rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10793/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=27117, q=333 ncpus=2)
task:syz.3.1472 state:R running task stack:20880 pid:10793 tgid:10792 ppid:5838 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
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:stack_trace_consume_entry+0x4b/0x280 kernel/stacktrace.c:86
Code: 4f 10 4d 89 cf 49 c1 ef 03 41 0f b6 04 17 84 c0 0f 85 06 01 00 00 44 8b 43 10 48 8d 6b 08 49 89 ec 49 c1 ec 03 41 0f b6 04 14 <84> c0 0f 85 1a 01 00 00 44 3b 45 00 73 3c 48 8d 7b 0c 49 89 fd 49
RSP: 0018:ffffc900033760d0 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffffc90003376200 RCX: ffffffff91792000
RDX: dffffc0000000000 RSI: ffffffff8205fdca RDI: ffffc90003376200
RBP: ffffc90003376208 R08: 0000000000000004 R09: ffffc90003376210
R10: ffffc90003376170 R11: ffffffff818b4af0 R12: 1ffff9200066ec41
R13: ffffffff818b4af0 R14: ffffc90003376200 R15: 1ffff9200066ec42
arch_stack_walk+0x10e/0x150 arch/x86/kernel/stacktrace.c:27
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:1127 [inline]
free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2659
discard_slab mm/slub.c:2688 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3157
put_cpu_partial+0x17c/0x250 mm/slub.c:3232
__slab_free+0x290/0x380 mm/slub.c:4483
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_kmalloc+0x23/0xb0 mm/kasan/common.c:385
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4298 [inline]
__kmalloc_noprof+0x285/0x4c0 mm/slub.c:4310
kmalloc_noprof include/linux/slab.h:905 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
kobject_get_path+0xb8/0x230 lib/kobject.c:161
kobject_uevent_env+0x2a5/0x8e0 lib/kobject_uevent.c:545
__kobject_del+0xd3/0x310 lib/kobject.c:601
kobject_cleanup lib/kobject.c:680 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x245/0x480 lib/kobject.c:737
net_rx_queue_update_kobjects+0x52b/0x5b0 net/core/net-sysfs.c:1178
remove_queue_kobjects net/core/net-sysfs.c:1953 [inline]
netdev_unregister_kobject+0x104/0x250 net/core/net-sysfs.c:2107
unregister_netdevice_many_notify+0x1859/0x1da0 net/core/dev.c:11581
unregister_netdevice_many net/core/dev.c:11609 [inline]
unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11481
unregister_netdevice include/linux/netdevice.h:3192 [inline]
vxcan_newlink+0x44e/0x510 drivers/net/can/vxcan.c:247
rtnl_newlink_create+0x2ee/0xa40 net/core/rtnetlink.c:3786
__rtnl_newlink net/core/rtnetlink.c:3897 [inline]
rtnl_newlink+0x1c7e/0x2210 net/core/rtnetlink.c:4012
rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6922
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:726
____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583
___sys_sendmsg net/socket.c:2637 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2669
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: 0033:0x7f398fb85d29
RSP: 002b:00007f39909c2038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f398fd75fa0 RCX: 00007f398fb85d29
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000009
RBP: 00007f398fc01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f398fd75fa0 R15: 00007ffd269dc1e8
rcu: rcu_preempt kthread starved for 9451 jiffies! g27117 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:24368 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
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:
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.13.0-rc7-syzkaller-00118-gd640627663bf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__in6_dev_get include/net/addrconf.h:330 [inline]
RIP: 0010:ipv6_chk_mcast_addr+0x11e/0x840 net/ipv6/mcast.c:1023
Code: b8 58 53 01 89 c5 31 ff 89 c6 e8 bd cd 29 f7 85 ed 74 10 e8 f4 fe 24 ff 84 c0 74 0e e8 6b c9 29 f7 eb 24 e8 64 c9 29 f7 eb 1d 3d 28 0e f7 89 c5 31 ff 89 c6 e8 92 cd 29 f7 85 ed 0f 84 0c 03
RSP: 0018:ffffc90000156838 EFLAGS: 00000246
RAX: 0000000000000100 RBX: ffff888023dd2000 RCX: ffff88801cacda00
RDX: ffff88801cacda00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff899ab816 R09: 1ffffffff2854b10
R10: dffffc0000000000 R11: fffffbfff2854b11 R12: dffffc0000000000
R13: ffff88818f6f5dc0 R14: ffffffff8a75b81e R15: ffff8880a4b8d528
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3024a00218 CR3: 000000007fb6a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ip6_mc_input+0x500/0xc30 net/ipv6/ip6_input.c:521
ip_sabotage_in+0x203/0x290 net/bridge/br_netfilter_hooks.c:1021
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:5704 [inline]
__netif_receive_skb+0x1ea/0x650 net/core/dev.c:5817
netif_receive_skb_internal net/core/dev.c:5903 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5962
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+0x14eb/0x4690 net/core/dev.c:5598
__netif_receive_skb_one_core net/core/dev.c:5702 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5817
process_backlog+0x662/0x15b0 net/core/dev.c:6149
__napi_poll+0xcb/0x490 net/core/dev.c:6902
napi_poll net/core/dev.c:6971 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:7093
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
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