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): P733/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=22153, q=1139 ncpus=2)
task:kworker/u8:6 state:R running task stack:25368 pid:733 tgid:733 ppid:2 task_flags:0x4208060 flags:0x00080000
Workqueue: 0x0 (events_unbound)
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1821/0x5740 kernel/sched/core.c:7189
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8b0 kernel/entry/common.c:164
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:60 [inline]
RIP: 0010:unwind_next_frame+0x1a75/0x2550 arch/x86/kernel/unwind_orc.c:694
Code: e8 03 80 3c 28 00 74 08 4c 89 ff e8 25 13 ba 00 49 8b 07 4d 39 e5 0f 96 c1 4c 39 e0 0f 97 c2 20 ca 80 fa 01 0f 85 63 01 00 00 <49> 8d 4c 24 08 4c 39 e9 0f 86 55 01 00 00 48 39 c1 0f 87 4c 01 00
RSP: 0018:ffffc90004617338 EFLAGS: 00000246
RAX: ffffc90004618000 RBX: ffffffff90c5f801 RCX: 0000000000000001
RDX: ffffc90004617401 RSI: dffffc0000000000 RDI: ffffc90004617410
RBP: dffffc0000000000 R08: ffffc90004617e70 R09: 0000000000000000
R10: ffffc90004617458 R11: fffff520008c2e8d R12: ffffc90004617e80
R13: ffffc90004610000 R14: ffffc90004617408 R15: ffffc90004617418
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:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
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:5296 [inline]
__kmalloc_node_track_caller_noprof+0x4db/0x7b0 mm/slub.c:5408
kvasprintf+0xeb/0x1a0 lib/kasprintf.c:25
__kthread_create_on_node+0x1cf/0x3f0 kernel/kthread.c:491
kthread_create_on_node+0xeb/0x140 kernel/kthread.c:559
create_worker+0x2e2/0x7e0 kernel/workqueue.c:2853
maybe_create_worker kernel/workqueue.c:3113 [inline]
manage_workers kernel/workqueue.c:3190 [inline]
worker_thread+0x4d8/0xfc0 kernel/workqueue.c:3453
kthread+0x389/0x470 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: rcu_preempt kthread starved for 725 jiffies! g22153 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:27736 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1821/0x5740 kernel/sched/core.c:7189
__schedule_loop kernel/sched/core.c:7268 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7283
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+0x389/0x470 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: 3234 Comm: kworker/R-bat_e Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: bat_events batadv_tt_purge
RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216
Code: 8b 3d 64 79 60 0c 48 89 de 5b e9 83 06 60 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d 48 49 72 11 65 8b 15 69 49 72 11 81 e2 00 01 ff 00 74
RSP: 0018:ffffc90000a082f0 EFLAGS: 00000282
RAX: ffffffff8a56d832 RBX: ffff88807b5ac8c8 RCX: 0000000000000003
RDX: 000000000000001b RSI: 0000000000000001 RDI: ffff88807b5ac8c8
RBP: 000000000000001b R08: ffffc90000a08600 R09: ffffc90000a08610
R10: ffffc90000a08460 R11: fffff5200014108e R12: 0000000000000003
R13: dffffc0000000000 R14: ffff88807b5ac800 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8881253a0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f55a3400218 CR3: 000000007ec5c000 CR4: 00000000003526f0
Call Trace:
find_match+0x32/0xb40 net/ipv6/route.c:775
__find_rr_leaf+0x248/0x760 net/ipv6/route.c:871
find_rr_leaf net/ipv6/route.c:892 [inline]
rt6_select net/ipv6/route.c:936 [inline]
fib6_table_lookup+0x3b4/0xa80 net/ipv6/route.c:2254
ip6_pol_route+0x228/0x13d0 net/ipv6/route.c:2290
pol_lookup_func include/net/ip6_fib.h:667 [inline]
fib6_rule_lookup+0x556/0x730 net/ipv6/fib6_rules.c:123
ip6_route_input_lookup net/ipv6/route.c:2359 [inline]
ip6_route_input+0x730/0xad0 net/ipv6/route.c:2662
ip6_rcv_finish+0x141/0x280 net/ipv6/ip6_input.c:117
NF_HOOK+0x336/0x3c0 include/linux/netfilter.h:318
__netif_receive_skb_one_core net/core/dev.c:6202 [inline]
__netif_receive_skb net/core/dev.c:6315 [inline]
process_backlog+0x7dd/0x1950 net/core/dev.c:6666
__napi_poll+0xae/0x340 net/core/dev.c:7733
napi_poll net/core/dev.c:7796 [inline]
net_rx_action+0x627/0xf70 net/core/dev.c:7953
handle_softirqs+0x22a/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_tt_local_purge+0x2a7/0x340 net/batman-adv/translation-table.c:1355
batadv_tt_purge+0x35/0x9e0 net/batman-adv/translation-table.c:3549
process_one_work kernel/workqueue.c:3314 [inline]
process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397
rescuer_thread+0x827/0x1130 kernel/workqueue.c:3621
kthread+0x389/0x470 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_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:1c, 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:1c, 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:1c, 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:1c, 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:1c, 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:1c, vlan:0)