------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
5.15.179-syzkaller #0 Not tainted
------------------------------------------------------
syz.0.407/6245 is trying to acquire lock:
ffffffff8c9fbd38 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138

but task is already holding lock:
ffff8880b8e28098 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x772/0xeb0 kernel/time/timer.c:1043

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&base->lock){-.-.}-{2:2}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       lock_timer_base+0x120/0x260 kernel/time/timer.c:946
       __mod_timer+0x1d6/0xeb0 kernel/time/timer.c:1019
       queue_delayed_work_on+0x156/0x250 kernel/workqueue.c:1715
       psi_enqueue kernel/sched/stats.h:102 [inline]
       enqueue_task+0x28d/0x2e0 kernel/sched/core.c:1972
       activate_task kernel/sched/core.c:2004 [inline]
       wake_up_new_task+0x515/0xb60 kernel/sched/core.c:4521
       kernel_clone+0x44e/0x960 kernel/fork.c:2627
       kernel_thread+0x12e/0x1a0 kernel/fork.c:2655
       rest_init+0x21/0x330 init/main.c:706
       start_kernel+0x48c/0x540 init/main.c:1140
       secondary_startup_64_no_verify+0xb1/0xbb

-> #2 (&rq->__lock){-.-.}-{2:2}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       _raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:368
       raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
       raw_spin_rq_lock kernel/sched/sched.h:1326 [inline]
       rq_lock kernel/sched/sched.h:1621 [inline]
       task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11499
       sched_cgroup_fork+0x2d3/0x330 kernel/sched/core.c:4465
       copy_process+0x224a/0x3ef0 kernel/fork.c:2319
       kernel_clone+0x210/0x960 kernel/fork.c:2603
       kernel_thread+0x12e/0x1a0 kernel/fork.c:2655
       rest_init+0x21/0x330 init/main.c:706
       start_kernel+0x48c/0x540 init/main.c:1140
       secondary_startup_64_no_verify+0xb1/0xbb

-> #1 (&p->pi_lock){-.-.}-{2:2}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       try_to_wake_up+0xae/0x12c0 kernel/sched/core.c:4029
       up+0x6e/0x90 kernel/locking/semaphore.c:190
       __up_console_sem+0x11a/0x1e0 kernel/printk/printk.c:256
       console_unlock+0x1145/0x12b0 kernel/printk/printk.c:2760
       vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
       dev_vprintk_emit+0x2aa/0x330 drivers/base/core.c:4638
       dev_printk_emit+0xd9/0x120 drivers/base/core.c:4649
       _dev_warn+0x11e/0x170 drivers/base/core.c:4705
       firmware_fallback_sysfs+0x681/0xc90 drivers/base/firmware_loader/fallback.c:654
       _request_firmware+0xc72/0x12c0 drivers/base/firmware_loader/main.c:876
       request_firmware_work_func+0x126/0x270 drivers/base/firmware_loader/main.c:1127
       process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
       worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
       kthread+0x3f6/0x4f0 kernel/kthread.c:334
       ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

