FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 1
======================================================
WARNING: possible circular locking dependency detected
6.10.0-rc4-syzkaller-00874-g84562f9953ec #0 Not tainted
------------------------------------------------------
syz-executor.2/5544 is trying to acquire lock:
ffffffff8e328140 (console_owner){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:334 [inline]
ffffffff8e328140 (console_owner){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
ffffffff8e328140 (console_owner){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
ffffffff8e328140 (console_owner){....}-{0:0}, at: console_flush_all+0x152/0xfd0 kernel/printk/printk.c:2986

but task is already holding lock:
ffff8880b953e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #5 (&rq->__lock){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
       raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
       raw_spin_rq_lock kernel/sched/sched.h:1406 [inline]
       rq_lock kernel/sched/sched.h:1702 [inline]
       task_fork_fair+0x61/0x1e0 kernel/sched/fair.c:12710
       sched_cgroup_fork+0x37c/0x410 kernel/sched/core.c:4844
       copy_process+0x2217/0x3dc0 kernel/fork.c:2499
       kernel_clone+0x226/0x8f0 kernel/fork.c:2797
       user_mode_thread+0x132/0x1a0 kernel/fork.c:2875
       rest_init+0x23/0x300 init/main.c:712
       start_kernel+0x47a/0x500 init/main.c:1103
       x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #4 (&p->pi_lock){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       __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:553 [inline]
       try_to_wake_up+0xb0/0x1470 kernel/sched/core.c:4262
       create_worker+0x641/0x8b0 kernel/workqueue.c:2818
       workqueue_init+0x520/0x8a0 kernel/workqueue.c:7860
       kernel_init_freeable+0x3fe/0x5d0 init/main.c:1562
       kernel_init+0x1d/0x2b0 init/main.c:1467
       ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

-> #3 (&pool->lock){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
       _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
       __queue_work+0x6e5/0xee0
       queue_work_on+0x1c2/0x380 kernel/workqueue.c:2410
       queue_work include/linux/workqueue.h:621 [inline]
       rpm_suspend+0xe70/0x1730 drivers/base/power/runtime.c:662
       __pm_runtime_idle+0x131/0x1a0 drivers/base/power/runtime.c:1104
       pm_runtime_put include/linux/pm_runtime.h:448 [inline]
       __device_attach+0x3e5/0x520 drivers/base/dd.c:1046
       bus_probe_device+0x189/0x260 drivers/base/bus.c:532
       device_add+0x856/0xbf0 drivers/base/core.c:3679
       serial_base_port_add+0x2b6/0x3f0 drivers/tty/serial/serial_base_bus.c:179
       serial_core_port_device_add drivers/tty/serial/serial_core.c:3380 [inline]
       serial_core_register_port+0x374/0x2370 drivers/tty/serial/serial_core.c:3421
       serial8250_register_8250_port+0x1433/0x1cd0 drivers/tty/serial/8250/8250_core.c:1140
       serial_pnp_probe+0x4f9/0x9d0 drivers/tty/serial/8250/8250_pnp.c:490
       pnp_device_probe+0x2ba/0x460 drivers/pnp/driver.c:111
       really_probe+0x2b8/0xad0 drivers/base/dd.c:656
       __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798
       driver_probe_device+0x50/0x430 drivers/base/dd.c:828
       __driver_attach+0x45f/0x710 drivers/base/dd.c:1214
       bus_for_each_dev+0x239/0x2b0 drivers/base/bus.c:368
       bus_add_driver+0x346/0x670 drivers/base/bus.c:673
       driver_register+0x23a/0x320 drivers/base/driver.c:246
       serial8250_init+0x9e/0x170 drivers/tty/serial/8250/8250_core.c:1241
       do_one_initcall+0x248/0x880 init/main.c:1267
       do_initcall_level+0x157/0x210 init/main.c:1329
       do_initcalls+0x3f/0x80 init/main.c:1345
       kernel_init_freeable+0x435/0x5d0 init/main.c:1578
       kernel_init+0x1d/0x2b0 init/main.c:1467
       ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

