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10106 jiffies! g26985 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:28120 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: 7693 Comm: kworker/R-bond3 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: 0x0 (bond3)
RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20 arch/x86/include/asm/idtentry.h:674
Code: a6 b9 a7 0a e9 81 06 00 00 90 f3 0f 1e fa 0f 01 ca fc 6a ff e8 31 05 00 00 48 89 c4 48 89 e7 e8 b6 b8 a7 0a e9 61 06 00 00 90 0f 1e fa 0f 01 ca fc 6a ff e8 11 05 00 00 48 89 c4 48 89 e7 e8
RSP: 0018:ffffc90000a07e88 EFLAGS: 00000086
RAX: 0000000000000000 RBX: ffffc90000a07f08 RCX: 0000000080000102
RDX: ffffc90000a07f01 RSI: ffffffff8c291100 RDI: ffff8880310cbe00
RBP: 1ffff92000140fe3 R08: ffffc90000a07ef8 R09: 0000000000000000
R10: ffffc90000a07f58 R11: fffff52000140fed R12: 1ffff92000140fe2
R13: dffffc0000000000 R14: ffffc90000a07f18 R15: ffffc90000a07f40
FS: 0000000000000000(0000) GS:ffff88812537c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f48a73d4ff8 CR3: 000000003692a000 CR4: 00000000003526f0
Call Trace:
RIP: 0010:unwind_done arch/x86/include/asm/unwind.h:50 [inline]
RIP: 0010:__unwind_start+0x51d/0x660 arch/x86/kernel/unwind_orc.c:784
Code: 38 74 08 4c 89 ff e8 12 7a ba 00 48 8b 44 24 08 49 39 07 0f 87 b6 fb ff ff 48 89 df e8 cc d0 ff ff 48 8b 04 24 42 0f b6 04 28 <84> c0 75 11 83 3b 00 4c 89 f1 0f 85 5b ff ff ff e9 90 fb ff ff 89
RSP: 0018:ffffc90000a07eb0 EFLAGS: 00000286
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:340 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
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_noprof+0x2b8/0x650 mm/slub.c:4946
skb_clone+0x212/0x3a0 net/core/skbuff.c:2110
deliver_clone net/bridge/br_forward.c:125 [inline]
br_flood+0x616/0x8d0 net/bridge/br_forward.c:257
br_handle_frame_finish+0x1175/0x1990 net/bridge/br_input.c:229
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:native_irq_enable arch/x86/include/asm/irqflags.h:-1 [inline]
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/irqflags.h:119 [inline]
RIP: 0010:raw_spin_rq_unlock_irq kernel/sched/sched.h:1673 [inline]
RIP: 0010:__schedule+0x1da2/0x56c0 kernel/sched/core.c:7233
Code: 31 f6 e8 01 cb eb f5 4c 89 ff e8 a9 d7 ec f5 0f 1f 44 00 00 49 83 c7 48 4c 89 ff e8 78 c1 01 00 e8 13 59 25 f6 fb 4c 8b 24 24 3a fa ff ff 90 0f 0b 90 f7 c6 01 01 00 00 0f 85 2a e8 ff ff e9
RSP: 0018:ffffc90005b37ac0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 1ffff92000b66f7c RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8c291100 RDI: ffffffff8ba8c9dd
RBP: ffffc90005b37ca8 R08: ffffffff903117f7 R09: 1ffffffff20622fe
R10: dffffc0000000000 R11: fffffbfff20622ff R12: ffff8880310cbe00
R13: dffffc0000000000 R14: ffff8880310cbe00 R15: ffff8880b873afc8
__schedule_loop kernel/sched/core.c:7307 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7322
rescuer_thread+0xf45/0x10b0 kernel/workqueue.c:3670
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: 8301 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:6e:15:77:57:41:44, 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:6e:15:77:57:41:44, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:6e:15:77:57:41:44, 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:6e:15:77:57:41:44, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:6e:15:77:57:41:44, 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:6e:15:77:57:41:44, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:6e:15:77:57:41:44, vlan:0)
net_ratelimit: 9112 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:6e:15:77:57:41:44, 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:6e:15:77:57:41:44, 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:6e:15:77:57:41:44, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:6e:15:77:57:41:44, 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:6e:15:77:57:41:44, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:6e:15:77:57:41:44, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)