bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 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): P2641/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=283973, q=166 ncpus=2)
task:syz.1.8777 state:R running task stack:27816 pid:2641 ppid:2636 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5393 [inline]
__schedule+0x156f/0x4720 kernel/sched/core.c:6722
preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6889
preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6913
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
zap_pte_range mm/memory.c:1523 [inline]
zap_pmd_range mm/memory.c:1571 [inline]
zap_pud_range mm/memory.c:1600 [inline]
zap_p4d_range mm/memory.c:1621 [inline]
unmap_page_range+0x2577/0x32f0 mm/memory.c:1642
unmap_vmas+0x286/0x3f0 mm/memory.c:1732
exit_mmap+0x238/0xb90 mm/mmap.c:3310
__mmput+0x118/0x3a0 kernel/fork.c:1365
exit_mm+0x23f/0x340 kernel/exit.c:576
do_exit+0x909/0x2530 kernel/exit.c:877
__do_sys_exit kernel/exit.c:999 [inline]
__se_sys_exit kernel/exit.c:997 [inline]
__x64_sys_exit+0x40/0x40 kernel/exit.c:997
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa2f779f559
RSP: 002b:00007fa2f8720fd8 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 00007fa2f7a26090 RCX: 00007fa2f779f559
RDX: 00007fa2f87219c8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fa2f7836b50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa2f7a26128 R14: 00007fa2f7a26090 R15: 00007ffef14b1808
rcu: rcu_preempt kthread starved for 6324 jiffies! g283973 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:26888 pid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5393 [inline]
__schedule+0x156f/0x4720 kernel/sched/core.c:6722
schedule+0xbd/0x170 kernel/sched/core.c:6796
schedule_timeout+0x188/0x2d0 kernel/time/timer.c:2168
rcu_gp_fqs_loop+0x30d/0x15e0 kernel/rcu/tree.c:1667
rcu_gp_kthread+0x9e/0x400 kernel/rcu/tree.c:1866
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 2636 Comm: syz.1.8777 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:lock_release+0x594/0x8c0 kernel/locking/lockdep.c:5814
Code: 00 00 00 f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 2f 04 f8 75 70 f7 44 24 50 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 2f 00 00 00 00 43 c7 44 2f 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc900001efd40 EFLAGS: 00000206
RAX: 0000000000000001 RBX: d8332a6fa9f2d431 RCX: 985920846d76fc00
RDX: 0000000000000004 RSI: ffffffff8aeae2c0 RDI: ffffffff8b3c5260
RBP: ffffc900001efe50 R08: ffffffff8f8dda6f R09: 1ffffffff1f1bb4d
R10: dffffc0000000000 R11: fffffbfff1f1bb4e R12: ffff88803dfe6588
R13: dffffc0000000000 R14: ffff88803dfe64d8 R15: 1ffff9200003dfb4
FS: 00007fa2f87216c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555899424e8 CR3: 00000000598b1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000200000000280 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
rcu_lock_release include/linux/rcupdate.h:344 [inline]
rcu_read_unlock include/linux/rcupdate.h:819 [inline]
nf_hook include/linux/netfilter.h:273 [inline]
NF_HOOK+0x652/0x700 include/linux/netfilter.h:314
br_nf_forward_ip+0xc68/0x10c0 net/bridge/br_netfilter_hooks.c:758
nf_hook_entry_hookfn include/linux/netfilter.h:156 [inline]
nf_hook_slow+0xb9/0x210 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:271 [inline]
NF_HOOK+0x23e/0x3e0 include/linux/netfilter.h:314
__br_forward+0x433/0x610 net/bridge/br_forward.c:115
deliver_clone net/bridge/br_forward.c:131 [inline]
maybe_deliver+0xb5/0x150 net/bridge/br_forward.c:191
br_flood+0x314/0x670 net/bridge/br_forward.c:237
br_handle_frame_finish+0xf2d/0x15c0 net/bridge/br_input.c:215
br_nf_hook_thresh+0x3d1/0x4b0 net/bridge/br_netfilter_hooks.c:1188
br_nf_pre_routing_finish_ipv6+0x9e5/0xd20 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:316 [inline]
br_nf_pre_routing_ipv6+0x34d/0x6a0 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:156 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x12fa/0x15b0 net/bridge/br_input.c:433
__netif_receive_skb_core+0xf94/0x3ac0 net/core/dev.c:5604
__netif_receive_skb_one_core net/core/dev.c:5708 [inline]
__netif_receive_skb+0x74/0x290 net/core/dev.c:5824
process_backlog+0x380/0x710 net/core/dev.c:6152
__napi_poll+0xbb/0x460 net/core/dev.c:6714
napi_poll net/core/dev.c:6781 [inline]
net_rx_action+0x65f/0xcc0 net/core/dev.c:6917
handle_softirqs+0x27d/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:try_release_thread_stack_to_cache kernel/fork.c:210 [inline]
RIP: 0010:free_thread_stack kernel/fork.c:337 [inline]
RIP: 0010:release_task_stack kernel/fork.c:591 [inline]
RIP: 0010:put_task_stack+0xaa/0x200 kernel/fork.c:598
Code: 00 00 00 0f 85 26 01 00 00 4c 8d b3 08 18 00 00 4d 89 f5 49 c1 ed 03 43 80 7c 25 00 00 74 08 4c 89 f7 e8 69 62 90 00 49 8b 2e <31> c0 65 48 0f b1 2d fb 00 b2 7e 49 89 c7 31 ff 48 89 c6 e8 de 5d
RSP: 0018:ffffc9000c4c7048 EFLAGS: 00000246
RAX: ffffffff815084bd RBX: ffff88803dfe0000 RCX: 0000000000000002
RDX: ffff88803dfe5a00 RSI: 0000000000000080 RDI: 0000000000000080
RBP: ffff8880325d9a00 R08: ffff88803dfe1813 R09: 1ffff11007bfc302
R10: dffffc0000000000 R11: ffffed1007bfc303 R12: dffffc0000000000
R13: 1ffff11007bfc301 R14: ffff88803dfe1808 R15: ffffffff8ccb5620
finish_task_switch+0x440/0x8f0 kernel/sched/core.c:5300
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x1577/0x4720 kernel/sched/core.c:6722
preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6889
preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6913
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock_irqrestore+0x111/0x120 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
prepare_to_wait_event+0x43b/0x4c0 kernel/sched/wait.c:340
synchronize_rcu_expedited+0x6c7/0x880 kernel/rcu/tree_exp.h:1019
synchronize_rcu+0x142/0x3e0 kernel/rcu/tree.c:3627
bpf_dispatcher_update kernel/bpf/dispatcher.c:131 [inline]
bpf_dispatcher_change_prog+0xd61/0xf10 kernel/bpf/dispatcher.c:170
bpf_prog_test_run_xdp+0x74f/0x1140 net/bpf/test_run.c:1323
bpf_prog_test_run+0x31f/0x390 kernel/bpf/syscall.c:4143
__sys_bpf+0x49d/0x890 kernel/bpf/syscall.c:5515
__do_sys_bpf kernel/bpf/syscall.c:5601 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5599 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5599
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa2f779f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa2f8721028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fa2f7a26090 RCX: 00007fa2f779f559
RDX: 0000000000000048 RSI: 0000200000000bc0 RDI: 000000000000000a
RBP: 00007fa2f7836b50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa2f7a26128 R14: 00007fa2f7a26090 R15: 00007ffef14b1808
net_ratelimit: 2977 callbacks suppressed
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
net_ratelimit: 4956 callbacks suppressed
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)