-> #0 ((console_sem).lock){-.-.}-{2:2}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
       __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
       __down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:239
       console_trylock kernel/printk/printk.c:2575 [inline]
       console_trylock_spinning+0x8a/0x3f0 kernel/printk/printk.c:1867
       vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
       _printk+0xd1/0x120 kernel/printk/printk.c:2299
       report_bug+0x1e5/0x2e0 lib/bug.c:195
       handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
       exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
       asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:604
       copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:-1
       bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
       ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
       bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
       bpf_prog_690f12e098ef46de+0x32/0xa20
       bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
       __bpf_prog_run include/linux/filter.h:628 [inline]
       bpf_prog_run include/linux/filter.h:635 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
       bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1916
       trace_timer_start include/trace/events/timer.h:52 [inline]
       enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
       internal_add_timer kernel/time/timer.c:611 [inline]
       __mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
       sk_reset_timer+0x1f/0xb0 net/core/sock.c:3139
       tcp_event_new_data_sent+0x203/0x360 net/ipv4/tcp_output.c:81
       tcp_write_xmit+0x19d1/0x6650 net/ipv4/tcp_output.c:2714
       __tcp_push_pending_frames+0x90/0x250 net/ipv4/tcp_output.c:2892
       tcp_push_pending_frames include/net/tcp.h:1916 [inline]
       tcp_data_snd_check net/ipv4/tcp_input.c:5556 [inline]
       tcp_rcv_established+0xfad/0x1e30 net/ipv4/tcp_input.c:5967
       tcp_v4_do_rcv+0x423/0x970 net/ipv4/tcp_ipv4.c:1731
       tcp_v4_rcv+0x27be/0x2de0 net/ipv4/tcp_ipv4.c:2143
       ip_protocol_deliver_rcu+0x386/0x740 net/ipv4/ip_input.c:204
       ip_local_deliver_finish+0x1db/0x320 net/ipv4/ip_input.c:231
       NF_HOOK+0x364/0x410 include/linux/netfilter.h:302
       dst_input include/net/dst.h:462 [inline]
       ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline]
       ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline]
       ip_sublist_rcv+0xb0f/0xe50 net/ipv4/ip_input.c:636
       ip_list_rcv+0x427/0x470 net/ipv4/ip_input.c:671
       __netif_receive_skb_list_ptype net/core/dev.c:5567 [inline]
       __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5615
       __netif_receive_skb_list net/core/dev.c:5667 [inline]
       netif_receive_skb_list_internal+0x9ed/0xdf0 net/core/dev.c:5758
       gro_normal_list net/core/dev.c:5912 [inline]
       napi_complete_done+0x352/0x820 net/core/dev.c:6650
       virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline]
       virtnet_poll+0xbd1/0x1260 drivers/net/virtio_net.c:1592
       __napi_poll+0xc7/0x440 net/core/dev.c:7074
       napi_poll net/core/dev.c:7141 [inline]
       net_rx_action+0x617/0xda0 net/core/dev.c:7231
       handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
       __do_softirq kernel/softirq.c:592 [inline]
       invoke_softirq kernel/softirq.c:432 [inline]
       __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
       irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
       common_interrupt+0xb3/0xd0 arch/x86/kernel/irq.c:240
       asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
       save_stack+0x86/0x1e0 mm/page_owner.c:103
       __reset_page_owner+0x52/0x180 mm/page_owner.c:140
       reset_page_owner include/linux/page_owner.h:24 [inline]
       free_pages_prepare mm/page_alloc.c:1340 [inline]
       free_pcp_prepare mm/page_alloc.c:1391 [inline]
       free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
       free_unref_page_list+0x1f7/0x8e0 mm/page_alloc.c:3433
       release_pages+0x1bb9/0x1f40 mm/swap.c:963
       tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
       tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
       tlb_flush_mmu mm/mmu_gather.c:247 [inline]
       tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:338
       exit_mmap+0x3cd/0x620 mm/mmap.c:3206
       __mmput+0x112/0x3b0 kernel/fork.c:1127
       exit_mm+0x688/0x7f0 kernel/exit.c:550
       do_exit+0x626/0x2480 kernel/exit.c:861
       do_group_exit+0x144/0x310 kernel/exit.c:996
       get_signal+0xc66/0x14e0 kernel/signal.c:2900
       arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
       handle_signal_work kernel/entry/common.c:154 [inline]
       exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
       exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
       __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
       syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
       do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

other info that might help us debug this:

Chain exists of:
  (console_sem).lock --> &rq->__lock --> &base->lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&base->lock);
                               lock(&rq->__lock);
                               lock(&base->lock);
  lock((console_sem).lock);

