rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P2/1:b..l.. P969/1:b..l.. P5602/3:b..l.. P4985/1:b..l.. P12321/1:b..l..
rcu: 	(detected by 0, t=10502 jiffies, g=122385, q=1356 ncpus=1)
task:udevd           state:R  running task     stack:26344 pid:12321 tgid:12321 ppid:4985   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x125e/0x6990 kernel/sched/core.c:7382
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:7662
 irqentry_exit_cond_resched arch/x86/include/asm/fred.h:105 [inline]
 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:453 [inline]
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
 irqentry_exit+0x33f/0xab0 kernel/entry/common.c:154
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5947
Code: 05 0f 21 ce 13 83 f8 07 0f 87 da 00 00 00 48 0f a3 05 1e 15 80 10 0f 82 c9 02 00 00 8b 35 de 44 80 10 85 f6 0f 85 c7 00 00 00 <48> 8b 44 24 30 65 48 2b 05 ad 20 ce 13 0f 85 09 03 00 00 48 83 c4
RSP: 0018:ffffc90003faf0e8 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000200
RDX: 0000000000000000 RSI: ffffffff8e5f4837 RDI: ffffffff8c831680
RBP: ffffffff8ffeb420 R08: 00000000cf993a7f R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
 unwind_next_frame+0xd1/0x2090 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 save_stack+0x162/0x1e0 mm/page_owner.c:183
 __reset_page_owner+0x85/0x230 mm/page_owner.c:338
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1401 [inline]
 __free_frozen_pages+0x7b4/0x1110 mm/page_alloc.c:2952
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5531 [inline]
 __kmalloc_noprof+0x32f/0x840 mm/slub.c:5556
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 tomoyo_encode2+0xfb/0x3c0 security/tomoyo/realpath.c:45
 tomoyo_encode+0x29/0x50 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x18c/0x690 security/tomoyo/realpath.c:283
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_number_perm+0x23c/0x580 security/tomoyo/file.c:728
 tomoyo_path_mknod+0x164/0x190 security/tomoyo/tomoyo.c:252
 security_path_mknod+0x161/0x300 security/security.c:1431
 may_o_create+0x30/0x3a0 fs/namei.c:4319
 lookup_open+0x105c/0x1940 fs/namei.c:4514
 open_last_lookups fs/namei.c:4768 [inline]
 path_openat+0xe75/0x23f0 fs/namei.c:5007
 do_file_open+0x20e/0x430 fs/namei.c:5039
 do_sys_openat2+0x163/0x1d0 fs/open.c:1442
 do_sys_open fs/open.c:1448 [inline]
 __do_sys_openat fs/open.c:1464 [inline]
 __se_sys_openat fs/open.c:1459 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1459
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5a306a7407
RSP: 002b:00007ffd29497d80 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5a30d4c880 RCX: 00007f5a306a7407
RDX: 00000000000a0241 RSI: 00007ffd29498a40 RDI: ffffffffffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000124 R11: 0000000000000202 R12: 0000555c41b5f4c0
R13: 00007ffd29498a40 R14: 00007ffd29498640 R15: 00007ffd29498240
 </TASK>
task:udevd           state:R  running task     stack:23248 pid:4985  tgid:4985  ppid:1      task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x125e/0x6990 kernel/sched/core.c:7382
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:7662
 irqentry_exit_cond_resched arch/x86/include/asm/fred.h:105 [inline]
 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:453 [inline]
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
 irqentry_exit+0x33f/0xab0 kernel/entry/common.c:154
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5947
Code: 05 0f 21 ce 13 83 f8 07 0f 87 da 00 00 00 48 0f a3 05 1e 15 80 10 0f 82 c9 02 00 00 8b 35 de 44 80 10 85 f6 0f 85 c7 00 00 00 <48> 8b 44 24 30 65 48 2b 05 ad 20 ce 13 0f 85 09 03 00 00 48 83 c4
RSP: 0018:ffffc90007397500 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000200
