netlink: 13951 bytes leftover after parsing attributes in process `syz.3.7672'.
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
6.12.0-rc7-syzkaller-g2c8b09ac2537 #0 Not tainted
------------------------------------------------------
syz.3.7672/26358 is trying to acquire lock:
ffffffff8e815360 (console_owner){-.-.}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:342 [inline]
ffffffff8e815360 (console_owner){-.-.}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:267 [inline]
ffffffff8e815360 (console_owner){-.-.}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:288 [inline]
ffffffff8e815360 (console_owner){-.-.}-{0:0}, at: console_flush_all+0x1a3/0xeb0 kernel/printk/printk.c:3157

but task is already holding lock:
ffff8880b863ead8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&rq->__lock){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
       _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
       raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
       raw_spin_rq_lock kernel/sched/sched.h:1506 [inline]
       task_rq_lock+0xc6/0x360 kernel/sched/core.c:700
       cgroup_move_task+0x9b/0x5a0 kernel/sched/psi.c:1161
       css_set_move_task+0x72e/0x950 kernel/cgroup/cgroup.c:898
       cgroup_post_fork+0x256/0x880 kernel/cgroup/cgroup.c:6692
       copy_process+0x39e9/0x3d50 kernel/fork.c:2600
       kernel_clone+0x226/0x8f0 kernel/fork.c:2786
       user_mode_thread+0x132/0x1a0 kernel/fork.c:2864
       rest_init+0x23/0x300 init/main.c:712
       start_kernel+0x47f/0x500 init/main.c:1105
       x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #3 (&p->pi_lock){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
       class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]
       try_to_wake_up+0xbe/0x14b0 kernel/sched/core.c:4165
       __wake_up_common kernel/sched/wait.c:89 [inline]
       __wake_up_common_lock+0x130/0x1e0 kernel/sched/wait.c:106
       tty_port_default_wakeup+0xa6/0xf0 drivers/tty/tty_port.c:69
       serial8250_tx_chars+0x6e2/0x930 drivers/tty/serial/8250/8250_port.c:1821
       serial8250_handle_irq+0x630/0xb80 drivers/tty/serial/8250/8250_port.c:1929
       serial8250_default_handle_irq+0xd1/0x1f0 drivers/tty/serial/8250/8250_port.c:1949
       serial8250_interrupt+0xa9/0x1f0 drivers/tty/serial/8250/8250_core.c:86
       __handle_irq_event_percpu+0x29a/0xa80 kernel/irq/handle.c:158
       handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
       handle_irq_event+0x89/0x1f0 kernel/irq/handle.c:210
       handle_edge_irq+0x25f/0xc20 kernel/irq/chip.c:831
       generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
       handle_irq arch/x86/kernel/irq.c:247 [inline]
       call_irq_handler arch/x86/kernel/irq.c:259 [inline]
       __common_interrupt+0x136/0x230 arch/x86/kernel/irq.c:285
       common_interrupt+0xb4/0xd0 arch/x86/kernel/irq.c:278
       asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
       variable_test_bit arch/x86/include/asm/bitops.h:227 [inline]
       arch_test_bit arch/x86/include/asm/bitops.h:239 [inline]
       _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
       tomoyo_check_acl+0x2d8/0x3f0 security/tomoyo/domain.c:184
       tomoyo_path_number_perm+0x459/0x880 security/tomoyo/file.c:733
       security_file_ioctl+0xc6/0x2a0 security/security.c:2910
       __do_sys_ioctl fs/ioctl.c:901 [inline]
       __se_sys_ioctl+0x47/0x170 fs/ioctl.c:893
       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

