bridge0: received packet on bridge_slave_0 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): P23791/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=100949, q=1264 ncpus=2)
task:syz.8.4290      state:R  running task     stack:24992 pid:23791 tgid:23769 ppid:20009  flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5853
Code: 2b 00 74 08 4c 89 f7 e8 6a 9a 88 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900103574e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200206aea8 RCX: ffff88802c7328d8
RDX: dffffc0000000000 RSI: ffffffff8c0aa960 RDI: ffffffff8c5ec420
RBP: ffffc90010357628 R08: ffffffff9426e887 R09: 1ffffffff284dd10
R10: dffffc0000000000 R11: fffffbfff284dd11 R12: 1ffff9200206aea4
R13: dffffc0000000000 R14: ffffc90010357540 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 count_memcg_events_mm include/linux/memcontrol.h:994 [inline]
 count_memcg_event_mm+0xb1/0x420 include/linux/memcontrol.h:1004
 mm_account_fault mm/memory.c:5978 [inline]
 handle_mm_fault+0x1624/0x1ad0 mm/memory.c:6138
 faultin_page mm/gup.c:1196 [inline]
 __get_user_pages+0x1c82/0x49e0 mm/gup.c:1494
 populate_vma_page_range+0x264/0x330 mm/gup.c:1932
 __mm_populate+0x27a/0x460 mm/gup.c:2035
 mm_populate include/linux/mm.h:3386 [inline]
 vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:585
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f57dcd85d19
RSP: 002b:00007f57da7f4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f57dcf76240 RCX: 00007f57dcd85d19
RDX: 000000000200000c RSI: 0000000000c00000 RDI: 0000000020001000
RBP: 00007f57dce01a20 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000003032 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f57dcf76240 R15: 00007ffe123d09d8
 </TASK>
rcu: rcu_preempt kthread starved for 10536 jiffies! g100949 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:26072 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:deref_stack_reg+0x1ac/0x210 arch/x86/kernel/unwind_orc.c:408
Code: 24 18 48 89 e8 48 c1 e8 03 80 3c 18 00 74 08 48 89 ef e8 17 76 b7 00 4c 89 75 00 b0 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 cc cc cc cc 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c db fe ff
RSP: 0018:ffffc90000006e20 EFLAGS: 00000282
RAX: 1ffff92000000d01 RBX: ffffffff91223cd2 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffc90000000000 RDI: ffffc90000007b48
RBP: ffffc90000006f40 R08: ffffc90000007b48 R09: 0000000000000000
R10: ffffc90000006f50 R11: fffff52000000dec R12: ffffc90000008000
R13: ffffc90000006f00 R14: ffffffff898f59ab R15: ffffc90000006f50
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c416c6e CR3: 00000000275c0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 unwind_next_frame+0x1799/0x22d0
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175
 __skb_ext_alloc net/core/skbuff.c:6924 [inline]
 skb_ext_add+0x14d/0x910 net/core/skbuff.c:7027
 nf_bridge_alloc include/net/netfilter/br_netfilter.h:12 [inline]
 br_nf_pre_routing_ipv6+0x131/0x770 net/bridge/br_netfilter_ipv6.c:172
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
 br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424
 __netif_receive_skb_core+0x14eb/0x4690 net/core/dev.c:5566
 __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
 __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
 process_backlog+0x662/0x15b0 net/core/dev.c:6117
 __napi_poll+0xcb/0x490 net/core/dev.c:6883
 napi_poll net/core/dev.c:6952 [inline]
 net_rx_action+0x89b/0x1240 net/core/dev.c:7074
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 80 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 95 e6 a7 00 f3 0f 1e fa fb f4 <fa> c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffffff8e607ca8 EFLAGS: 00000246
RAX: ffffffff8e6965c0 RBX: ffff888144a88064 RCX: 0000000001bdd251
RDX: 0000000000000001 RSI: ffff888144a88000 RDI: ffff888144a88064
RBP: 000000000003a878 R08: ffff8880b8637cdb R09: 1ffff110170c6f9b
R10: dffffc0000000000 R11: ffffffff8bc0ac00 R12: ffff88801ebf4800
R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f10e0e0
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:699
 cpuidle_enter_state+0x109/0x470 drivers/cpuidle/cpuidle.c:268
 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:389
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:230 [inline]
 do_idle+0x372/0x5c0 kernel/sched/idle.c:325
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:423
 rest_init+0x2dc/0x300 init/main.c:747
 start_kernel+0x47f/0x500 init/main.c:1102
 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
 x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488
 common_startup_64+0x13e/0x147
 </TASK>
net_ratelimit: 22357 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:4a:56:c2:87:80:43, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:4a:56:c2:87:80:43, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:4a:56:c2:87:80:43, vlan:0)