bridge0: received packet on veth0_to_bridge 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): P14833/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=59545, q=489 ncpus=2)
task:syz.1.2733      state:R  running task     stack:26472 pid:14833 ppid:13892  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x15ae/0x4660 kernel/sched/core.c:6701
 preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7011
 irqentry_exit+0x67/0x70 kernel/entry/common.c:441
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:lock_acquire+0x208/0x420 kernel/locking/lockdep.c:5794
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:ffffc90005167440 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1db5769ae65c2f00
RDX: 0000000000000000 RSI: ffffffff8acae160 RDI: ffffffff8b1d5160
RBP: ffffc90005167560 R08: dffffc0000000000 R09: 1ffffffff23fe2a0
R10: dffffc0000000000 R11: fffffbfff23fe2a1 R12: 1ffff92000a2ce94
R13: ffffffff8df320e0 R14: 0000000000000246 R15: dffffc0000000000
 rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
 rcu_read_lock include/linux/rcupdate.h:786 [inline]
 page_ext_get+0x3e/0x2b0 mm/page_ext.c:508
 __reset_page_owner+0x2e/0x190 mm/page_owner.c:145
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1182 [inline]
 free_unref_page_prepare+0x7d7/0x8f0 mm/page_alloc.c:2366
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2459
 __slab_free+0x35a/0x400 mm/slub.c:3736
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x75/0xd0 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:306
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook+0x6a/0x4d0 mm/slab.h:770
 slab_alloc_node mm/slub.c:3495 [inline]
 __kmem_cache_alloc_node+0x194/0x250 mm/slub.c:3534
 kmalloc_node_trace+0x26/0xe0 mm/slab_common.c:1111
 kmalloc_node include/linux/slab.h:616 [inline]
 kzalloc_node include/linux/slab.h:732 [inline]
 __get_vm_area_node+0x125/0x370 mm/vmalloc.c:2644
 __vmalloc_node_range+0x36f/0x1320 mm/vmalloc.c:3330
 __vmalloc_node mm/vmalloc.c:3435 [inline]
 __vmalloc+0x7a/0x90 mm/vmalloc.c:3449
 bpf_prog_alloc_no_stats+0x46/0x430 kernel/bpf/core.c:99
 bpf_prog_alloc+0x3d/0x1a0 kernel/bpf/core.c:137
 bpf_prog_load+0x6b2/0x1610 kernel/bpf/syscall.c:2684
 __sys_bpf+0x5ba/0x890 kernel/bpf/syscall.c:5494
 __do_sys_bpf kernel/bpf/syscall.c:5598 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5596 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5596
 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: 0033:0x7fa2e8d9e559
RSP: 002b:00007fa2e9b96028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fa2e9026090 RCX: 00007fa2e8d9e559
RDX: 0000000000000094 RSI: 0000200000000300 RDI: 0000000000000005
RBP: 00007fa2e8e35ab8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa2e9026128 R14: 00007fa2e9026090 R15: 00007ffc728bc4f8
 </TASK>
rcu: rcu_preempt kthread starved for 2198 jiffies! g59545 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:27112 pid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 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
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 14835 Comm: syz.3.2736 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:migrate_enable+0x2ac/0x3c0 kernel/sched/core.c:2452
Code: f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 1a 2a 83 00 48 c7 c3 50 cf 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 20 <84> c0 0f 85 eb 00 00 00 ff 0b bf 01 00 00 00 e8 a0 b2 ff ff 65 8b
RSP: 0018:ffffc900001ef740 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffff8880b8d3cf50 RCX: 53c210b97dfbee00
RDX: ffff88802cbcc038 RSI: ffffffff8b1d5140 RDI: ffffffff8b1d5100
RBP: ffffc900001ef830 R08: ffffc900001ef8cf R09: 0000000000000000
R10: ffffc900001ef8c0 R11: fffff5200003df1a R12: dffffc0000000000
