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)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4459/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=19141, q=318 ncpus=2)
task:udevd state:R running task stack:26592 pid:4459 ppid:1 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
preempt_schedule_common+0x45/0xb0 kernel/sched/core.c:6838
preempt_schedule_thunk+0x1a/0x20 arch/x86/entry/thunk_64.S:34
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:390 [inline]
fast_dput fs/dcache.c:792 [inline]
fast_dput fs/dcache.c:765 [inline]
dput+0x525/0xe10 fs/dcache.c:900
step_into+0xf62/0x2030 fs/namei.c:1851
walk_component+0xf5/0x5a0 fs/namei.c:2004
link_path_walk.part.0+0x74e/0xd60 fs/namei.c:2325
link_path_walk fs/namei.c:2250 [inline]
path_openat+0x262/0x2710 fs/namei.c:3789
do_filp_open+0x1ba/0x410 fs/namei.c:3820
do_sys_openat2+0x16d/0x510 fs/open.c:1402
do_sys_open fs/open.c:1418 [inline]
__do_sys_openat fs/open.c:1434 [inline]
__se_sys_openat fs/open.c:1429 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1429
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1e9411a477
RSP: 002b:00007fff4b57aeb8 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055e9287d02a0 RCX: 00007f1e9411a477
RDX: 0000000000090800 RSI: 000055e9287ed9b0 RDI: 00000000ffffff9c
RBP: 000055e9288024f0 R08: 0000000000090800 R09: 000055e9287ed9b0
R10: 0000000000000000 R11: 0000000000000287 R12: 000055e9287ed9b0
R13: 00000000000000ff R14: 000055e92863f1c4 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 5962 jiffies! g19141 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:28808 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_timeout+0x14e/0x2b0 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1609
rcu_gp_kthread+0x23a/0x360 kernel/rcu/tree.c:1808
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.4.0-syzkaller-01406-ge8f75c0270d9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:stack_trace_consume_entry+0x96/0x160 kernel/stacktrace.c:89
Code: 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 90 00 00 00 8b 43 0c <85> c0 75 53 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80
RSP: 0018:ffffc900001dfed8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900001dffb0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814de947 RDI: ffffc900001dffbc
RBP: 0000000000000017 R08: 0000000000000001 R09: ffffc900001e0fe0
R10: ffffc900001dfef8 R11: 0000000000094001 R12: ffffc900001dffb0
R13: 0000000000000000 R14: ffff888015e51dc0 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000bd05d8 CR3: 000000000c571000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x71/0xf0 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x90/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x7f/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:186 [inline]
slab_post_alloc_hook mm/slab.h:711 [inline]
slab_alloc_node mm/slub.c:3451 [inline]
slab_alloc mm/slub.c:3459 [inline]
__kmem_cache_alloc_lru mm/slub.c:3466 [inline]
kmem_cache_alloc+0x17c/0x3b0 mm/slub.c:3475
skb_ext_maybe_cow net/core/skbuff.c:6712 [inline]
skb_ext_add+0xfa/0x790 net/core/skbuff.c:6778
nf_bridge_unshare net/bridge/br_netfilter_hooks.c:160 [inline]
br_nf_forward_ip+0xe1/0x13c0 net/bridge/br_netfilter_hooks.c:592
nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline]
nf_hook_slow+0xc9/0x1f0 net/netfilter/core.c:626
nf_hook+0x431/0x730 include/linux/netfilter.h:258
NF_HOOK include/linux/netfilter.h:301 [inline]
__br_forward+0x19a/0x570 net/bridge/br_forward.c:115
deliver_clone net/bridge/br_forward.c:131 [inline]
br_flood+0x383/0x470 net/bridge/br_forward.c:242
br_handle_frame_finish+0xf89/0x1de0 net/bridge/br_input.c:210
br_nf_hook_thresh+0x2fb/0x3f0 net/bridge/br_netfilter_hooks.c:1048
br_nf_pre_routing_finish_ipv6+0x695/0xf30 net/bridge/br_netfilter_ipv6.c:148
NF_HOOK include/linux/netfilter.h:303 [inline]
br_nf_pre_routing_ipv6+0x41b/0x830 net/bridge/br_netfilter_ipv6.c:178
br_nf_pre_routing+0xda4/0x1520 net/bridge/br_netfilter_hooks.c:508
nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:272 [inline]
br_handle_frame+0x9cb/0x1320 net/bridge/br_input.c:416
__netif_receive_skb_core+0xa10/0x3900 net/core/dev.c:5387
__netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5491
__netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5607
process_backlog+0x101/0x670 net/core/dev.c:5935
__napi_poll+0xb7/0x6f0 net/core/dev.c:6498
napi_poll net/core/dev.c:6565 [inline]
net_rx_action+0x8a9/0xcb0 net/core/dev.c:6698
__do_softirq+0x1d4/0x905 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+0x97/0xc0 arch/x86/kernel/apic/apic.c:1109
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
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:72 [inline]
RIP: 0010:__intel_idle_hlt drivers/idle/intel_idle.c:206 [inline]
RIP: 0010:intel_idle_hlt+0x23/0x30 drivers/idle/intel_idle.c:224
Code: 1f 84 00 00 00 00 00 f3 0f 1e fa 41 54 41 89 d4 0f 1f 44 00 00 66 90 0f 1f 44 00 00 0f 00 2d 94 de 9b 00 0f 1f 44 00 00 fb f4 44 89 e0 41 5c c3 66 0f 1f 44 00 00 f3 0f 1e fa 41 54 41 89 d4
RSP: 0018:ffffc90000177d78 EFLAGS: 00000246
RAX: 000000000158704b RBX: ffffe8ffffd09aa0 RCX: ffffffff8a11ed45
RDX: 0000000000000002 RSI: ffffffff8d1a2b80 RDI: ffffe8ffffd09aa0
RBP: ffffffff8d1a2b80 R08: 0000000000000001 R09: ffff8880b9936d2b
R10: ffffed1017326da5 R11: ffff8880b983d018 R12: 0000000000000002
R13: ffffffff8d1a2c68 R14: 0000000000000002 R15: 0000000000000000
cpuidle_enter_state+0xd3/0x6f0 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
cpuidle_idle_call kernel/sched/idle.c:215 [inline]
do_idle+0x2fe/0x3c0 kernel/sched/idle.c:282
cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379
start_secondary+0x200/0x290 arch/x86/kernel/smpboot.c:326
secondary_startup_64_no_verify+0x167/0x16b
net_ratelimit: 3977 callbacks suppressed
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:1b, 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:4e:80:ba:e0:a2:76, 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:1b, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 5315 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:4e:80:ba:e0:a2:76, 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)
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:1b, 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:4e:80:ba:e0:a2:76, 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)