bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10294/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=38769, q=334 ncpus=2)
task:syz.1.1191 state:R running task stack:27816 pid:10294 ppid:10286 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x15ae/0x4660 kernel/sched/core.c:6701
preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6868
preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6892
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:3302
__mmput+0x118/0x3a0 kernel/fork.c:1362
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: 0033:0x7fbe1119e0d9
RSP: 002b:0000200000000058 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007fbe1119e0d9
RDX: 00007fbe1119e0d9 RSI: 0000200000000080 RDI: 000000000000000b
RBP: 00007fbe11235024 R08: 00002000000006c0 R09: 0000000000000000
R10: 00002000000006c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe11426038 R14: 00007fbe11425fa0 R15: 00007ffce118ed48
rcu: rcu_preempt kthread starved for 2426 jiffies! g38769 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:27240 pid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x15ae/0x4660 kernel/sched/core.c:6701
schedule+0xbd/0x170 kernel/sched/core.c:6775
schedule_timeout+0x188/0x2d0 kernel/time/timer.c:2168
rcu_gp_fqs_loop+0x30d/0x1590 kernel/rcu/tree.c:1667
rcu_gp_kthread+0x9d/0x3b0 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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10285 Comm: syz.3.1190 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__lock_release kernel/locking/lockdep.c:5438 [inline]
RIP: 0010:lock_release+0x21b/0x8c0 kernel/locking/lockdep.c:5774
Code: c3 48 89 c3 4c 89 e7 48 8b 74 24 18 e8 be 55 26 09 44 89 7c 24 3c 44 89 fa 85 c0 0f 84 d7 01 00 00 4d 85 e4 0f 84 01 03 00 00 <4d> 8d 74 24 24 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 9d
RSP: 0018:ffffc90000006360 EFLAGS: 00000086
RAX: 0000000000000001 RBX: 0000000000000014 RCX: 0000000000000001
RDX: 0000000000000004 RSI: ffff8880b8e2b758 RDI: ffff888024c58b88
RBP: ffffc90000006470 R08: ffffffff8e8c7e2f R09: 1ffffffff1d18fc5
R10: dffffc0000000000 R11: fffffbfff1d18fc6 R12: ffff888024c58b88
R13: dffffc0000000000 R14: 0000000000000004 R15: 0000000000000004
FS: 00007f4e2292c6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe897e35a6a CR3: 0000000079238000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x71/0x120 kernel/locking/spinlock.c:194
__run_hrtimer kernel/time/hrtimer.c:1750 [inline]
__hrtimer_run_queues+0x426/0xc10 kernel/time/hrtimer.c:1818
hrtimer_interrupt+0x39d/0x980 kernel/time/hrtimer.c:1880
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1077 [inline]
__sysvec_apic_timer_interrupt+0xfb/0x3b0 arch/x86/kernel/apic/apic.c:1094
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0x51/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:lock_acquire+0x208/0x420 kernel/locking/lockdep.c:5758
Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3c 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 43 c7 44 3c 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90000006880 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: d5fcbb57cabbe400
RDX: 0000000000000000 RSI: ffffffff8acadd60 RDI: ffffffff8b1d32a0
RBP: ffffc90000006990 R08: dffffc0000000000 R09: 1ffffffff223dca0
R10: dffffc0000000000 R11: fffffbfff223dca1 R12: 1ffff92000000d1c
R13: ffffffff8d131da0 R14: 0000000000000246 R15: dffffc0000000000
rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
rcu_read_lock include/linux/rcupdate.h:786 [inline]
is_bpf_text_address+0x47/0x2a0 kernel/bpf/core.c:742
kernel_text_address+0xa0/0xd0 kernel/extable.c:125
__kernel_text_address+0xd/0x30 kernel/extable.c:79
unwind_get_return_address+0x5d/0xc0 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0x11d/0x190 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
