bridge0: port 2(bridge_slave_1) entered forwarding state
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6257/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=10821, q=1635741 ncpus=2)
task:syz.0.329 state:R running task stack:26456 pid:6257 tgid:6256 ppid:5235 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6997
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+0x114/0x280 kernel/stacktrace.c:94
Code: 48 89 d8 48 c1 e8 03 80 3c 10 00 74 1a 4d 89 cf 48 89 df 49 89 d6 49 89 f5 e8 88 fd 7d 00 4d 89 f9 4c 89 ee 4c 89 f2 48 89 33 <41> 8b 19 41 0f b6 04 14 84 c0 0f 85 34 01 00 00 3b 5d 00 0f 92 c0
RSP: 0018:ffffc90017aaf4f0 EFLAGS: 00000246
RAX: 1ffff92002f55eec RBX: ffffc90017aaf760 RCX: ffffffff917b9000
RDX: dffffc0000000000 RSI: ffffffff8986af80 RDI: ffffc90017aaf62c
RBP: ffffc90017aaf628 R08: 000000000000000c R09: ffffc90017aaf630
R10: ffffc90017aaf590 R11: ffffffff81808f50 R12: 1ffff92002f55ec5
R13: 1ffff92002f55ec5 R14: 000000000000000d R15: 1ffff92002f55ec6
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:1108 [inline]
free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638
discard_slab mm/slub.c:2678 [inline]
__put_partials+0xeb/0x130 mm/slub.c:3146
put_cpu_partial+0x17c/0x250 mm/slub.c:3221
__slab_free+0x2ea/0x3d0 mm/slub.c:4450
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:4086 [inline]
slab_alloc_node mm/slub.c:4135 [inline]
__kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4291
kmalloc_noprof include/linux/slab.h:878 [inline]
kzalloc_noprof include/linux/slab.h:1014 [inline]
ref_tracker_alloc+0x14b/0x490 lib/ref_tracker.c:203
__netns_tracker_alloc include/net/net_namespace.h:331 [inline]
netns_tracker_alloc include/net/net_namespace.h:340 [inline]
get_net_track include/net/net_namespace.h:357 [inline]
sk_alloc+0x1c8/0x370 net/core/sock.c:2229
unix_create1+0xb4/0x7a0
unix_create+0x14e/0x200 net/unix/af_unix.c:1094
__sock_create+0x490/0x920 net/socket.c:1576
sock_create net/socket.c:1627 [inline]
__sys_socketpair+0x33e/0x720 net/socket.c:1778
__do_sys_socketpair net/socket.c:1827 [inline]
__se_sys_socketpair net/socket.c:1824 [inline]
__x64_sys_socketpair+0x9b/0xb0 net/socket.c:1824
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: 0033:0x7f507e57dff9
RSP: 002b:00007f507f3e4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f507e735f80 RCX: 00007f507e57dff9
RDX: 0000000000000000 RSI: 0020000000000001 RDI: 0000000000000001
RBP: 00007f507e5f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000100 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f507e735f80 R15: 00007fff1119dd68
rcu: rcu_preempt kthread starved for 10047 jiffies! g10821 f0x2 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:25952 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6767
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:
CPU: 1 UID: 0 PID: 5282 Comm: kworker/1:4 Not tainted 6.12.0-rc1-syzkaller-00229-gd521db38f339 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5829
Code: 2b 00 74 08 4c 89 f7 e8 aa 46 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:ffffc90000a17fe0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000143008 RCX: 0daa14940ccc5c00
RDX: dffffc0000000000 RSI: ffffffff8c0adc40 RDI: ffffffff8c60f860
RBP: ffffc90000a18138 R08: ffffffff942c5807 R09: 1ffffffff2858b00
R10: dffffc0000000000 R11: fffffbfff2858b01 R12: 1ffff92000143004
R13: dffffc0000000000 R14: ffffc90000a18040 R15: 0000000000000246
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000e734000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
net_generic include/net/netns/generic.h:45 [inline]
synproxy_pernet+0x62/0x270 include/net/netfilter/nf_synproxy.h:32
nft_synproxy_eval_v4+0x124/0x610 net/netfilter/nft_synproxy.c:53
nft_synproxy_do_eval+0x362/0xa60 net/netfilter/nft_synproxy.c:141
expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
nft_do_chain_inet+0x418/0x6b0 net/netfilter/nft_chain_filter.c:161
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
NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5666 [inline]
__netif_receive_skb+0x2bf/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
spin_unlock_bh include/linux/spinlock.h:396 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850
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