 *** DEADLOCK ***

5 locks held by syz.0.407/6245:
 #0: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30 include/linux/rcupdate.h:312
 #1: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
 #2: ffff8880738718a0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x271f/0x2de0 net/ipv4/tcp_ipv4.c:2137
 #3: ffff8880b8e28098 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x772/0xeb0 kernel/time/timer.c:1043
 #4: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311

stack backtrace:
CPU: 0 PID: 6245 Comm: syz.0.407 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133
 check_prev_add kernel/locking/lockdep.c:3053 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
 down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
 __down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:239
 console_trylock kernel/printk/printk.c:2575 [inline]
 console_trylock_spinning+0x8a/0x3f0 kernel/printk/printk.c:1867
 vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
 _printk+0xd1/0x120 kernel/printk/printk.c:2299
 report_bug+0x1e5/0x2e0 lib/bug.c:195
 handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
 asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:604
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 9b b0 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 84 b0 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000006908 EFLAGS: 00010046
RAX: ffffffff81aaec3c RBX: 0000000000000000 RCX: ffff88805b888000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaeb4d R09: fffffbfff2131e19
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000006968
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_690f12e098ef46de+0x32/0xa20
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1916
 trace_timer_start include/trace/events/timer.h:52 [inline]
 enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
 internal_add_timer kernel/time/timer.c:611 [inline]
 __mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
 sk_reset_timer+0x1f/0xb0 net/core/sock.c:3139
 tcp_event_new_data_sent+0x203/0x360 net/ipv4/tcp_output.c:81
 tcp_write_xmit+0x19d1/0x6650 net/ipv4/tcp_output.c:2714
 __tcp_push_pending_frames+0x90/0x250 net/ipv4/tcp_output.c:2892
 tcp_push_pending_frames include/net/tcp.h:1916 [inline]
 tcp_data_snd_check net/ipv4/tcp_input.c:5556 [inline]
 tcp_rcv_established+0xfad/0x1e30 net/ipv4/tcp_input.c:5967
 tcp_v4_do_rcv+0x423/0x970 net/ipv4/tcp_ipv4.c:1731
 tcp_v4_rcv+0x27be/0x2de0 net/ipv4/tcp_ipv4.c:2143
 ip_protocol_deliver_rcu+0x386/0x740 net/ipv4/ip_input.c:204
 ip_local_deliver_finish+0x1db/0x320 net/ipv4/ip_input.c:231
 NF_HOOK+0x364/0x410 include/linux/netfilter.h:302
 dst_input include/net/dst.h:462 [inline]
 ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline]
 ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline]
 ip_sublist_rcv+0xb0f/0xe50 net/ipv4/ip_input.c:636
 ip_list_rcv+0x427/0x470 net/ipv4/ip_input.c:671
 __netif_receive_skb_list_ptype net/core/dev.c:5567 [inline]
 __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5615
 __netif_receive_skb_list net/core/dev.c:5667 [inline]
 netif_receive_skb_list_internal+0x9ed/0xdf0 net/core/dev.c:5758
 gro_normal_list net/core/dev.c:5912 [inline]
 napi_complete_done+0x352/0x820 net/core/dev.c:6650
 virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline]
 virtnet_poll+0xbd1/0x1260 drivers/net/virtio_net.c:1592
 __napi_poll+0xc7/0x440 net/core/dev.c:7074
 napi_poll net/core/dev.c:7141 [inline]