____kasan_slab_free+0x126/0x1f0 mm/kasan/common.c:237
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1811 [inline]
slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837
slab_free mm/slub.c:3830 [inline]
kmem_cache_free+0xf8/0x290 mm/slub.c:3852
kfree_skb include/linux/skbuff.h:1264 [inline]
ip6_mc_input+0xa17/0xc10 net/ipv6/ip6_input.c:589
ip_sabotage_in+0x1e2/0x270 net/bridge/br_netfilter_hooks.c:1005
nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline]
nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:259 [inline]
NF_HOOK+0x21d/0x3b0 include/linux/netfilter.h:302
__netif_receive_skb_one_core net/core/dev.c:5659 [inline]
__netif_receive_skb+0xcc/0x290 net/core/dev.c:5773
netif_receive_skb_internal net/core/dev.c:5859 [inline]
netif_receive_skb+0x1bc/0x720 net/core/dev.c:5918
NF_HOOK+0x9e/0x3a0 include/linux/netfilter.h:304
br_handle_frame_finish+0xf51/0x15c0 net/bridge/br_input.c:221
br_nf_hook_thresh+0x3cd/0x4a0 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:304 [inline]
br_nf_pre_routing_ipv6+0x34d/0x6a0 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x1240/0x14d0 net/bridge/br_input.c:424
__netif_receive_skb_core+0xf94/0x3ab0 net/core/dev.c:5553
__netif_receive_skb_one_core net/core/dev.c:5657 [inline]
__netif_receive_skb+0x74/0x290 net/core/dev.c:5773
process_backlog+0x380/0x710 net/core/dev.c:6101
__napi_poll+0xbb/0x460 net/core/dev.c:6663
napi_poll net/core/dev.c:6730 [inline]
net_rx_action+0x65f/0xcc0 net/core/dev.c:6866
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:native_save_fl arch/x86/include/asm/irqflags.h:19 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:89 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:131 [inline]
RIP: 0010:preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7012
Code: 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 6f bf 01 00 00 00 e8 d1 3b c5 f6 e8 ec 36 f6 f6 fb bf 01 00 00 00 e8 31 b4 ff ff <43> c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44
RSP: 0018:ffffc900044dfda0 EFLAGS: 00000246
RAX: d5fcbb57cabbe400 RBX: ffff888024c58000 RCX: d5fcbb57cabbe400
RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: ffff888024c59600
RBP: ffffc900044dfe50 R08: ffffffff8e8c7e2f R09: 1ffffffff1d18fc5
R10: dffffc0000000000 R11: fffffbfff1d18fc6 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200089bfb4
irqentry_exit+0x67/0x70 kernel/entry/common.c:438
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:exit_to_user_mode_loop+0x40/0x110 kernel/entry/common.c:164
Code: fb eb 1d e8 82 48 1b 09 65 48 8b 05 4a 91 8f 7e 4c 8b 30 41 f7 c6 0e 30 02 00 0f 84 c4 00 00 00 e8 55 bc 19 00 fb 41 f6 c6 08 <74> 05 e8 f9 7f 23 09 41 f7 c6 00 10 00 00 74 08 48 89 df e8 38 ac
RSP: 0000:ffffc900044dff10 EFLAGS: 00000202
RAX: d5fcbb57cabbe400 RBX: ffffc900044dff58 RCX: d5fcbb57cabbe400
RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: ffffffff8b1d32a0
RBP: 0000000000000000 R08: ffffffff8e8c7e2f R09: 1ffffffff1d18fc5
R10: dffffc0000000000 R11: fffffbfff1d18fc6 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000000a R15: ffff888024c58000
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
irqentry_exit_to_user_mode+0x9/0x30 kernel/entry/common.c:315
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0033:0x7f4e2199e0d9
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:00007f4e2292c028 EFLAGS: 00000246
RAX: 0000000000000005 RBX: 00007f4e21c26090 RCX: 00007f4e2199e0d9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f4e21a35024 R08: 000000000000000a R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4e21c26128 R14: 00007f4e21c26090 R15: 00007fffd99f0468
net_ratelimit: 3529 callbacks suppressed
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
net_ratelimit: 11873 callbacks suppressed
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:ee:0e:d9:34:f5:25, vlan:0)