RDX: 0000000000000000 RSI: ffffffff8e5f4837 RDI: ffffffff8c831680
RBP: ffffffff8ffeb420 R08: 0000000041304f1f R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
 unwind_next_frame+0xd1/0x2090 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 save_stack+0x162/0x1e0 mm/page_owner.c:183
 __reset_page_owner+0x85/0x230 mm/page_owner.c:338
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1401 [inline]
 __free_frozen_pages+0x7b4/0x1110 mm/page_alloc.c:2952
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5531 [inline]
 __kmalloc_noprof+0x32f/0x840 mm/slub.c:5556
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 tomoyo_realpath_from_path+0xb6/0x690 security/tomoyo/realpath.c:251
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x276/0x460 security/tomoyo/file.c:827
 security_inode_getattr+0x116/0x280 security/security.c:1917
 vfs_getattr fs/stat.c:263 [inline]
 vfs_statx_path fs/stat.c:303 [inline]
 vfs_statx+0x11f/0x3f0 fs/stat.c:360
 vfs_fstatat+0x77/0xe0 fs/stat.c:377
 __do_sys_newfstatat+0x9d/0x120 fs/stat.c:542
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5a30711b0a
RSP: 002b:00007ffd294998e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000555c31872420 RCX: 00007f5a30711b0a
RDX: 00007ffd294998f0 RSI: 0000555c31860ef3 RDI: 00000000ffffff9c
RBP: 0000555c41d9f668 R08: 00063478c1c69200 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd294998f0 R14: 0000000000000000 R15: 00063478c1c69200
 </TASK>
task:sshd-session    state:R  running task     stack:25056 pid:5602  tgid:5602  ppid:5600   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x125e/0x6990 kernel/sched/core.c:7382
 preempt_schedule_common kernel/sched/core.c:7561 [inline]
 preempt_schedule+0x57/0xd0 kernel/sched/core.c:7585
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 __local_bh_enable_ip+0x106/0x120 kernel/softirq.c:480
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline]
 __dev_queue_xmit+0xa73/0x4a50 net/core/dev.c:5101
 dev_queue_xmit include/linux/netdevice.h:3483 [inline]
 neigh_hh_output include/net/neighbour.h:538 [inline]
 neigh_output include/net/neighbour.h:552 [inline]
 ip_finish_output2+0xfa4/0x2740 net/ipv4/ip_output.c:236
 __ip_finish_output.part.0+0x43b/0x6f0 net/ipv4/ip_output.c:314
 __ip_finish_output net/ipv4/ip_output.c:302 [inline]
 ip_finish_output net/ipv4/ip_output.c:324 [inline]
 NF_HOOK_COND include/linux/netfilter.h:314 [inline]
 ip_output+0x392/0xc00 net/ipv4/ip_output.c:437
 dst_output include/net/dst.h:471 [inline]
 ip_local_out+0x193/0x1f0 net/ipv4/ip_output.c:131
 __ip_queue_xmit+0x876/0x1f50 net/ipv4/ip_output.c:533
 __tcp_transmit_skb+0x34d9/0x4f00 net/ipv4/tcp_output.c:1772
 tcp_transmit_skb net/ipv4/tcp_output.c:1790 [inline]
 tcp_write_xmit+0x1133/0x84d0 net/ipv4/tcp_output.c:3126
 __tcp_push_pending_frames+0xaf/0x3b0 net/ipv4/tcp_output.c:3309
 tcp_push+0x225/0x700 net/ipv4/tcp.c:776
 tcp_sendmsg_locked+0x17a1/0x42d0 net/ipv4/tcp.c:1417
 tcp_sendmsg+0x2e/0x50 net/ipv4/tcp.c:1454
 inet_sendmsg+0xb9/0x140 net/ipv4/af_inet.c:864
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:818 [inline]
 sock_write_iter+0x4fd/0x5d0 net/socket.c:1269
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6af/0x1050 fs/read_write.c:687
 ksys_write+0x1f8/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f00e86a7407
RSP: 002b:00007fff8e249ca0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f00e8d56300 RCX: 00007f00e86a7407
RDX: 000000000000001c RSI: 0000557fc89920b0 RDI: 0000000000000004
RBP: 0000557fc8995be0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000557fc3d695d9
R13: 0000557fc3d7b190 R14: 0000557fc8995360 R15: 0000000000000003
 </TASK>
