bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5289/1:b..l P5635/2:b..l
rcu: (detected by 1, t=10502 jiffies, g=44385, q=413 ncpus=2)
task:kworker/1:3 state:R running task stack:24936 pid:5635 tgid:5635 ppid:2 task_flags:0x4208060 flags:0x00080000
Workqueue: mld mld_dad_work
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7234
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7413
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0xe1/0x130 kernel/softirq.c:457
local_bh_enable include/linux/bottom_half.h:33 [inline]
ip6t_do_table+0x13c4/0x15b0 net/ipv6/netfilter/ip6_tables.c:375
ip6t_mangle_out net/ipv6/netfilter/ip6table_mangle.c:49 [inline]
ip6table_mangle_hook+0x264/0x730 net/ipv6/netfilter/ip6table_mangle.c:72
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619
nf_hook include/linux/netfilter.h:273 [inline]
NF_HOOK+0x399/0x4f0 include/linux/netfilter.h:316
mld_sendpack+0x890/0xe10 net/ipv6/mcast.c:1853
mld_dad_work+0x3d/0x5a0 net/ipv6/mcast.c:2294
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
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
task:dhcpcd state:R running task stack:25448 pid:5289 tgid:5289 ppid:1 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7234
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7556
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__read_once_word_nocheck+0x3/0x10 include/asm-generic/rwonce.h:67
Code: b3 e1 bc 00 e9 1e fd ff ff 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000202f578 EFLAGS: 00000282
RAX: 00007f42a9ef3378 RBX: 1ffff92000405ec6 RCX: 1ffff92000405e01
RDX: ffffffff90bf1ab6 RSI: 0000000000000003 RDI: ffffc9000202ffc8
RBP: 1ffffffff217e356 R08: ffffc9000202ff48 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e959c20 R12: 1ffff92000405ec7
R13: ffffc90002030000 R14: ffffc9000202f628 R15: ffffc90002028000
deref_stack_regs arch/x86/kernel/unwind_orc.c:437 [inline]
unwind_next_frame+0xe8d/0x2550 arch/x86/kernel/unwind_orc.c:625
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:1406 [inline]
__free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950
__slab_free+0x274/0x2c0 mm/slub.c:5767
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:406
kasan_kmalloc include/linux/kasan.h:263 [inline]
__do_kmalloc_node mm/slub.c:5362 [inline]
__kmalloc_noprof+0x375/0x720 mm/slub.c:5387
_kmalloc_noprof include/linux/slab.h:973 [inline]
_kzalloc_noprof include/linux/slab.h:1290 [inline]
tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
tomoyo_encode+0x2ad/0x570 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x5fa/0x640 security/tomoyo/realpath.c:283
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_number_perm+0x246/0x5f0 security/tomoyo/file.c:728
security_file_ioctl+0xc3/0x2a0 security/security.c:2512
__do_sys_ioctl fs/ioctl.c:591 [inline]
__se_sys_ioctl+0x47/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f42a9ef3378
RSP: 002b:00007ffea02058f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00005654b85a9be0 RCX: 00007f42a9ef3378
RDX: 00007ffea0205900 RSI: 0000000000008921 RDI: 000000000000000f
RBP: 00007ffea0205900 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00005654b85b2870
R13: 00005654b85a9be0 R14: 00005654b85b2870 R15: 00007ffea0205b50
rcu: rcu_preempt kthread starved for 7822 jiffies! g44385 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:28192 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7234
__schedule_loop kernel/sched/core.c:7311 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7326
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2123
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2325
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: 1 UID: 0 PID: 3230 Comm: kworker/R-bat_e Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: bat_events batadv_dat_purge
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:56 [inline]
RIP: 0010:unwind_next_frame+0x1a3c/0x2550 arch/x86/kernel/unwind_orc.c:694
Code: 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 9d f7 bc 00 4d 8b 66 08 49 8d 5e 10 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 76 f7 bc 00 48 8b 03 4d 39 fc 0f 96
RSP: 0018:ffffc90000a07e40 EFLAGS: 00000a02
RAX: 1ffff92000140fdf RBX: ffffc90000a07ef8 RCX: dffffc0000000000
RDX: ffffc90000a07f28 RSI: dffffc0000000000 RDI: ffffc90000a07ef0
RBP: 1ffffffff22b9801 R08: ffffc90000a085f0 R09: 0000000000000000
R10: ffffc90000a07f38 R11: fffff52000140fe9 R12: ffffc90000a01000
R13: ffffffff8176f21f R14: ffffc90000a07ee8 R15: ffffc90000a08600
FS: 0000000000000000(0000) GS:ffff888125326000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf6fd6a000 CR3: 000000006211a000 CR4: 00000000003526f0
Call Trace:
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:340 [inline]
__kasan_mempool_unpoison_object+0xa3/0x130 mm/kasan/common.c:564
kasan_mempool_unpoison_object include/linux/kasan.h:391 [inline]
napi_skb_cache_get+0x3c8/0x7d0 net/core/skbuff.c:306
__alloc_skb+0x19d/0x7a0 net/core/skbuff.c:698
alloc_skb include/linux/skbuff.h:1384 [inline]
nlmsg_new include/net/netlink.h:1055 [inline]
fdb_notify+0xa6/0x160 net/bridge/br_fdb.c:188
br_fdb_update+0x4e6/0x6c0 net/bridge/br_fdb.c:1024
br_handle_frame_finish+0x618/0x1990 net/bridge/br_input.c:144
br_nf_hook_thresh+0x3dd/0x4c0 net/bridge/br_netfilter_hooks.c:-1
br_nf_pre_routing_finish_ipv6+0x90c/0xc40 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:318 [inline]
br_nf_pre_routing_ipv6+0x382/0x6f0 net/bridge/br_netfilter_ipv6.c:183
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
br_handle_frame+0x127f/0x1510 net/bridge/br_input.c:442
__netif_receive_skb_core+0x989/0x30b0 net/core/dev.c:6093
__netif_receive_skb_one_core net/core/dev.c:6204 [inline]
__netif_receive_skb net/core/dev.c:6319 [inline]
process_backlog+0x706/0x1860 net/core/dev.c:6670
__napi_poll+0xaa/0x330 net/core/dev.c:7729
napi_poll net/core/dev.c:7792 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:7949
handle_softirqs+0x225/0x840 kernel/softirq.c:622
do_softirq+0x76/0xd0 kernel/softirq.c:523
__local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
spin_unlock_bh include/linux/spinlock.h:396 [inline]
__batadv_dat_purge net/batman-adv/distributed-arp-table.c:186 [inline]
batadv_dat_purge+0x2d7/0x3c0 net/batman-adv/distributed-arp-table.c:205
process_one_work kernel/workqueue.c:3322 [inline]
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
rescuer_thread+0x7b6/0x10b0 kernel/workqueue.c:3629
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 veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
net_ratelimit: 9042 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:02:a5:32:ab:3d:4d, vlan:0)