 net_rx_action+0x617/0xda0 net/core/dev.c:7231
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 common_interrupt+0xb3/0xd0 arch/x86/kernel/irq.c:240
 </IRQ>
 <TASK>
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:save_stack+0x86/0x1e0 mm/page_owner.c:115
Code: 49 c1 ed 03 43 c7 44 25 00 f1 f1 f1 f1 43 c7 44 25 14 f3 f3 f3 f3 e8 59 62 af ff ba 80 00 00 00 48 89 df 31 f6 e8 4a 56 f9 ff <65> 48 8b 1d 42 35 31 7e 48 81 c3 80 05 00 00 49 89 df 49 c1 ef 03
RSP: 0018:ffffc90002dcf2c0 EFLAGS: 00000202
RAX: ffffc90002dcf300 RBX: ffffc90002dcf300 RCX: 0000000000000000
RDX: 0000000000000080 RSI: 0000000000000000 RDI: ffffc90002dcf380
RBP: ffffc90002dcf3e8 R08: dffffc0000000000 R09: ffffc90002dcf300
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920005b9e5c R14: dffffc0000000000 R15: ffffea0001fe4880
 __reset_page_owner+0x52/0x180 mm/page_owner.c:140
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
 free_unref_page_list+0x1f7/0x8e0 mm/page_alloc.c:3433
 release_pages+0x1bb9/0x1f40 mm/swap.c:963
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
 tlb_flush_mmu mm/mmu_gather.c:247 [inline]
 tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:338
 exit_mmap+0x3cd/0x620 mm/mmap.c:3206
 __mmput+0x112/0x3b0 kernel/fork.c:1127
 exit_mm+0x688/0x7f0 kernel/exit.c:550
 do_exit+0x626/0x2480 kernel/exit.c:861
 do_group_exit+0x144/0x310 kernel/exit.c:996
 get_signal+0xc66/0x14e0 kernel/signal.c:2900
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc33407d169
Code: Unable to access opcode bytes at RIP 0x7fc33407d13f.
RSP: 002b:00007fc331ec5038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: 000000000003fffd RBX: 00007fc334296080 RCX: 00007fc33407d169
RDX: 03fffffffffffeda RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007fc3340fe2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fc334296080 R15: 00007ffc023c5b38
 </TASK>
WARNING: CPU: 0 PID: 6245 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:-1
Modules linked in:
CPU: 0 PID: 6245 Comm: syz.0.407 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 9b b0 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 84 b0 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000006908 EFLAGS: 00010046
RAX: ffffffff81aaec3c RBX: 0000000000000000 RCX: ffff88805b888000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaeb4d R09: fffffbfff2131e19
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000006968
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200001000000 CR3: 000000000c88e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_690f12e098ef46de+0x32/0xa20
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1916
 trace_timer_start include/trace/events/timer.h:52 [inline]
 enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
 internal_add_timer kernel/time/timer.c:611 [inline]
 __mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
 sk_reset_timer+0x1f/0xb0 net/core/sock.c:3139
 tcp_event_new_data_sent+0x203/0x360 net/ipv4/tcp_output.c:81
 tcp_write_xmit+0x19d1/0x6650 net/ipv4/tcp_output.c:2714
 __tcp_push_pending_frames+0x90/0x250 net/ipv4/tcp_output.c:2892
 tcp_push_pending_frames include/net/tcp.h:1916 [inline]
 tcp_data_snd_check net/ipv4/tcp_input.c:5556 [inline]
 tcp_rcv_established+0xfad/0x1e30 net/ipv4/tcp_input.c:5967
 tcp_v4_do_rcv+0x423/0x970 net/ipv4/tcp_ipv4.c:1731
 tcp_v4_rcv+0x27be/0x2de0 net/ipv4/tcp_ipv4.c:2143
 ip_protocol_deliver_rcu+0x386/0x740 net/ipv4/ip_input.c:204
 ip_local_deliver_finish+0x1db/0x320 net/ipv4/ip_input.c:231