task:kworker/0:2     state:R  running task     stack:21816 pid:969   tgid:969   ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x125e/0x6990 kernel/sched/core.c:7382
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:7662
 irqentry_exit_cond_resched arch/x86/include/asm/fred.h:105 [inline]
 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:453 [inline]
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
 irqentry_exit+0x33f/0xab0 kernel/entry/common.c:154
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5947
Code: 05 0f 21 ce 13 83 f8 07 0f 87 da 00 00 00 48 0f a3 05 1e 15 80 10 0f 82 c9 02 00 00 8b 35 de 44 80 10 85 f6 0f 85 c7 00 00 00 <48> 8b 44 24 30 65 48 2b 05 ad 20 ce 13 0f 85 09 03 00 00 48 83 c4
RSP: 0018:ffffc90004b47170 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000200
RDX: 0000000000000000 RSI: ffffffff8e5f4837 RDI: ffffffff8c831680
RBP: ffffffff8ffeb420 R08: 00000000ba9b4057 R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
 unwind_next_frame+0xd1/0x2090 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 save_stack+0x162/0x1e0 mm/page_owner.c:183
 __reset_page_owner+0x85/0x230 mm/page_owner.c:338
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1401 [inline]
 __free_frozen_pages+0x7b4/0x1110 mm/page_alloc.c:2952
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4720 [inline]
 slab_alloc_node mm/slub.c:5033 [inline]
 __do_kmalloc_node mm/slub.c:5530 [inline]
 __kmalloc_noprof+0x2cc/0x840 mm/slub.c:5556
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 rh_call_control drivers/usb/core/hcd.c:486 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:817 [inline]
 usb_hcd_submit_urb+0x5e3/0x2140 drivers/usb/core/hcd.c:1538
 usb_submit_urb+0x827/0x19b0 drivers/usb/core/urb.c:594
 usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62
 usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
 usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167
 get_port_status drivers/usb/core/hub.c:610 [inline]
 hub_ext_port_status+0x14e/0x690 drivers/usb/core/hub.c:627
 usb_hub_port_status drivers/usb/core/hub.c:677 [inline]
 port_event drivers/usb/core/hub.c:5779 [inline]
 hub_event+0xc63/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3495
 process_scheduled_works kernel/workqueue.c:3578 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3659
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:kthreadd        state:R  running task     stack:25048 pid:2     tgid:2     ppid:0      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x125e/0x6990 kernel/sched/core.c:7382
 preempt_schedule_notrace+0x57/0xd0 kernel/sched/core.c:7633
 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
 rcu_is_watching+0x90/0xc0 kernel/rcu/tree.c:754
 rcu_read_unlock include/linux/rcupdate.h:878 [inline]
 page_ext_put+0x5d/0xd0 mm/page_ext.c:570
 __reset_page_owner+0x7b/0x230 mm/page_owner.c:330
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1401 [inline]
 __free_frozen_pages+0x7b4/0x1110 mm/page_alloc.c:2952
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4720 [inline]
 slab_alloc_node mm/slub.c:5033 [inline]
 kmem_cache_alloc_noprof+0x269/0x6a0 mm/slub.c:5047
 copy_signal kernel/fork.c:1754 [inline]
 copy_process+0x30f5/0x84c0 kernel/fork.c:2316
 kernel_clone+0x176/0x9d0 kernel/fork.c:2783
 kernel_thread+0xdb/0x120 kernel/fork.c:2844
 create_kthread kernel/kthread.c:459 [inline]
 kthreadd+0x498/0x7a0 kernel/kthread.c:817
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: rcu_preempt kthread starved for 10502 jiffies! g122385 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->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:27544 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x125e/0x6990 kernel/sched/core.c:7382