-> #2 (&dev->power.lock){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
       __pm_runtime_resume+0x112/0x180 drivers/base/power/runtime.c:1171
       pm_runtime_get include/linux/pm_runtime.h:396 [inline]
       __uart_start+0x17c/0x450 drivers/tty/serial/serial_core.c:148
       uart_write+0x152/0x380 drivers/tty/serial/serial_core.c:633
       process_output_block drivers/tty/n_tty.c:574 [inline]
       n_tty_write+0xd6a/0x1230 drivers/tty/n_tty.c:2389
       iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
       file_tty_write+0x54f/0x9b0 drivers/tty/tty_io.c:1096
       new_sync_write fs/read_write.c:497 [inline]
       vfs_write+0xa72/0xc90 fs/read_write.c:590
       ksys_write+0x1a0/0x2c0 fs/read_write.c:643
       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

-> #1 (&port_lock_key){-...}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       __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:618 [inline]
       serial8250_console_write+0x1a8/0x1770 drivers/tty/serial/8250/8250_port.c:3352
       console_emit_next_record kernel/printk/printk.c:2928 [inline]
       console_flush_all+0x867/0xfd0 kernel/printk/printk.c:2994
       console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3063
       vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2345
       _printk+0xd5/0x120 kernel/printk/printk.c:2370
       register_console+0x722/0xce0 kernel/printk/printk.c:3596
       univ8250_console_init+0x49/0x50 drivers/tty/serial/8250/8250_core.c:719
       console_init+0x1b8/0x6f0 kernel/printk/printk.c:3742
       start_kernel+0x2d3/0x500 init/main.c:1038
       x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #0 (console_owner){....}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3134 [inline]
       check_prevs_add kernel/locking/lockdep.c:3253 [inline]
       validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3869
       __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       console_lock_spinning_enable kernel/printk/printk.c:1870 [inline]
       console_emit_next_record kernel/printk/printk.c:2922 [inline]
       console_flush_all+0x810/0xfd0 kernel/printk/printk.c:2994
       console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3063
       vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2345
       _printk+0xd5/0x120 kernel/printk/printk.c:2370
       fail_dump lib/fault-inject.c:45 [inline]
       should_fail_ex+0x391/0x4e0 lib/fault-inject.c:153
       strncpy_from_user+0x36/0x2f0 lib/strncpy_from_user.c:118
       strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:186
       bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:216 [inline]
       ____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:311 [inline]
       bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:307
       bpf_prog_f2ce78ec2d45df6f+0x3d/0x3f
       bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
       __bpf_prog_run include/linux/filter.h:691 [inline]
       bpf_prog_run include/linux/filter.h:698 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
       bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2446
       __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222
       trace_sched_switch include/trace/events/sched.h:222 [inline]
       __schedule+0x2587/0x4a20 kernel/sched/core.c:6742
       preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
       irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
       asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
       import_iovec+0x4/0x120 lib/iov_iter.c:1345
       copy_msghdr_from_user+0x52f/0x680 net/socket.c:2522
       sendmsg_copy_msghdr net/socket.c:2616 [inline]
       ___sys_sendmsg net/socket.c:2635 [inline]
       __sys_sendmsg+0x23d/0x3a0 net/socket.c:2668
       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 ***

4 locks held by syz-executor.2/5544:
 #0: ffff8880b953e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
 #1: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 #1: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
 #1: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2402 [inline]
 #1: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x244/0x590 kernel/trace/bpf_trace.c:2446
 #2: ffffffff8e20fa60 (console_lock){+.+.}-{0:0}, at: _printk+0xd5/0x120 kernel/printk/printk.c:2370
 #3: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:334 [inline]
 #3: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
 #3: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
 #3: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: console_flush_all+0x152/0xfd0 kernel/printk/printk.c:2986

