bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P21914/3:b..l P21919/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=98281, q=1704 ncpus=2)
task:syz.2.4798      state:R  running task     stack:28136 pid:21919 tgid:21914 ppid:15584  task_flags:0x400040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline]
 irqentry_exit+0x14f/0x760 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:deref_stack_regs arch/x86/kernel/unwind_orc.c:438 [inline]
RIP: 0010:unwind_next_frame+0x1118/0x2550 arch/x86/kernel/unwind_orc.c:625
Code: 4d 89 fc 74 08 4c 89 ef e8 45 00 ba 00 49 89 5d 00 49 8d bc 24 98 00 00 00 e8 94 20 00 00 48 89 c3 48 8b 44 24 58 80 3c 28 00 <4c> 8b 7c 24 78 74 08 4c 89 ff e8 19 00 ba 00 49 89 1f 48 8b 44 24
RSP: 0018:ffffc900046c7818 EFLAGS: 00000246
RAX: 1ffff920008d8f24 RBX: 00007f8cc4fcbf98 RCX: 1ffff920008d8f01
RDX: ffffffff90bc0cfe RSI: 0000000000000003 RDI: ffffc900046c7fe0
RBP: dffffc0000000000 R08: 0000000000000022 R09: ffffffff8e95cda0
R10: ffffc900046c7938 R11: ffffffff81b0efc0 R12: ffffc900046c7f48
R13: ffffc900046c7930 R14: ffffc900046c78e8 R15: ffffc900046c7f48
 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:1402 [inline]
 __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943
 __slab_free+0x274/0x2c0 mm/slub.c:5612
 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:4569 [inline]
 slab_alloc_node mm/slub.c:4898 [inline]
 kmem_cache_alloc_lru_noprof+0x2b8/0x640 mm/slub.c:4917
 sock_alloc_inode+0x2c/0x190 net/socket.c:328
 alloc_inode+0x6a/0x1b0 fs/inode.c:345
 new_inode_pseudo include/linux/fs.h:3015 [inline]
 sock_alloc net/socket.c:697 [inline]
 __sock_create+0x12d/0x9d0 net/socket.c:1628
 sock_create net/socket.c:1722 [inline]
 __sys_socket_create net/socket.c:1759 [inline]
 __sys_socket+0xd6/0x1b0 net/socket.c:1806
 __do_sys_socket net/socket.c:1820 [inline]
 __se_sys_socket net/socket.c:1818 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1818
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8cc6d9e6c7
RSP: 002b:00007f8cc4fcbf98 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f8cc7016090 RCX: 00007f8cc6d9e6c7
RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000002600 R11: 0000000000000286 R12: 0000000000000000
R13: 00007f8cc7016128 R14: 00007f8cc7016090 R15: 00007ffda727ebe8
 </TASK>
task:syz.2.4798      state:R  running task     stack:24264 pid:21914 tgid:21914 ppid:15584  task_flags:0x400040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline]
 irqentry_exit+0x14f/0x760 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:preempt_schedule_thunk+0x0/0x30 arch/x86/entry/thunk.S:12
Code: 29 92 00 48 c7 c0 20 5a c0 8b e9 8b 1d 78 0a cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 aa 5c 76 0a
RSP: 0000:ffffc90004c2f928 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88802932ec60 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: ffffc90004c2fb30 R08: ffff88802932ec63 R09: 1ffff11005265d8c
R10: dffffc0000000000 R11: ffffed1005265d8d R12: 0000000000000100
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 __raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:190
 spin_unlock include/linux/spinlock.h:390 [inline]
 filemap_map_pages+0x1a2a/0x2100 mm/filemap.c:3942
 do_fault_around mm/memory.c:5851 [inline]
 do_read_fault mm/memory.c:5884 [inline]
 do_fault mm/memory.c:6027 [inline]
 do_pte_missing+0x1f38/0x33f0 mm/memory.c:4550
 handle_pte_fault mm/memory.c:6411 [inline]
 __handle_mm_fault mm/memory.c:6549 [inline]
 handle_mm_fault+0x1bd9/0x3170 mm/memory.c:6718
 do_user_addr_fault+0xa73/0x1340 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f8cc6c72780
RSP: 002b:00007ffda727ed08 EFLAGS: 00010246
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000000000000001c RDI: 0000200000000190
RBP: 00007ffda727ee30 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000001c R11: 0000000000000000 R12: 0000000000000002
R13: 00007f8cc701618c R14: 000000000007e232 R15: 00007ffda727ee50
 </TASK>
rcu: rcu_preempt kthread starved for 5884 jiffies! g98281 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:27968 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7283
 schedule_timeout+0x158/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x312/0x11d0 kernel/rcu/tree.c:2095
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
 kthread+0x389/0x470 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 1019 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:match_held_lock+0x3/0xb0 kernel/locking/lockdep.c:5305