-> #2 (&tty->write_wait){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
       __wake_up_common_lock+0x25/0x1e0 kernel/sched/wait.c:105
       tty_port_default_wakeup+0xa6/0xf0 drivers/tty/tty_port.c:69
       serial8250_tx_chars+0x6e2/0x930 drivers/tty/serial/8250/8250_port.c:1821
       serial8250_handle_irq+0x630/0xb80 drivers/tty/serial/8250/8250_port.c:1929
       serial8250_default_handle_irq+0xd1/0x1f0 drivers/tty/serial/8250/8250_port.c:1949
       serial8250_interrupt+0xa9/0x1f0 drivers/tty/serial/8250/8250_core.c:86
       __handle_irq_event_percpu+0x29a/0xa80 kernel/irq/handle.c:158
       handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
       handle_irq_event+0x89/0x1f0 kernel/irq/handle.c:210
       handle_edge_irq+0x25f/0xc20 kernel/irq/chip.c:831
       generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
       handle_irq arch/x86/kernel/irq.c:247 [inline]
       call_irq_handler arch/x86/kernel/irq.c:259 [inline]
       __common_interrupt+0x136/0x230 arch/x86/kernel/irq.c:285
       common_interrupt+0xb4/0xd0 arch/x86/kernel/irq.c:278
       asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
       native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
       arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
       acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111
       acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702
       cpuidle_enter_state+0x109/0x470 drivers/cpuidle/cpuidle.c:264
       cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:385
       call_cpuidle kernel/sched/idle.c:155 [inline]
       cpuidle_idle_call kernel/sched/idle.c:230 [inline]
       do_idle+0x375/0x5d0 kernel/sched/idle.c:326
       cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
       rest_init+0x2dc/0x300 init/main.c:747
       start_kernel+0x47f/0x500 init/main.c:1105
       x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #1 (&port_lock_key){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
       uart_port_lock_irqsave include/linux/serial_core.h:711 [inline]
       serial8250_console_write+0x1a7/0x1ed0 drivers/tty/serial/8250/8250_port.c:3352
       console_emit_next_record kernel/printk/printk.c:3092 [inline]
       console_flush_all+0x86b/0xeb0 kernel/printk/printk.c:3180
       __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
       console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3279
       vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2407
       _printk+0xd5/0x120 kernel/printk/printk.c:2432
       register_console+0xbf5/0xfd0 kernel/printk/printk.c:4069
       univ8250_console_init+0x52/0x90 drivers/tty/serial/8250/8250_core.c:513
       console_init+0x1b8/0x6f0 kernel/printk/printk.c:4262
       start_kernel+0x2d8/0x500 init/main.c:1040
       x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #0 (console_owner){-.-.}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3161 [inline]
       check_prevs_add kernel/locking/lockdep.c:3280 [inline]
       validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
       __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5202
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
       console_lock_spinning_enable kernel/printk/printk.c:1905 [inline]
       console_emit_next_record kernel/printk/printk.c:3086 [inline]
       console_flush_all+0x7f8/0xeb0 kernel/printk/printk.c:3180
       __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
       console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3279
       vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2407
       _printk+0xd5/0x120 kernel/printk/printk.c:2432
       fail_dump lib/fault-inject.c:46 [inline]
       should_fail_ex+0x391/0x4e0 lib/fault-inject.c:154
       __copy_to_user_inatomic include/linux/uaccess.h:132 [inline]
       copy_to_user_nofault+0x88/0x140 mm/maccess.c:149
       bpf_prog_c7763bb3f68e5cb3+0x41/0x43
       bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline]
       __bpf_prog_run include/linux/filter.h:701 [inline]
       bpf_prog_run include/linux/filter.h:708 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:2351 [inline]
       bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2394
       __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222
       trace_sched_switch include/trace/events/sched.h:222 [inline]
       __schedule+0x22bb/0x4c30 kernel/sched/core.c:6690
       preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6872
       preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6896
       preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
       vprintk_emit+0x84c/0xa10 kernel/printk/printk.c:2408
       _printk+0xd5/0x120 kernel/printk/printk.c:2432
       __nla_validate_parse+0x282e/0x3090 lib/nlattr.c:647
       __nla_parse+0x40/0x60 lib/nlattr.c:732
       __nlmsg_parse include/net/netlink.h:761 [inline]
       nlmsg_parse_deprecated include/net/netlink.h:802 [inline]
       neightbl_set+0x1b4/0x1fb0 net/core/neighbour.c:2329
       rtnetlink_rcv_msg+0x73f/0xcf0 net/core/rtnetlink.c:6675
       netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
       netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
       netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
       netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
       sock_sendmsg_nosec net/socket.c:729 [inline]
       __sock_sendmsg+0x221/0x270 net/socket.c:744
       sock_write_iter+0x2d7/0x3f0 net/socket.c:1165
       new_sync_write fs/read_write.c:590 [inline]
       vfs_write+0xaeb/0xd30 fs/read_write.c:683
       ksys_write+0x183/0x2b0 fs/read_write.c:736
       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

other info that might help us debug this:

Chain exists of:
  console_owner --> &p->pi_lock --> &rq->__lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&rq->__lock);
                               lock(&p->pi_lock);
                               lock(&rq->__lock);
  lock(console_owner);

