bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5239/2:b..l
rcu: (detected by 0, t=10503 jiffies, g=18669, q=750 ncpus=2)
task:syz-executor state:R running task stack:19232 pid:5239 tgid:5239 ppid:5223 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7004
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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5829
Code: 2b 00 74 08 4c 89 f7 e8 8a 3f 8e 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900039df6c0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200073bee4 RCX: 43650f3af49c3800
RDX: dffffc0000000000 RSI: ffffffff8c0adc40 RDI: ffffffff8c60fb20
RBP: ffffc900039df810 R08: ffffffff942c7807 R09: 1ffffffff2858f00
R10: dffffc0000000000 R11: fffffbfff2858f01 R12: 1ffff9200073bee0
R13: dffffc0000000000 R14: ffffc900039df720 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
is_bpf_text_address+0x46/0x2a0 kernel/bpf/core.c:767
kernel_text_address+0xa7/0xe0 kernel/extable.c:125
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0xfd/0x150 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1108 [inline]
free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638
__slab_free+0x31b/0x3d0 mm/slub.c:4490
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:247 [inline]
slab_post_alloc_hook mm/slub.c:4085 [inline]
slab_alloc_node mm/slub.c:4134 [inline]
kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4141
getname_flags+0xb7/0x540 fs/namei.c:139
user_path_at+0x24/0x60 fs/namei.c:3015
ksys_umount fs/namespace.c:2033 [inline]
__do_sys_umount fs/namespace.c:2041 [inline]
__se_sys_umount fs/namespace.c:2039 [inline]
__x64_sys_umount+0xf1/0x170 fs/namespace.c:2039
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd2fe97f327
RSP: 002b:00007ffc795745a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 00007fd2fe9f0134 RCX: 00007fd2fe97f327
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc795756e0
RBP: 00007ffc795756cc R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc795756e0
R13: 00007fd2fe9f0134 R14: 0000000000020dc8 R15: 00007ffc79575720
rcu: rcu_preempt kthread starved for 9670 jiffies! g18669 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:25888 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
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: 5275 Comm: kworker/1:3 Not tainted 6.12.0-rc2-syzkaller-00205-g1d227fcc7222 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_power_efficient neigh_periodic_work
RIP: 0010:__siphash_unaligned+0x153/0x3d0 lib/siphash.c:89
Code: c4 4c 01 e3 49 c1 c4 10 49 31 dc 4d 01 e7 49 c1 c4 15 4c 01 f3 49 c1 c6 11 49 31 de 48 c1 c3 20 4d 31 fc 4d 01 f7 49 c1 c6 0d <4d> 31 fe 49 c1 c7 20 4c 01 e3 49 c1 c4 10 49 31 dc 4d 01 e7 49 c1
RSP: 0018:ffffc90000a17368 EFLAGS: 00000282
RAX: 0000000000000000 RBX: 61308e8de4f2f620 RCX: ffff8880600cbc00
RDX: ffffc90000a17838 RSI: dffffc0000000000 RDI: 0000000000000008
RBP: ffffc90000a17847 R08: ffffffff89905fa9 R09: ffffffff89905c60
R10: 0000000000000002 R11: ffff8880600cbc00 R12: 07694eb1e8a168f5
R13: ffffc90000a17840 R14: e1c0aa54ed3e10fc R15: d91c7da5d18f2757
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5b00406f98 CR3: 000000000e734000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
siphash include/linux/siphash.h:86 [inline]
__flow_hash_from_keys net/core/flow_dissector.c:1796 [inline]
flow_hash_from_keys_seed+0x409/0x7d0 net/core/flow_dissector.c:1814
rt6_multipath_hash+0x12ac/0x2610
ip6_route_input+0x9d8/0xd90 net/ipv6/route.c:2594
ip6_rcv_finish+0x144/0x180 net/ipv6/ip6_input.c:77
ip_sabotage_in+0x203/0x290 net/bridge/br_netfilter_hooks.c:1018
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312
__netif_receive_skb_one_core net/core/dev.c:5666 [inline]
__netif_receive_skb+0x1ea/0x650 net/core/dev.c:5779
netif_receive_skb_internal net/core/dev.c:5865 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5924
NF_HOOK+0x9e/0x400 include/linux/netfilter.h:314
br_handle_frame_finish+0x18ed/0x1fe0
br_nf_hook_thresh+0x472/0x590
br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x379/0x770 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:277 [inline]
br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424
__netif_receive_skb_core+0x13e8/0x4570 net/core/dev.c:5560
__netif_receive_skb_one_core net/core/dev.c:5664 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5779
process_backlog+0x662/0x15b0 net/core/dev.c:6111
__napi_poll+0xcb/0x490 net/core/dev.c:6775
napi_poll net/core/dev.c:6844 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6966
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
do_softirq+0x11b/0x1e0 kernel/softirq.c:455
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
neigh_periodic_work+0xb35/0xd50 net/core/neighbour.c:1019
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
net_ratelimit: 18564 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, 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 veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
net_ratelimit: 20789 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, 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 veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, 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 veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:fa:b3:09:5a:e1:45, vlan:0)