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): P8082/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=22001, q=319 ncpus=2)
task:syz.1.645 state:R running task stack:25896 pid:8082 tgid:8074 ppid:5828 task_flags:0x48044c flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b9a/0x5250 kernel/sched/core.c:6769
preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7092
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline]
RIP: 0010:debug_lockdep_rcu_enabled+0x18/0x40 kernel/rcu/update.c:321
Code: 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d e7 30 2d 04 00 74 1e 83 3d ba 5e 2d 04 00 74 15 <65> 48 8b 0c 25 08 f0 69 93 31 c0 83 b9 ec 0a 00 00 00 0f 94 c0 c3
RSP: 0018:ffffc900033271e0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff88801f049cf0 RCX: ffff888025711e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff8237c45c R09: 1ffff11003e09394
R10: dffffc0000000000 R11: ffffed1003e09395 R12: 0000000000078ec3
R13: dffffc0000000000 R14: 0000000000001f92 R15: ffffffff8237c31e
rcu_read_unlock include/linux/rcupdate.h:869 [inline]
__update_page_owner_free_handle+0x3c0/0x460 mm/page_owner.c:283
__reset_page_owner+0x89/0x1e0 mm/page_owner.c:309
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1256 [inline]
__free_frozen_pages+0xdeb/0x10c0 mm/page_alloc.c:2718
discard_slab mm/slub.c:2720 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3189
put_cpu_partial+0x17e/0x250 mm/slub.c:3264
__slab_free+0x294/0x390 mm/slub.c:4516
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4151 [inline]
slab_alloc_node mm/slub.c:4200 [inline]
__do_kmalloc_node mm/slub.c:4330 [inline]
__kmalloc_noprof+0x238/0x4d0 mm/slub.c:4343
kmalloc_noprof include/linux/slab.h:909 [inline]
kzalloc_noprof include/linux/slab.h:1039 [inline]
kobject_get_path+0xc3/0x2c0 lib/kobject.c:161
kobject_uevent_env+0x2a5/0x8e0 lib/kobject_uevent.c:545
device_del+0x7dd/0x9b0 drivers/base/core.c:3873
device_unregister+0x20/0xc0 drivers/base/core.c:3896
hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
hci_conn_del+0x8d5/0xc50 net/bluetooth/hci_conn.c:1167
hci_conn_hash_flush+0x18e/0x240 net/bluetooth/hci_conn.c:2702
hci_dev_close_sync+0xa8d/0x1260 net/bluetooth/hci_sync.c:5225
hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2678
vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:665
__fput+0x3e9/0x9f0 fs/file_table.c:465
task_work_run+0x251/0x310 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x754/0x2520 kernel/exit.c:949
do_group_exit+0x207/0x2c0 kernel/exit.c:1098
get_signal+0x1696/0x1730 kernel/signal.c:3034
arch_do_signal_or_restart+0x98/0x840 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc7bcb8d169
RSP: 002b:00007fc7bd9da038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: 0000000000010106 RBX: 00007fc7bcda6080 RCX: 00007fc7bcb8d169
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007fc7bcc0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fc7bcda6080 R15: 00007ffebcfe2968
rcu: rcu_preempt kthread starved for 1101 jiffies! g22001 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:26408 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b9a/0x5250 kernel/sched/core.c:6769
__schedule_loop kernel/sched/core.c:6847 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6862
schedule_timeout+0x15b/0x2b0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2e1/0x1340 kernel/rcu/tree.c:2046
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2248
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5885 Comm: kworker/0:6 Not tainted 6.15.0-rc1-next-20250409-syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: wg-kex-wg0 wg_packet_handshake_receive_worker
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:211 [inline]
RIP: 0010:unwind_next_frame+0x218/0x23b0 arch/x86/kernel/unwind_orc.c:494
Code: 81 4c 89 e5 48 29 c5 48 c1 ed 08 48 c7 c0 f4 d3 93 91 48 c7 c1 0c b0 c0 91 48 29 c1 48 c1 e9 02 45 31 f6 80 3d b8 0d 0c 0d 00 <44> 0f 45 f1 41 8d 46 ff 39 e8 0f 86 1d 19 00 00 89 e8 48 8d 1c 85
