bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P29014/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=114737, q=1194 ncpus=2)
task:modprobe        state:R  running task     stack:23736 pid:29014 tgid:29014 ppid:17930  task_flags:0x400000 flags:0x00080000
Call Trace:
 <TASK>
 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:unwind_next_frame+0x11c/0x2550 arch/x86/kernel/unwind_orc.c:498
Code: 00 48 89 6c 24 38 48 89 5c 24 40 49 8d 5e 50 48 89 d8 48 c1 e8 03 48 89 44 24 28 42 80 3c 20 00 74 08 48 89 df e8 14 a8 ba 00 <48> 8b 1b 48 85 db 74 24 48 81 c3 88 00 00 00 48 89 d8 48 c1 e8 03
RSP: 0018:ffffc90005226d00 EFLAGS: 00000246
RAX: 1ffff92000a44dbf RBX: ffffc90005226df8 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8c291100 RDI: ffffffff8c2910c0
RBP: 1ffff92000a44dbc R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90005226df8 R11: ffffffff81b10630 R12: dffffc0000000000
R13: ffffffff8176a21f R14: ffffc90005226da8 R15: 1ffff92000a44db5
 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_noprof+0x2b8/0x650 mm/slub.c:4946
 vm_area_dup+0x28/0x670 mm/vma_init.c:123
 __split_vma+0x1dc/0xa50 mm/vma.c:516
 vms_gather_munmap_vmas+0x4e3/0x1370 mm/vma.c:1448
 __mmap_setup mm/vma.c:2439 [inline]
 __mmap_region mm/vma.c:2753 [inline]
 mmap_region+0x909/0x2340 mm/vma.c:2857
 do_mmap+0xc3b/0x10c0 mm/mmap.c:560
 vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581
 ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:606
 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: 0033:0x7f2d038f7242
RSP: 002b:00007ffe347e4be8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f2d03613000 RCX: 00007f2d038f7242
RDX: 0000000000000005 RSI: 0000000000002000 RDI: 00007f2d03613000
RBP: 0000000000000812 R08: 0000000000000000 R09: 0000000000002000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007ffe347e4c38
R13: 00007f2d038cc050 R14: 00007ffe347e5020 R15: 00000fffc68fc980
 </TASK>
rcu: rcu_preempt kthread starved for 7029 jiffies! g114737 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:28120 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 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
 </TASK>
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: 77 Comm: kworker/u8:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:104 [inline]
RIP: 0010:__raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock+0x28/0x50 kernel/locking/spinlock.c:190
Code: 90 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 aa 65 f7 f5 48 89 df e8 02 db f7 f5 bf 01 00 00 00 e8 68 f2 e8 f5 <65> 8b 05 b1 b4 8f 07 85 c0 74 07 5b e9 17 49 00 00 cc e8 b1 e3 88
RSP: 0018:ffffc900000067e0 EFLAGS: 00000293
RAX: 0000000080000302 RBX: ffff88805faf62c8 RCX: 0000000000000300
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: ffff88805faf62c8 R08: ffff88805faf62cb R09: 1ffff1100bf5ec59
R10: dffffc0000000000 R11: ffffed100bf5ec5a R12: ffff88815fb15500
R13: ffffffff86882156 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88812527c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000032344000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 spin_unlock include/linux/spinlock.h:390 [inline]
 ptr_ring_produce include/linux/ptr_ring.h:146 [inline]
 veth_xdp_rx drivers/net/veth.c:314 [inline]
 veth_forward_skb drivers/net/veth.c:324 [inline]
 veth_xmit+0x67b/0xe60 drivers/net/veth.c:379
 __netdev_start_xmit include/linux/netdevice.h:5387 [inline]
 netdev_start_xmit include/linux/netdevice.h:5396 [inline]
 xmit_one net/core/dev.c:3889 [inline]
 dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3905
 __dev_queue_xmit+0x1435/0x37f0 net/core/dev.c:4872
 dev_queue_xmit include/linux/netdevice.h:3436 [inline]
 br_dev_queue_push_xmit+0x370/0x4b0 net/bridge/br_forward.c:53
 NF_HOOK+0x64e/0x6e0 include/linux/netfilter.h:318
 br_nf_post_routing+0xa53/0xee0 net/bridge/br_netfilter_hooks.c:964
 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
 nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619
 nf_hook include/linux/netfilter.h:273 [inline]
 NF_HOOK+0x23e/0x3f0 include/linux/netfilter.h:316
 br_forward_finish+0xd3/0x130 net/bridge/br_forward.c:66
 br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:1165 [inline]
 br_nf_forward_finish+0xa76/0xea0 net/bridge/br_netfilter_hooks.c:667
 NF_HOOK+0x64e/0x6e0 include/linux/netfilter.h:318
 br_nf_forward_ip+0x7eb/0xa30 net/bridge/br_netfilter_hooks.c:721
 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
 nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619
 nf_hook include/linux/netfilter.h:273 [inline]
 NF_HOOK+0x23e/0x3f0 include/linux/netfilter.h:316
 __br_forward+0x397/0x540 net/bridge/br_forward.c:115
 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+0x76/0xd0 kernel/softirq.c:523
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2395
 cfg80211_inform_bss_data+0x258/0x3c40 net/wireless/scan.c:3238
 cfg80211_inform_bss_frame_data+0x3c7/0x730 net/wireless/scan.c:3329
 ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
 ieee80211_rx_bss_info net/mac80211/ibss.c:1064 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1545 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x1c8b/0x2be0 net/mac80211/ibss.c:1572
 ieee80211_iface_process_skb net/mac80211/iface.c:1763 [inline]
 ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1817
 cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:538
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3397
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3478
 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
 </TASK>
net_ratelimit: 22253 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:0a:75:42:56:ed:f9, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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:0a:75:42:56:ed:f9, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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:0a:75:42:56:ed:f9, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 37582 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:0a:75:42:56:ed:f9, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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:0a:75:42:56:ed:f9, 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 bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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:0a:75:42:56:ed:f9, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)