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): P5111/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=234005, q=298 ncpus=2)
task:syz-executor.4 state:R running task stack:24128 pid:5111 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5365 [inline]
__schedule+0xee1/0x5a00 kernel/sched/core.c:6677
preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6858
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
__raw_read_unlock include/linux/rwlock_api_smp.h:233 [inline]
_raw_read_unlock+0x3a/0x40 kernel/locking/spinlock.c:260
zap_pid_ns_processes+0x26c/0x690 kernel/pid_namespace.c:210
find_child_reaper kernel/exit.c:608 [inline]
forget_original_parent kernel/exit.c:697 [inline]
exit_notify kernel/exit.c:734 [inline]
do_exit+0x2386/0x2ae0 kernel/exit.c:891
do_group_exit+0xd4/0x2a0 kernel/exit.c:1021
get_signal+0x23ba/0x2790 kernel/signal.c:2904
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fee5ba79b13
RSP: 002b:00007ffcbf105e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: fffffffffffffff4 RBX: 0000000000000000 RCX: 00007fee5ba79b13
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055555648d750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
rcu: rcu_preempt kthread starved for 323 jiffies! g234005 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:28304 pid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5365 [inline]
__schedule+0xee1/0x5a00 kernel/sched/core.c:6677
preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7001
irqentry_exit+0x35/0x80 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:__timer_delete_sync+0x7c/0x1b0 kernel/time/timer.c:1563
Code: 32 f2 ff 48 89 de 4c 89 ef e8 f0 23 f2 ff 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 ee 9d 11 00 48 85 db 58 0f 85 03 01 00 00 4f a2 11 00 31 ff 65 8b 1d ce 24 8d 7e 81 e3 00 00 0f 00 89 de
RSP: 0018:ffffc90000167bf8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888016e58000 RSI: ffffffff817698e9 RDI: 0000000000000007
RBP: ffffc90000167c48 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90000167c70 R14: 1ffffffff1901e40 R15: 0000000000000001
timer_delete_sync kernel/time/timer.c:1628 [inline]
del_timer_sync include/linux/timer.h:199 [inline]
schedule_timeout+0x161/0x2c0 kernel/time/timer.c:2168
rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1613
rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1812
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
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: 32273 Comm: kworker/u4:0 Not tainted 6.6.0-rc2-next-20230921-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline]
RIP: 0010:__orc_find+0xae/0x130 arch/x86/kernel/unwind_orc.c:102
Code: c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 4c 8d 3c 83 4c 89 fa 48 c1 ea 03 42 0f b6 0c 32 4c 89 fa 83 e2 07 83 c2 03 38 ca 7c 04 <84> c9 75 6f 49 63 17 4c 89 e7 4d 8d 2c 17 4c 89 ee e8 2c ea 4d 00
RSP: 0018:ffffc90000006eb8 EFLAGS: 00000206
RAX: 0000000000000001 RBX: ffffffff8f4cbef4 RCX: 0000000000000000
RDX: 0000000000000003 RSI: ffffffff813a4ada RDI: 0000000000000006
RBP: ffffffff8f4cbefc R08: 0000000000000006 R09: ffffffff8a452c32
R10: ffffffff8a452c4e R11: 0200000000000000 R12: ffffffff8a452c32
R13: ffffffff8a452c4e R14: dffffc0000000000 R15: ffffffff8f4cbef8
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6106c5efb8 CR3: 000000000c976000 CR4: 00000000003506f0
Call Trace:
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x329/0x2390 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
kmem_cache_alloc_node+0x180/0x3e0 mm/slub.c:3523
__alloc_skb+0x287/0x330 net/core/skbuff.c:640
alloc_skb include/linux/skbuff.h:1286 [inline]
nlmsg_new include/net/netlink.h:999 [inline]
fdb_notify+0x9f/0x190 net/bridge/br_fdb.c:198
br_fdb_update+0x326/0x760 net/bridge/br_fdb.c:900
br_handle_frame_finish+0x731/0x1d80 net/bridge/br_input.c:138
br_nf_hook_thresh+0x2ff/0x410 net/bridge/br_netfilter_hooks.c:1048
br_nf_pre_routing_finish_ipv6+0x683/0xf20 net/bridge/br_netfilter_ipv6.c:148
NF_HOOK include/linux/netfilter.h:304 [inline]
br_nf_pre_routing_ipv6+0x40e/0x870 net/bridge/br_netfilter_ipv6.c:178
br_nf_pre_routing+0x80f/0x1540 net/bridge/br_netfilter_hooks.c:508
nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:272 [inline]
br_handle_frame+0x9da/0x1700 net/bridge/br_input.c:417
__netif_receive_skb_core.constprop.0+0xa26/0x3fa0 net/core/dev.c:5417
__netif_receive_skb_one_core+0xaf/0x180 net/core/dev.c:5521
__netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5637
process_backlog+0x101/0x6b0 net/core/dev.c:5965
__napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6527
napi_poll net/core/dev.c:6594 [inline]
net_rx_action+0x956/0xe90 net/core/dev.c:6727
__do_softirq+0x21a/0x968 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu kernel/softirq.c:632 [inline]
irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:write_comp_data+0x85/0x90 kernel/kcov.c:262
Code: 00 00 4a 8d 34 dd 28 00 00 00 48 39 f2 72 1b 48 83 c7 01 48 89 38 4c 89 44 30 e0 4c 89 4c 30 e8 4c 89 54 30 f0 4a 89 4c d8 20 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 8b 0c 24 40 0f b6
RSP: 0018:ffffc9000436f918 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9941aa0 RCX: ffffffff817c7d6a
RDX: ffff888019659dc0 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1017328355
R13: 0000000000000001 R14: ffff8880b983d900 R15: ffff8880b9941aa8
csd_lock_wait kernel/smp.c:300 [inline]
smp_call_function_many_cond+0x4fa/0x1570 kernel/smp.c:844
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1012
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1990 [inline]
text_poke_bp_batch+0x2ce/0x960 arch/x86/kernel/alternative.c:2200
text_poke_flush arch/x86/kernel/alternative.c:2391 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2388 [inline]
text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2398
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32e/0x410 kernel/jump_label.c:829
static_key_enable_cpuslocked+0x1b5/0x270 kernel/jump_label.c:205
static_key_enable+0x1a/0x20 kernel/jump_label.c:218
toggle_allocation_gate mm/kfence/core.c:830 [inline]
toggle_allocation_gate+0xf4/0x250 mm/kfence/core.c:822
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
net_ratelimit: 6036 callbacks suppressed
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:ba:e7:b7:05:13:f0, 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:ba:e7:b7:05:13:f0, 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)
net_ratelimit: 8091 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:ba:e7:b7:05:13:f0, 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:ba:e7:b7:05:13:f0, 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:ba:e7:b7:05:13:f0, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)