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): P19317/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=100813, q=1961 ncpus=2)
task:udevd state:R running task stack:26040 pid:19317 tgid:19317 ppid:5197 task_flags:0x400140 flags:0x00080800
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x17b4/0x5680 kernel/sched/core.c:7183
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7507
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline]
irqentry_exit+0x14f/0x730 kernel/entry/common.c:164
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:unwind_next_frame+0xf33/0x2550 arch/x86/kernel/unwind_orc.c:-1
Code: 8b 5c 24 78 4c 8b 64 24 18 74 08 48 89 df e8 64 b8 ba 00 4c 89 23 ba 10 00 00 00 48 8b 5c 24 28 48 89 df 31 f6 e8 2d ba ba 00 <48> 8b 3c 24 e9 d0 04 00 00 4c 89 64 24 18 4d 8d 6e 08 4d 89 ec 49
RSP: 0018:ffffc900037c6ff8 EFLAGS: 00000246
RAX: ffffc900037c7118 RBX: ffffc900037c7118 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900037c7128
RBP: dffffc0000000000 R08: ffffc900037c7127 R09: 0000000000000000
R10: ffffc900037c7118 R11: fffff520006f8e25 R12: ffffc900037c7dc0
R13: 1ffff920006f8e1b R14: ffffc900037c70c8 R15: ffffc900037c7110
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:1433 [inline]
__free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
__slab_free+0x263/0x2b0 mm/slub.c:5573
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x97/0x100 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:4538 [inline]
slab_alloc_node mm/slub.c:4866 [inline]
__do_kmalloc_node mm/slub.c:5259 [inline]
__kmalloc_noprof+0x316/0x760 mm/slub.c:5272
kmalloc_noprof include/linux/slab.h:954 [inline]
tomoyo_realpath_from_path+0xe3/0x5d0 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x229/0x470 security/tomoyo/file.c:776
security_file_open+0xa9/0x240 security/security.c:2739
do_dentry_open+0x384/0x14e0 fs/open.c:924
vfs_open+0x3b/0x340 fs/open.c:1079
do_open fs/namei.c:4699 [inline]
path_openat+0x2e08/0x3860 fs/namei.c:4858
do_file_open+0x23e/0x4a0 fs/namei.c:4887
do_sys_openat2+0x113/0x200 fs/open.c:1364
do_sys_open fs/open.c:1370 [inline]
__do_sys_openat fs/open.c:1386 [inline]
__se_sys_openat fs/open.c:1381 [inline]
__x64_sys_openat+0x138/0x170 fs/open.c:1381
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: 0033:0x7fd23d8a7407
RSP: 002b:00007ffd402694c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd23e08e880 RCX: 00007fd23d8a7407
RDX: 0000000000080000 RSI: 00007ffd40269640 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000056364585c7f5
R13: 000056364585c7f5 R14: 0000000000000001 R15: 0000563645877140
rcu: rcu_preempt kthread starved for 7980 jiffies! g100813 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:27544 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x17b4/0x5680 kernel/sched/core.c:7183
__schedule_loop kernel/sched/core.c:7262 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7277
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+0x388/0x470 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
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 12680 Comm: kworker/R-bond5 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: 0x0 (bond5)
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:198
Code: f7 e8 0d 6c ec f5 f7 c3 00 02 00 00 74 05 e8 10 88 17 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 a4 fd dd f5 65 8b 05 9d 00 88 07 85 c0 74 18 5b 41 5e e9 41 48
RSP: 0018:ffffc90000007888 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000246 RCX: 0000000080000102
RDX: 0000000000000002 RSI: ffffffff8dfb663f RDI: 0000000000000001
RBP: ffffc90000007968 R08: ffffffff903215b7 R09: 1ffffffff20642b6
R10: dffffc0000000000 R11: fffffbfff20642b7 R12: 0000000000000246
R13: 1ffff92000000f1c R14: ffff8880b8639040 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff888125245000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055704c4a3008 CR3: 000000003362e000 CR4: 00000000003526f0
Call Trace:
trace_drop_common+0x398/0x480 net/core/drop_monitor.c:263
__do_trace_kfree_skb include/trace/events/skb.h:24 [inline]
trace_kfree_skb+0x1d1/0x210 include/trace/events/skb.h:24
__sk_skb_reason_drop net/core/skbuff.c:1223 [inline]
sk_skb_reason_drop+0xdd/0x110 net/core/skbuff.c:1240
kfree_skb_reason include/linux/skbuff.h:1322 [inline]
kfree_skb include/linux/skbuff.h:1331 [inline]
ip6_mc_input+0x8de/0xbd0 net/ipv6/ip6_input.c:633
NF_HOOK+0x336/0x3c0 include/linux/netfilter.h:318
__netif_receive_skb_one_core net/core/dev.c:6209 [inline]
__netif_receive_skb net/core/dev.c:6322 [inline]
process_backlog+0x7dd/0x1950 net/core/dev.c:6673
__napi_poll+0xae/0x340 net/core/dev.c:7737
napi_poll net/core/dev.c:7800 [inline]
net_rx_action+0x627/0xf70 net/core/dev.c:7957
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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:198
Code: f7 e8 0d 6c ec f5 f7 c3 00 02 00 00 74 05 e8 10 88 17 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 a4 fd dd f5 65 8b 05 9d 00 88 07 85 c0 74 18 5b 41 5e e9 41 48
RSP: 0018:ffffc9000d7bf968 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000a06 RCX: 0000000080000001
RDX: 0000000000000006 RSI: ffffffff8dfb663f RDI: 0000000000000001
RBP: ffffc9000d7bfb90 R08: ffffffff903215b7 R09: 1ffffffff20642b6
R10: dffffc0000000000 R11: fffffbfff20642b7 R12: ffff888028d3e6b0
R13: 1ffff92001af7f38 R14: ffff888028d3e6b0 R15: 1ffff110170c779c
task_rq_unlock kernel/sched/sched.h:1930 [inline]
__set_cpus_allowed_ptr_locked+0x7bb/0x19c0 kernel/sched/core.c:3138
__set_cpus_allowed_ptr kernel/sched/core.c:3167 [inline]
set_cpus_allowed_ptr+0x18f/0x1f0 kernel/sched/core.c:3177
worker_attach_to_pool+0x1e0/0x3a0 kernel/workqueue.c:2718
rescuer_thread+0x35c/0x1130 kernel/workqueue.c:3588
kthread+0x388/0x470 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
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:1b, vlan:0)