RSP: 0018:ffffc900000065a8 EFLAGS: 00000202
RAX: ffffffff9193d3f4 RBX: ffffc900000066c8 RCX: 00000000000b3706
RDX: 0000000000000000 RSI: ffffffff8ca1e6a0 RDI: ffffffff8ca1e660
RBP: 0000000000008c3a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff818c3a0f
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff816e6238
FS: 0000000000000000(0000) GS:ffff888124f81000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff5a1000218 CR3: 000000000eb3a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2389 [inline]
slab_free mm/slub.c:4646 [inline]
kmem_cache_free+0x197/0x410 mm/slub.c:4748
skb_release_all net/core/skbuff.c:1160 [inline]
__kfree_skb net/core/skbuff.c:1176 [inline]
sk_skb_reason_drop+0x194/0x380 net/core/skbuff.c:1214
kfree_skb_reason include/linux/skbuff.h:1279 [inline]
kfree_skb include/linux/skbuff.h:1288 [inline]
ip6_mc_input+0x9e4/0xbd0 net/ipv6/ip6_input.c:591
ip_sabotage_in+0x203/0x290 net/bridge/br_netfilter_hooks.c:993
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc8/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x29b/0x450 include/linux/netfilter.h:312
__netif_receive_skb_one_core net/core/dev.c:5887 [inline]
__netif_receive_skb+0x1ef/0x670 net/core/dev.c:6000
netif_receive_skb_internal net/core/dev.c:6086 [inline]
netif_receive_skb+0x1ea/0x890 net/core/dev.c:6145
NF_HOOK+0xa0/0x410 include/linux/netfilter.h:314
br_handle_frame_finish+0x188d/0x1f60 net/bridge/br_input.c:226
br_nf_hook_thresh+0x482/0x5a0 net/bridge/br_netfilter_hooks.c:1170
br_nf_pre_routing_finish_ipv6+0xaa3/0xdd0 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x397/0x790 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:282 [inline]
br_handle_frame+0x9fa/0x1530 net/bridge/br_input.c:433
__netif_receive_skb_core+0x155a/0x4bb0 net/core/dev.c:5773
__netif_receive_skb_one_core net/core/dev.c:5885 [inline]
__netif_receive_skb+0x130/0x670 net/core/dev.c:6000
process_backlog+0x664/0x15c0 net/core/dev.c:6352
__napi_poll+0xcb/0x480 net/core/dev.c:7324
napi_poll net/core/dev.c:7388 [inline]
net_rx_action+0x89d/0x1240 net/core/dev.c:7510
handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579
do_softirq+0x11f/0x1e0 kernel/softirq.c:480
__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:407
local_bh_enable include/linux/bottom_half.h:33 [inline]
fpregs_unlock arch/x86/include/asm/fpu/api.h:77 [inline]
kernel_fpu_end+0x103/0x150 arch/x86/kernel/fpu/core.c:460
blake2s_compress+0x5f/0xd0 arch/x86/crypto/blake2s-glue.c:48
blake2s_update+0x135/0x420 lib/crypto/blake2s.c:32
hmac+0x3f9/0x9d0 drivers/net/wireguard/noise.c:324
kdf drivers/net/wireguard/noise.c:367 [inline]
mix_dh drivers/net/wireguard/noise.c:413 [inline]
wg_noise_handshake_create_response+0x4ff/0xe90 drivers/net/wireguard/noise.c:702
wg_packet_send_handshake_response+0xfb/0x2e0 drivers/net/wireguard/send.c:94
wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline]
wg_packet_handshake_receive_worker+0x5e8/0xf60 drivers/net/wireguard/receive.c:213
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd50 kernel/workqueue.c:3400
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 13655 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 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)
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:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:46:13:b6:50:a8:52, 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 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)
net_ratelimit: 16248 callbacks suppressed
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)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:46:13:b6:50:a8:52, 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: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 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:46:13:b6:50:a8:52, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)