R13: 1ffff9200003def0 R14: ffffffff8caa9a38 R15: dffffc0000000000
FS:  00007f76b12b56c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f022d2bcb26 CR3: 000000001d727000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000200000000440 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 bpf_prog_run_array include/linux/bpf.h:2000 [inline]
 trace_call_bpf+0x4c2/0x6c0 kernel/trace/bpf_trace.c:143
 perf_trace_run_bpf_submit+0x7a/0x1c0 kernel/events/core.c:10295
 perf_trace_lock_acquire+0x342/0x400 include/trace/events/lock.h:24
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0x3ef/0x420 kernel/locking/lockdep.c:5761
 rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
 rcu_read_lock include/linux/rcupdate.h:786 [inline]
 nf_hook include/linux/netfilter.h:228 [inline]
 NF_HOOK+0xc4/0x3e0 include/linux/netfilter.h:302
 br_forward_finish+0xd3/0x130 net/bridge/br_forward.c:66
 br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:1188 [inline]
 br_nf_forward_finish+0xa69/0xe90 net/bridge/br_netfilter_hooks.c:688
 NF_HOOK+0x66e/0x700 include/linux/netfilter.h:304
 br_nf_forward_ip+0xc78/0x10d0 net/bridge/br_netfilter_hooks.c:758
 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+0x23e/0x3e0 include/linux/netfilter.h:302
 __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+0x317/0x670 net/bridge/br_forward.c:237
 br_handle_frame_finish+0xf2d/0x15c0 net/bridge/br_input.c:215
 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+0xf94/0x3ac0 net/core/dev.c:5565
 __netif_receive_skb_one_core net/core/dev.c:5669 [inline]
 __netif_receive_skb+0x74/0x290 net/core/dev.c:5785
 process_backlog+0x380/0x710 net/core/dev.c:6113
 __napi_poll+0xbb/0x460 net/core/dev.c:6675
 napi_poll net/core/dev.c:6742 [inline]
 net_rx_action+0x65f/0xcc0 net/core/dev.c:6878
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x10/0xb0 kernel/rcu/tree.c:700
Code: 89 f3 8d 4c 89 f6 e8 6f b9 f6 02 e9 44 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 57 41 56 53 65 ff 05 98 61 92 7e <e8> fb c9 21 09 89 c3 83 f8 08 73 60 49 bf 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900051875a0 EFLAGS: 00000282
RAX: ffffffff81d2bfb6 RBX: ffffea00017d7a80 RCX: 0000000000000002
RDX: ffff88802cbcbc00 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90005187690 R08: dffffc0000000000 R09: 1ffffffff23fe2a0
R10: dffffc0000000000 R11: fffffbfff23fe2a1 R12: dffffc0000000000
R13: 1ffff92000a30ebc R14: 0000000000000001 R15: ffff888030dc93a0
 rcu_read_lock include/linux/rcupdate.h:787 [inline]
 mod_memcg_page_state+0xd0/0x940 include/linux/memcontrol.h:997
 vfree+0x196/0x340 mm/vmalloc.c:2894
 __vmalloc_area_node mm/vmalloc.c:3253 [inline]
 __vmalloc_node_range+0x107f/0x1320 mm/vmalloc.c:3370
 __vmalloc_node mm/vmalloc.c:3435 [inline]
 vmalloc+0x79/0x90 mm/vmalloc.c:3468
 netlink_alloc_large_skb net/netlink/af_netlink.c:1189 [inline]
 netlink_sendmsg+0x602/0xbf0 net/netlink/af_netlink.c:1874
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x61b/0x980 net/socket.c:2595
 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2649
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2687 [inline]
 __se_sys_sendmsg+0x1d0/0x2c0 net/socket.c:2685
 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: 0033:0x7f76b039e559
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:00007f76b12b5028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f76b0626090 RCX: 00007f76b039e559
RDX: 0000000000000000 RSI: 00002000000008c0 RDI: 000000000000000b
RBP: 00007f76b0435ab8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f76b0626128 R14: 00007f76b0626090 R15: 00007ffc7ed5bbc8
 </TASK>
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 2664 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)