Code: b9 3a 90 31 db 48 89 d8 5b 41 5e 41 5f c3 cc cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 56 53 <bb> 01 00 00 00 48 39 77 10 74 6a 81 7f 20 00 00 20 00 72 5f 48 8b
RSP: 0000:ffffc90000a08368 EFLAGS: 00000097
RAX: 0000000000000001 RBX: ffff8880277b4910 RCX: 0000000080010101
RDX: ffff8880277b3d80 RSI: ffff8880b8728298 RDI: ffff8880277b4910
RBP: 00000000ffffffff R08: ffffffff9a714b83 R09: 1ffffffff34e2970
R10: dffffc0000000000 R11: fffffbfff34e2971 R12: 0000000000000046
R13: ffff8880277b3d80 R14: ffff8880b8728298 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88812538a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8cc6c72780 CR3: 0000000074eee000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __lock_is_held kernel/locking/lockdep.c:5601 [inline]
 lock_is_held_type+0x89/0x150 kernel/locking/lockdep.c:5940
 lock_is_held include/linux/lockdep.h:249 [inline]
 __remove_hrtimer+0x82/0x3e0 kernel/time/hrtimer.c:1145
 __run_hrtimer kernel/time/hrtimer.c:1910 [inline]
 __hrtimer_run_queues+0x299/0xa20 kernel/time/hrtimer.c:1994
 hrtimer_interrupt+0x44b/0x950 kernel/time/hrtimer.c:2113
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1067
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1061
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:skb_ext_add+0x595/0x8f0 net/core/skbuff.c:7164
Code: eb 05 e8 6e 10 4d f8 48 8b 7c 24 20 e8 24 07 00 00 4c 8b 6c 24 18 4d 85 ed 0f 85 4e fb ff ff e8 51 10 4d f8 31 c0 48 83 c4 48 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 7c 04 33 02 cc 89 d1 80 e1 07 38
RSP: 0000:ffffc90000a086e8 EFLAGS: 00000286
RAX: ffff888052497e10 RBX: ffff888052497e04 RCX: ffff8880277b3d80
RDX: ffff888052497e00 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 0000000000000000 R08: ffff888052497e03 R09: 1ffff1100a492fc0
R10: dffffc0000000000 R11: ffffed100a492fc1 R12: ffff888052497e00
R13: ffff888052497e00 R14: 0000000000000006 R15: dffffc0000000000
 nf_bridge_alloc include/net/netfilter/br_netfilter.h:12 [inline]
 br_nf_pre_routing_ipv6+0x12e/0x6f0 net/bridge/br_netfilter_ipv6.c:171
 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
 nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
 br_handle_frame+0x1277/0x1510 net/bridge/br_input.c:442
 __netif_receive_skb_core+0x98f/0x3170 net/core/dev.c:6089
 __netif_receive_skb_one_core net/core/dev.c:6200 [inline]
 __netif_receive_skb net/core/dev.c:6315 [inline]
 process_backlog+0x76d/0x1950 net/core/dev.c:6666
 __napi_poll+0xae/0x340 net/core/dev.c:7733
 napi_poll net/core/dev.c:7796 [inline]
 net_rx_action+0x627/0xf70 net/core/dev.c:7953
 handle_softirqs+0x22a/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:1061 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:110 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:238 [inline]
RIP: 0010:unwind_next_frame+0x2b4/0x2550 arch/x86/kernel/unwind_orc.c:510
Code: 00 00 fc ff df 0f 84 17 04 00 00 4a 8d 14 ad 04 41 43 90 45 29 e8 4a 8d 1c 82 48 83 c3 fc 49 89 d5 48 39 da 0f 86 1c 02 00 00 <49> 29 d5 49 c1 fd 02 4a 8d 04 6d 00 00 00 00 4c 01 e8 48 8d 14 46
RSP: 0000:ffffc900051a7418 EFLAGS: 00000202
RAX: ffffffff90493fcc RBX: ffffffff90493fd0 RCX: ffffffff90493fd4
RDX: ffffffff90493fb0 RSI: ffffffff90c50aee RDI: ffffffff8c28af00
RBP: ffffffff90493fd4 R08: 0000000000000009 R09: ffffffff8e95cda0
R10: ffffc900051a7548 R11: fffff52000a34eb5 R12: ffffffff81771cd6
R13: ffffffff90493fd0 R14: ffffc900051a7548 R15: ffffffff90493fd0
 __unwind_start+0x5b8/0x760 arch/x86/kernel/unwind_orc.c:787
 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
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2689 [inline]
 slab_free mm/slub.c:6250 [inline]
 kfree+0x1c5/0x640 mm/slub.c:6565
 skb_kfree_head net/core/skbuff.c:1075 [inline]
 skb_free_head net/core/skbuff.c:1087 [inline]
 skb_release_data+0x828/0xa60 net/core/skbuff.c:1114
 skb_release_all net/core/skbuff.c:1189 [inline]
 __kfree_skb+0x5d/0x210 net/core/skbuff.c:1203
 ieee80211_iface_work+0xbdb/0x1380 net/mac80211/iface.c:1851
 cfg80211_wiphy_work+0x2cf/0x460 net/wireless/core.c:513
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3478
 kthread+0x389/0x470 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: 16364 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:8a:77:cd:c8:4b:8c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:8a:77:cd:c8:4b:8c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
net_ratelimit: 22167 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:8a:77:cd:c8:4b:8c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:8a:77:cd:c8:4b:8c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)