bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:e1:a6:2d:42:30, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1):
P1164/2:b..l
rcu: (detected by 0, t=10504 jiffies, g=32681, q=672 ncpus=2)
task:kworker/1:2 state:R
running task stack:21800 pid:1164 tgid:1164 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: mld mld_ifc_work
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6947
preempt_schedule+0xe4/0xf0 kernel/sched/core.c:6971
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0x179/0x200 kernel/softirq.c:414
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:910 [inline]
__dev_queue_xmit+0x1780/0x3f60 net/core/dev.c:4660
neigh_output include/net/neighbour.h:539 [inline]
ip6_finish_output2+0x1296/0x1750 net/ipv6/ip6_output.c:141
__ip6_finish_output net/ipv6/ip6_output.c:-1 [inline]
ip6_finish_output+0x421/0x840 net/ipv6/ip6_output.c:226
NF_HOOK+0xa0/0x440 include/linux/netfilter.h:314
mld_sendpack+0x84a/0xdc0 net/ipv6/mcast.c:1868
mld_send_cr net/ipv6/mcast.c:2169 [inline]
mld_ifc_work+0x7d9/0xd90 net/ipv6/mcast.c:2702
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
rcu: rcu_preempt kthread starved for 380 jiffies! g32681 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:26688 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-next-20250331-syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__kasan_check_byte+0x6/0x40 mm/kasan/common.c:555
Code: c8 48 89 c3 e9 db fe ff ff 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 66 0f 1f 00 41 57 <41> 56 53 49 89 f6 49 89 ff e8 9c 17 00 00 89 c3 84 c0 75 12 be 01
RSP: 0018:ffffc90000a070f8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8ed3df80 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffffffff816e0235 RDI: ffffffff8ed3df80
RBP: ffffffff9368b020 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90000a072b0 R11: ffffffff81aee820 R12: 0000000000000000
R13: 0000000000000002 R14: ffffffff8af7e44e R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888125095000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000002f000 CR3: 000000005f04a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kasan_check_byte include/linux/kasan.h:399 [inline]
lock_acquire+0x89/0x2f0 kernel/locking/lockdep.c:5840
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:841 [inline]
class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
unwind_next_frame+0xd5/0x23b0 arch/x86/kernel/unwind_orc.c:479
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
br_nf_dev_queue_xmit+0x4cb/0x2560 net/bridge/br_netfilter_hooks.c:-1
NF_HOOK+0x6bf/0x780 include/linux/netfilter.h:314
br_nf_post_routing+0xa28/0xe80 net/bridge/br_netfilter_hooks.c:969
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+0x2ac/0x460 include/linux/netfilter.h:312
br_forward_finish+0xd8/0x130 net/bridge/br_forward.c:66
br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:-1 [inline]
br_nf_forward_finish+0xb50/0xfb0 net/bridge/br_netfilter_hooks.c:665
NF_HOOK+0x6bf/0x780 include/linux/netfilter.h:314
br_nf_forward_ip+0x61e/0x7b0 net/bridge/br_netfilter_hooks.c:719
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+0x2ac/0x460 include/linux/netfilter.h:312
__br_forward+0x46a/0x640 net/bridge/br_forward.c:115
br_handle_frame_finish+0x185b/0x1f60 net/bridge/br_input.c:220
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:5777
__netif_receive_skb_one_core net/core/dev.c:5889 [inline]
__netif_receive_skb+0x130/0x670 net/core/dev.c:6004
process_backlog+0x664/0x15c0 net/core/dev.c:6356
__napi_poll+0xcb/0x480 net/core/dev.c:7328
napi_poll net/core/dev.c:7392 [inline]
net_rx_action+0x89d/0x1240 net/core/dev.c:7514
handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:81
Code: cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d d3 40 18 00 f3 0f 1e fa fb f4 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000197d00 EFLAGS: 000002c6
RAX: ffff88801cef5a00 RBX: ffff8880216bf064 RCX: ffffffff8c2ffb9c
RDX: 0000000000000001 RSI: ffff8880216bf000 RDI: ffff8880216bf064
RBP: ffffffff936a0c78 R08: ffff8880b8732b5b R09: 1ffff110170e656b
R10: dffffc0000000000 R11: ffffffff8c301680 R12: ffff88801c3a6000
R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f54e040
arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:701
cpuidle_enter_state+0x111/0x490 drivers/cpuidle/cpuidle.c:268
cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:389
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x374/0x5d0 kernel/sched/idle.c:325
cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:423
start_secondary+0xfe/0x100 arch/x86/kernel/smpboot.c:315
common_startup_64+0x13e/0x147
net_ratelimit: 12097 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:e1:a6:2d:42:30, 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: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:6e:e1:a6:2d:42:30, 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:6e:e1:a6:2d:42:30, 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: 15880 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:1b, vlan:0)