 *** DEADLOCK ***

5 locks held by syz.3.7672/26358:
 #0: ffffffff8fcd5b48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff8fcd5b48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6672
 #1: ffff8880b863ead8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
 #2: ffffffff8e939de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #2: ffffffff8e939de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #2: ffffffff8e939de0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2350 [inline]
 #2: ffffffff8e939de0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x244/0x590 kernel/trace/bpf_trace.c:2394
 #3: ffffffff8e8153c0 (console_lock){+.+.}-{0:0}, at: _printk+0xd5/0x120 kernel/printk/printk.c:2432
 #4: ffffffff8e814fd0 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:342 [inline]
 #4: ffffffff8e814fd0 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:267 [inline]
 #4: ffffffff8e814fd0 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:288 [inline]
 #4: ffffffff8e814fd0 (console_srcu){....}-{0:0}, at: console_flush_all+0x1a3/0xeb0 kernel/printk/printk.c:3157

stack backtrace:
CPU: 0 UID: 0 PID: 26358 Comm: syz.3.7672 Not tainted 6.12.0-rc7-syzkaller-g2c8b09ac2537 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074
 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2206
 check_prev_add kernel/locking/lockdep.c:3161 [inline]
 check_prevs_add kernel/locking/lockdep.c:3280 [inline]
 validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5202
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
 console_lock_spinning_enable kernel/printk/printk.c:1905 [inline]
 console_emit_next_record kernel/printk/printk.c:3086 [inline]
 console_flush_all+0x7f8/0xeb0 kernel/printk/printk.c:3180
 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
 console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3279
 vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2407
 _printk+0xd5/0x120 kernel/printk/printk.c:2432
 fail_dump lib/fault-inject.c:46 [inline]
 should_fail_ex+0x391/0x4e0 lib/fault-inject.c:154
 __copy_to_user_inatomic include/linux/uaccess.h:132 [inline]
 copy_to_user_nofault+0x88/0x140 mm/maccess.c:149
 bpf_prog_c7763bb3f68e5cb3+0x41/0x43
 bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2351 [inline]
 bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2394
 __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x22bb/0x4c30 kernel/sched/core.c:6690
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6872
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6896
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 vprintk_emit+0x84c/0xa10 kernel/printk/printk.c:2408
 _printk+0xd5/0x120 kernel/printk/printk.c:2432
 __nla_validate_parse+0x282e/0x3090 lib/nlattr.c:647
 __nla_parse+0x40/0x60 lib/nlattr.c:732
 __nlmsg_parse include/net/netlink.h:761 [inline]
 nlmsg_parse_deprecated include/net/netlink.h:802 [inline]
 neightbl_set+0x1b4/0x1fb0 net/core/neighbour.c:2329
 rtnetlink_rcv_msg+0x73f/0xcf0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 sock_write_iter+0x2d7/0x3f0 net/socket.c:1165
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0xaeb/0xd30 fs/read_write.c:683
 ksys_write+0x183/0x2b0 fs/read_write.c:736
 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: 0033:0x7f0c7f37e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0c8022f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0c7f536080 RCX: 00007f0c7f37e819
RDX: 000000000000fe33 RSI: 0000000020000040 RDI: 000000000000000c
RBP: 00007f0c8022f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f0c7f536080 R15: 00007ffec32ae388
 </TASK>
CPU: 0 UID: 0 PID: 26358 Comm: syz.3.7672 Not tainted 6.12.0-rc7-syzkaller-g2c8b09ac2537 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:53 [inline]
 should_fail_ex+0x3b0/0x4e0 lib/fault-inject.c:154
 __copy_to_user_inatomic include/linux/uaccess.h:132 [inline]
 copy_to_user_nofault+0x88/0x140 mm/maccess.c:149
 bpf_prog_c7763bb3f68e5cb3+0x41/0x43
 bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2351 [inline]
 bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2394
 __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x22bb/0x4c30 kernel/sched/core.c:6690
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6872
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6896
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 vprintk_emit+0x84c/0xa10 kernel/printk/printk.c:2408
 _printk+0xd5/0x120 kernel/printk/printk.c:2432
 __nla_validate_parse+0x282e/0x3090 lib/nlattr.c:647
 __nla_parse+0x40/0x60 lib/nlattr.c:732
 __nlmsg_parse include/net/netlink.h:761 [inline]
 nlmsg_parse_deprecated include/net/netlink.h:802 [inline]
 neightbl_set+0x1b4/0x1fb0 net/core/neighbour.c:2329
 rtnetlink_rcv_msg+0x73f/0xcf0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 sock_write_iter+0x2d7/0x3f0 net/socket.c:1165
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0xaeb/0xd30 fs/read_write.c:683
 ksys_write+0x183/0x2b0 fs/read_write.c:736
 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: 0033:0x7f0c7f37e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0c8022f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0c7f536080 RCX: 00007f0c7f37e819
RDX: 000000000000fe33 RSI: 0000000020000040 RDI: 000000000000000c
RBP: 00007f0c8022f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f0c7f536080 R15: 00007ffec32ae388
 </TASK>