stack backtrace:
CPU: 1 PID: 5544 Comm: syz-executor.2 Not tainted 6.10.0-rc4-syzkaller-00874-g84562f9953ec #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187
 check_prev_add kernel/locking/lockdep.c:3134 [inline]
 check_prevs_add kernel/locking/lockdep.c:3253 [inline]
 validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3869
 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 console_lock_spinning_enable kernel/printk/printk.c:1870 [inline]
 console_emit_next_record kernel/printk/printk.c:2922 [inline]
 console_flush_all+0x810/0xfd0 kernel/printk/printk.c:2994
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3063
 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2345
 _printk+0xd5/0x120 kernel/printk/printk.c:2370
 fail_dump lib/fault-inject.c:45 [inline]
 should_fail_ex+0x391/0x4e0 lib/fault-inject.c:153
 strncpy_from_user+0x36/0x2f0 lib/strncpy_from_user.c:118
 strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:186
 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:216 [inline]
 ____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:311 [inline]
 bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:307
 bpf_prog_f2ce78ec2d45df6f+0x3d/0x3f
 bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
 __bpf_prog_run include/linux/filter.h:691 [inline]
 bpf_prog_run include/linux/filter.h:698 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
 bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2446
 __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2587/0x4a20 kernel/sched/core.c:6742
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 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:import_iovec+0x4/0x120 lib/iov_iter.c:1345
Code: 82 b6 e8 fc bb f2 ff ff ff e9 c2 f9 ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <55> 41 57 41 56 41 55 41 54 53 48 83 ec 18 4c 89 4c 24 10 4c 89 44
RSP: 0018:ffffc90012c1fb38 EFLAGS: 00000282
RAX: 1ffff92002583f76 RBX: 0000000000000001 RCX: 0000000000000008
RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000001
RBP: ffffc90012c1fc50 R08: ffffc90012c1fde0 R09: ffffc90012c1fe10
R10: ffffc90012c1fe50 R11: fffff52002583fcc R12: 1ffff92002583f77
R13: 00000000200000c0 R14: ffffc90012c1fbb8 R15: 1ffff92002583f01
 copy_msghdr_from_user+0x52f/0x680 net/socket.c:2522
 sendmsg_copy_msghdr net/socket.c:2616 [inline]
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmsg+0x23d/0x3a0 net/socket.c:2668
 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: 0033:0x7fedc9c7d0a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fedc97ff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fedc9db3f80 RCX: 00007fedc9c7d0a9
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007fedc97ff120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 000000000000000b R14: 00007fedc9db3f80 R15: 00007fff3be041a8
 </TASK>
CPU: 1 PID: 5544 Comm: syz-executor.2 Not tainted 6.10.0-rc4-syzkaller-00874-g84562f9953ec #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail_ex+0x3b0/0x4e0 lib/fault-inject.c:153
 strncpy_from_user+0x36/0x2f0 lib/strncpy_from_user.c:118
 strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:186
 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:216 [inline]
 ____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:311 [inline]
 bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:307
 bpf_prog_f2ce78ec2d45df6f+0x3d/0x3f
 bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
 __bpf_prog_run include/linux/filter.h:691 [inline]
 bpf_prog_run include/linux/filter.h:698 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
 bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2446
 __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2587/0x4a20 kernel/sched/core.c:6742
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 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:import_iovec+0x4/0x120 lib/iov_iter.c:1345
Code: 82 b6 e8 fc bb f2 ff ff ff e9 c2 f9 ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <55> 41 57 41 56 41 55 41 54 53 48 83 ec 18 4c 89 4c 24 10 4c 89 44
RSP: 0018:ffffc90012c1fb38 EFLAGS: 00000282
RAX: 1ffff92002583f76 RBX: 0000000000000001 RCX: 0000000000000008
RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000001
RBP: ffffc90012c1fc50 R08: ffffc90012c1fde0 R09: ffffc90012c1fe10
R10: ffffc90012c1fe50 R11: fffff52002583fcc R12: 1ffff92002583f77
R13: 00000000200000c0 R14: ffffc90012c1fbb8 R15: 1ffff92002583f01
 copy_msghdr_from_user+0x52f/0x680 net/socket.c:2522
 sendmsg_copy_msghdr net/socket.c:2616 [inline]
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmsg+0x23d/0x3a0 net/socket.c:2668
 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: 0033:0x7fedc9c7d0a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fedc97ff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fedc9db3f80 RCX: 00007fedc9c7d0a9
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007fedc97ff120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 000000000000000b R14: 00007fedc9db3f80 R15: 00007fff3be041a8
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	b6 e8                	mov    $0xe8,%dh
   2:	fc                   	cld
   3:	bb f2 ff ff ff       	mov    $0xfffffff2,%ebx
   8:	e9 c2 f9 ff ff       	jmp    0xfffff9cf
   d:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  14:	00
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	f3 0f 1e fa          	endbr64
* 29:	55                   	push   %rbp <-- trapping instruction
  2a:	41 57                	push   %r15
  2c:	41 56                	push   %r14
  2e:	41 55                	push   %r13
  30:	41 54                	push   %r12
  32:	53                   	push   %rbx
  33:	48 83 ec 18          	sub    $0x18,%rsp
  37:	4c 89 4c 24 10       	mov    %r9,0x10(%rsp)
  3c:	4c                   	rex.WR
  3d:	89                   	.byte 0x89
  3e:	44                   	rex.R