rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P19303/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=113629, q=1289187 ncpus=2)
task:syz.2.5563 state:R running task stack:23824 pid:19303 tgid:19302 ppid:18168 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:instrument_write include/linux/instrumented.h:40 [inline]
RIP: 0010:___set_bit include/asm-generic/bitops/instrumented-non-atomic.h:28 [inline]
RIP: 0010:__update_page_owner_handle mm/page_owner.c:254 [inline]
RIP: 0010:__set_page_owner+0x297/0x800 mm/page_owner.c:325
Code: 46 10 49 83 c6 20 ba 10 00 00 00 4c 89 f7 48 8b 74 24 50 e8 ab c9 b4 09 4c 89 ff be 08 00 00 00 e8 ae 63 f5 ff 49 0f ba 2f 00 <4c> 89 ff be 08 00 00 00 e8 9c 63 f5 ff 49 0f ba 2f 01 48 b8 00 00
RSP: 0018:ffffc90011936a80 EFLAGS: 00000257
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff82090542
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88801dce2220
RBP: ffffc90011936b68 R08: ffff88801dce2227 R09: 1ffff11003b9c444
R10: dffffc0000000000 R11: ffffed1003b9c445 R12: 0000000000000000
R13: 0000000000000001 R14: ffff88801dce2248 R15: ffff88801dce2220
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537
prep_new_page mm/page_alloc.c:1545 [inline]
get_page_from_freelist+0x3045/0x3190 mm/page_alloc.c:3457
__alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4733
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
folio_alloc_mpol_noprof+0x36/0x50 mm/mempolicy.c:2283
shmem_alloc_folio mm/shmem.c:1774 [inline]
shmem_alloc_and_add_folio+0x49b/0x13d0 mm/shmem.c:1813
shmem_get_folio_gfp+0x5a9/0x20a0 mm/shmem.c:2335
shmem_fault+0x253/0x6f0 mm/shmem.c:2536
__do_fault+0x137/0x460 mm/memory.c:4876
do_read_fault mm/memory.c:5282 [inline]
do_fault mm/memory.c:5416 [inline]
do_pte_missing mm/memory.c:3965 [inline]
handle_pte_fault+0x2d1c/0x6800 mm/memory.c:5751
__handle_mm_fault mm/memory.c:5894 [inline]
handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6062
faultin_page mm/gup.c:1187 [inline]
__get_user_pages+0x1b16/0x48d0 mm/gup.c:1485
populate_vma_page_range+0x264/0x330 mm/gup.c:1923
__mm_populate+0x27a/0x460 mm/gup.c:2026
mm_populate include/linux/mm.h:3371 [inline]
vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:593
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: 0033:0x7f22b217df39
RSP: 002b:00007f22b2ff8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f22b2335f80 RCX: 00007f22b217df39
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f22b21f0216 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f22b2335f80 R15: 00007fffb9c92c08
rcu: rcu_preempt kthread starved for 9960 jiffies! g113629 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:24912 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+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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: 5313 Comm: kworker/1:8 Not tainted 6.11.0-syzkaller-11558-g075dbe9f6e3c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_power_efficient neigh_periodic_work
RIP: 0010:unwind_next_frame+0x1769/0x22d0 arch/x86/kernel/unwind_orc.c:648
Code: bf 06 48 01 c3 4c 89 ef 48 89 de 4c 89 fa eb 45 48 8b 54 24 10 48 8d 5a 02 48 83 c2 03 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 <0f> 85 81 0a 00 00 48 89 d0 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 93
RSP: 0018:ffffc90000a17c70 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff90a6fabe RCX: 0000000000000000
RDX: ffffffff90a6fabf RSI: 0000000000000001 RDI: ffffc90000a17da0
RBP: dffffc0000000000 R08: ffffc90000a17d9f R09: ffffc90000a17d90
R10: dffffc0000000000 R11: fffff52000142fb4 R12: ffffc90000a19000
R13: ffffc90000a17d40 R14: ffffffff81fe2b8f R15: ffffc90000a17d90
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe3950190c CR3: 0000000060c40000 CR4: 0000000000350ef0
Call Trace:
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 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:579
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:230 [inline]
slab_free_hook mm/slub.c:2343 [inline]
slab_free mm/slub.c:4580 [inline]
kmem_cache_free+0x1a2/0x420 mm/slub.c:4682
nft_synproxy_eval_v4+0x3d2/0x610 net/netfilter/nft_synproxy.c:60
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+0x4af/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+0xc5/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312
NF_HOOK+0x3a6/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5662 [inline]
__netif_receive_skb+0x2bf/0x650 net/core/dev.c:5775
process_backlog+0x662/0x15b0 net/core/dev.c:6107
__napi_poll+0xcd/0x490 net/core/dev.c:6771
napi_poll net/core/dev.c:6840 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6962
handle_softirqs+0x2c7/0x980 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+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244