 NF_HOOK+0x364/0x410 include/linux/netfilter.h:302
 dst_input include/net/dst.h:462 [inline]
 ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline]
 ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline]
 ip_sublist_rcv+0xb0f/0xe50 net/ipv4/ip_input.c:636
 ip_list_rcv+0x427/0x470 net/ipv4/ip_input.c:671
 __netif_receive_skb_list_ptype net/core/dev.c:5567 [inline]
 __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5615
 __netif_receive_skb_list net/core/dev.c:5667 [inline]
 netif_receive_skb_list_internal+0x9ed/0xdf0 net/core/dev.c:5758
 gro_normal_list net/core/dev.c:5912 [inline]
 napi_complete_done+0x352/0x820 net/core/dev.c:6650
 virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline]
 virtnet_poll+0xbd1/0x1260 drivers/net/virtio_net.c:1592
 __napi_poll+0xc7/0x440 net/core/dev.c:7074
 napi_poll net/core/dev.c:7141 [inline]
 net_rx_action+0x617/0xda0 net/core/dev.c:7231
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 common_interrupt+0xb3/0xd0 arch/x86/kernel/irq.c:240
 </IRQ>
 <TASK>
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:save_stack+0x86/0x1e0 mm/page_owner.c:115
Code: 49 c1 ed 03 43 c7 44 25 00 f1 f1 f1 f1 43 c7 44 25 14 f3 f3 f3 f3 e8 59 62 af ff ba 80 00 00 00 48 89 df 31 f6 e8 4a 56 f9 ff <65> 48 8b 1d 42 35 31 7e 48 81 c3 80 05 00 00 49 89 df 49 c1 ef 03
RSP: 0018:ffffc90002dcf2c0 EFLAGS: 00000202
RAX: ffffc90002dcf300 RBX: ffffc90002dcf300 RCX: 0000000000000000
RDX: 0000000000000080 RSI: 0000000000000000 RDI: ffffc90002dcf380
RBP: ffffc90002dcf3e8 R08: dffffc0000000000 R09: ffffc90002dcf300
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920005b9e5c R14: dffffc0000000000 R15: ffffea0001fe4880
 __reset_page_owner+0x52/0x180 mm/page_owner.c:140
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
 free_unref_page_list+0x1f7/0x8e0 mm/page_alloc.c:3433
 release_pages+0x1bb9/0x1f40 mm/swap.c:963
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
 tlb_flush_mmu mm/mmu_gather.c:247 [inline]
 tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:338
 exit_mmap+0x3cd/0x620 mm/mmap.c:3206
 __mmput+0x112/0x3b0 kernel/fork.c:1127
 exit_mm+0x688/0x7f0 kernel/exit.c:550
 do_exit+0x626/0x2480 kernel/exit.c:861
 do_group_exit+0x144/0x310 kernel/exit.c:996
 get_signal+0xc66/0x14e0 kernel/signal.c:2900
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc33407d169
Code: Unable to access opcode bytes at RIP 0x7fc33407d13f.
RSP: 002b:00007fc331ec5038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: 000000000003fffd RBX: 00007fc334296080 RCX: 00007fc33407d169
RDX: 03fffffffffffeda RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007fc3340fe2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fc334296080 R15: 00007ffc023c5b38
 </TASK>
----------------
Code disassembly (best guess):
   0:	49 c1 ed 03          	shr    $0x3,%r13
   4:	43 c7 44 25 00 f1 f1 	movl   $0xf1f1f1f1,0x0(%r13,%r12,1)
   b:	f1 f1
   d:	43 c7 44 25 14 f3 f3 	movl   $0xf3f3f3f3,0x14(%r13,%r12,1)
  14:	f3 f3
  16:	e8 59 62 af ff       	call   0xffaf6274
  1b:	ba 80 00 00 00       	mov    $0x80,%edx
  20:	48 89 df             	mov    %rbx,%rdi
  23:	31 f6                	xor    %esi,%esi
  25:	e8 4a 56 f9 ff       	call   0xfff95674
* 2a:	65 48 8b 1d 42 35 31 	mov    %gs:0x7e313542(%rip),%rbx        # 0x7e313574 <-- trapping instruction
  31:	7e
  32:	48 81 c3 80 05 00 00 	add    $0x580,%rbx
  39:	49 89 df             	mov    %rbx,%r15
  3c:	49 c1 ef 03          	shr    $0x3,%r15