 __schedule_loop kernel/sched/core.c:7459 [inline]
 schedule+0xdd/0x2c0 kernel/sched/core.c:7474
 schedule_timeout+0x127/0x280 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1a9/0x930 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x179/0x260 kernel/rcu/tree.c:2330
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 3224 Comm: kworker/R-bat_e Tainted: G                   Y syzkaller #0 PREEMPT(full) 
Tainted: [Y]=FORCED_BIND
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
Workqueue: bat_events batadv_tt_purge
RIP: 0010:__nf_ct_ext_exist include/net/netfilter/nf_conntrack_extend.h:46 [inline]
RIP: 0010:nf_ct_ext_find include/net/netfilter/nf_conntrack_extend.h:58 [inline]
RIP: 0010:nfct_help include/net/netfilter/nf_conntrack_helper.h:134 [inline]
RIP: 0010:nf_confirm+0x14a/0x11f0 net/netfilter/nf_conntrack_proto.c:154
Code: e9 0e 00 00 4d 8b b5 f0 00 00 00 4d 85 f6 0f 84 90 0c 00 00 e8 67 fc 0c f8 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 55 0c 00 00 41 0f b6 06 31 ff 89 c6
RSP: 0018:ffffc900000072a0 EFLAGS: 00000a02
RAX: dffffc0000000000 RBX: ffff8881f27c1c80 RCX: 0000000000000101
RDX: 1ffff1100e91f020 RSI: ffffffff8a011ea9 RDI: ffff8880747f1d70
RBP: 1ffff92000000e57 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880747f1c83
R13: ffff8880747f1c80 R14: ffff8880748f8100 R15: ffff8881f27c1ce8
FS:  0000000000000000(0000) GS:ffff8881224ac000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeb0f12038 CR3: 00000000282fd000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
 nf_hook_slow+0xbf/0x220 net/netfilter/core.c:633
 nf_hook include/linux/netfilter.h:280 [inline]
 NF_HOOK_COND include/linux/netfilter.h:313 [inline]
 ip_output+0x6fa/0xc00 net/ipv4/ip_output.c:437
 dst_output include/net/dst.h:471 [inline]
 ip_local_out+0x193/0x1f0 net/ipv4/ip_output.c:131
 synproxy_send_tcp.isra.0+0x4b4/0x6d0 net/netfilter/nf_synproxy_core.c:442
 synproxy_send_client_synack+0x6fc/0x990 net/netfilter/nf_synproxy_core.c:487
 nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
 nft_synproxy_do_eval+0xa61/0xd20 net/netfilter/nft_synproxy.c:142
 expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
 nft_do_chain+0x2e5/0x19e0 net/netfilter/nf_tables_core.c:285
 nft_do_chain_inet+0xf3/0x400 net/netfilter/nft_chain_filter.c:162
 nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
 nf_hook_slow+0xbf/0x220 net/netfilter/core.c:633
 nf_hook.constprop.0+0x2a6/0x750 include/linux/netfilter.h:280
 NF_HOOK include/linux/netfilter.h:323 [inline]
 ip_local_deliver+0x16c/0x200 net/ipv4/ip_input.c:262
 dst_input include/net/dst.h:481 [inline]
 ip_rcv_finish net/ipv4/ip_input.c:492 [inline]
 NF_HOOK include/linux/netfilter.h:325 [inline]
 NF_HOOK include/linux/netfilter.h:319 [inline]
 ip_rcv+0x33a/0x3c0 net/ipv4/ip_input.c:612
 __netif_receive_skb_one_core+0x197/0x1e0 net/core/dev.c:6405
 __netif_receive_skb+0x1f/0x120 net/core/dev.c:6518
 process_backlog+0x487/0x1600 net/core/dev.c:6869
 __napi_poll.constprop.0+0xaf/0x450 net/core/dev.c:7938
 napi_poll net/core/dev.c:8001 [inline]
 net_rx_action+0xa40/0xf20 net/core/dev.c:8158
 handle_softirqs+0x216/0xa20 kernel/softirq.c:669
 do_softirq kernel/softirq.c:569 [inline]
 do_softirq+0xaf/0xf0 kernel/softirq.c:556
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0xff/0x120 kernel/softirq.c:473
 spin_unlock_bh include/linux/spinlock.h:407 [inline]
 batadv_tt_local_purge+0x236/0x3b0 net/batman-adv/translation-table.c:1798
 batadv_tt_purge+0x8b/0xc00 net/batman-adv/translation-table.c:4269
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3495
 process_scheduled_works kernel/workqueue.c:3578 [inline]
 rescuer_thread+0x951/0x16e0 kernel/workqueue.c:3803
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>