------------[ cut here ]------------
WARNING: CPU: 1 PID: 4163 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 4163 Comm: udevd Not tainted 5.15.178-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 ab ba d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 94 ba 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:ffffc90000dd08a8 EFLAGS: 00010046
RAX: ffffffff81aacafc RBX: 0000000000000000 RCX: ffff8880289cd940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000

======================================================
WARNING: possible circular locking dependency detected
5.15.178-syzkaller #0 Not tainted
------------------------------------------------------
udevd/4163 is trying to acquire lock:
ffffffff8cb14860 (console_owner){-.-.}-{0:0}, at: console_trylock_spinning+0x185/0x3f0 kernel/printk/printk.c:1879

but task is already holding lock:
ffff8880b8f28098 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:946

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
       queue_delayed_work include/linux/workqueue.h:527 [inline]
       schedule_delayed_work include/linux/workqueue.h:631 [inline]
       kvfree_call_rcu+0x50e/0x8a0 kernel/rcu/tree.c:3625
       rtnl_register_internal+0x443/0x530 net/core/rtnetlink.c:223
       rtnl_register+0x32/0x70 net/core/rtnetlink.c:273
       ip_rt_init+0x2e6/0x390 net/ipv4/route.c:3750
       ip_init+0xa/0x20 net/ipv4/ip_output.c:1749
       inet_init+0x27c/0x390 net/ipv4/af_inet.c:2007
       do_one_initcall+0x22b/0x7a0 init/main.c:1302
       do_initcall_level+0x157/0x210 init/main.c:1375
       do_initcalls+0x49/0x90 init/main.c:1391
       kernel_init_freeable+0x425/0x5c0 init/main.c:1615
       kernel_init+0x19/0x290 init/main.c:1506
       ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

-> #2 (krc.lock){..-.}-{2:2}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
       _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
       krc_this_cpu_lock kernel/rcu/tree.c:3199 [inline]
       add_ptr_to_bulk_krc_lock kernel/rcu/tree.c:3506 [inline]
       kvfree_call_rcu+0x1b5/0x8a0 kernel/rcu/tree.c:3597
       trie_update_elem+0x8ad/0xca0 kernel/bpf/lpm_trie.c:396
       bpf_map_update_value+0x5d7/0x6c0 kernel/bpf/syscall.c:221
       generic_map_update_batch+0x54d/0x8b0 kernel/bpf/syscall.c:1421
       bpf_map_do_batch+0x4d0/0x620
       __sys_bpf+0x55c/0x670
       __do_sys_bpf kernel/bpf/syscall.c:4760 [inline]
       __se_sys_bpf kernel/bpf/syscall.c:4758 [inline]
       __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4758
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

-> #1 (&trie->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
       trie_delete_elem+0x90/0x690 kernel/bpf/lpm_trie.c:467
       bpf_prog_09493a2099d8cb60+0x66a/0xdc4
       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_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1915
       trace_console_rcuidle include/trace/events/printk.h:10 [inline]
       call_console_drivers kernel/printk/printk.c:1932 [inline]
       console_unlock+0x10a2/0x12b0 kernel/printk/printk.c:2744
       vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
       _printk+0xd1/0x120 kernel/printk/printk.c:2299
       __dev_set_promiscuity+0x1df/0x5d0 net/core/dev.c:8612
       __dev_change_flags+0x459/0x6e0 net/core/dev.c:8830
       dev_change_flags+0x87/0x190 net/core/dev.c:8892
       dev_ifsioc+0x147/0x10c0 net/core/dev_ioctl.c:324
       dev_ioctl+0x504/0xf60 net/core/dev_ioctl.c:587
       sock_do_ioctl+0x34f/0x5a0 net/socket.c:1154
       sock_ioctl+0x47f/0x770 net/socket.c:1257
       vfs_ioctl fs/ioctl.c:51 [inline]
       __do_sys_ioctl fs/ioctl.c:874 [inline]
       __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

-> #0 (console_owner){-.-.}-{0:0}:
       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
       console_trylock_spinning+0x1a5/0x3f0 kernel/printk/printk.c:1896
       vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
       _printk+0xd1/0x120 kernel/printk/printk.c:2299
       __show_regs+0x133/0x500 arch/x86/kernel/process_64.c:83
       show_regs+0x32/0x60 arch/x86/kernel/dumpstack.c:472
       __warn+0x15b/0x300 kernel/panic.c:678
       report_bug+0x1b7/0x2e0 lib/bug.c:199
       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
       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+0x32/0x37c
       bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
       __bpf_prog_run include/linux/filter.h:621 [inline]
       bpf_prog_run include/linux/filter.h:635 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
       bpf_trace_run3+0x2ce/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
       call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
       expire_timers kernel/time/timer.c:1496 [inline]
       __run_timers+0x67c/0x890 kernel/time/timer.c:1767
       run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
       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
       instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
       sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
       asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
       vfs_rename+0xd50/0x10f0
       do_renameat2+0xe0f/0x1700 fs/namei.c:4985
       __do_sys_rename fs/namei.c:5031 [inline]
       __se_sys_rename fs/namei.c:5029 [inline]
       __x64_sys_rename+0x82/0x90 fs/namei.c:5029
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

other info that might help us debug this:

Chain exists of:
  console_owner --> krc.lock --> &base->lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&base->lock);
                               lock(krc.lock);
                               lock(&base->lock);
  lock(console_owner);

 *** DEADLOCK ***

7 locks held by udevd/4163:
 #0: ffff88807e97c460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
 #1: ffff88807e5427c8 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_renameat2+0x67e/0x1700 fs/namei.c:4924
 #2: ffff8880791cf268 (&sb->s_type->i_mutex_key#8){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
 #2: ffff8880791cf268 (&sb->s_type->i_mutex_key#8){+.+.}-{3:3}, at: lock_two_nondirectories+0xde/0x130 fs/inode.c:1122
 #3: ffff888079253a70 (&sb->s_type->i_mutex_key#8/4){+.+.}-{3:3}, at: vfs_rename+0x7e4/0x10f0 fs/namei.c:4803
 #4: ffffc90000dd0be0 ((&app->join_timer)#2){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:45 [inline]
 #4: ffffc90000dd0be0 ((&app->join_timer)#2){+.-.}-{0:0}, at: call_timer_fn+0xbe/0x560 kernel/time/timer.c:1441
 #5: ffff8880b8f28098 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:946
 #6: ffffffff8cb1fce0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311

stack backtrace:
CPU: 1 PID: 4163 Comm: udevd Not tainted 5.15.178-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
 console_trylock_spinning+0x1a5/0x3f0 kernel/printk/printk.c:1896
 vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
 _printk+0xd1/0x120 kernel/printk/printk.c:2299
 __show_regs+0x133/0x500 arch/x86/kernel/process_64.c:83
 show_regs+0x32/0x60 arch/x86/kernel/dumpstack.c:472
 __warn+0x15b/0x300 kernel/panic.c:678
 report_bug+0x1b7/0x2e0 lib/bug.c:199
 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 ab ba d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 94 ba 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:ffffc90000dd08a8 EFLAGS: 00010046
RAX: ffffffff81aacafc RBX: 0000000000000000 RCX: ffff8880289cd940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaca0d R09: ffffffff8f8a1048
R10: ffffffff8f8a1058 R11: ffffffff8f8a1050 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000dd0908
 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+0x32/0x37c
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:621 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run3+0x2ce/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
 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 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
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:vfs_rename+0xd50/0x10f0 fs/namei.c:4837
Code: 8b 44 24 38 44 8b 4c 24 4c 41 ff d2 89 c3 31 ff 89 c6 e8 33 23 a7 ff 85 db 74 0f e8 ca 1f a7 ff 48 8b 44 24 18 e9 00 fc ff ff <83> 7c 24 78 00 75 6b 48 83 7c 24 40 00 74 63 81 7c 24 2c 00 00 20
RSP: 0018:ffffc9000305fae0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81b25658
RDX: ffff8880289cd940 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000305fc50 R08: ffffffff81d965bd R09: 0000000067c528d4
R10: 0000000023bb002d R11: 0000000067c528d4 R12: ffff88807e542678
R13: ffff8880653c4d38 R14: 0000000074b82d01 R15: dffffc0000000000
 do_renameat2+0xe0f/0x1700 fs/namei.c:4985
 __do_sys_rename fs/namei.c:5031 [inline]
 __se_sys_rename fs/namei.c:5029 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5029
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2e1a4dc93b
Code: 48 8b 15 f0 64 15 00 83 c8 ff 64 83 3a 15 75 0e 48 8b 7c 24 08 e8 d5 d4 07 00 f7 d8 19 c0 48 83 c4 18 c3 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 be 64 15 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff254a9898 EFLAGS: 00000206 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2e1a4dc93b
RDX: 0000558ae088dd03 RSI: 00007fff254a98b8 RDI: 00007fff254a9cb8
RBP: 0000558fb86fa4d0 R08: 0000000000000006 R09: 6a55c4b5401c4e57
R10: 00000000000001b6 R11: 0000000000000206 R12: 0000558fb87235a0
R13: 00007fff254a98b8 R14: 00007fff254a9cb8 R15: 0000558fafa7c160
 </TASK>
RBP: dffffc0000000000 R08: ffffffff81aaca0d R09: ffffffff8f8a1048
R10: ffffffff8f8a1058 R11: ffffffff8f8a1050 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000dd0908
FS:  00007f2e1a42dc80(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3081fffc CR3: 0000000022d7e000 CR4: 00000000003506e0
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+0x32/0x37c
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:621 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run3+0x2ce/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
 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 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
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:vfs_rename+0xd50/0x10f0 fs/namei.c:4837
Code: 8b 44 24 38 44 8b 4c 24 4c 41 ff d2 89 c3 31 ff 89 c6 e8 33 23 a7 ff 85 db 74 0f e8 ca 1f a7 ff 48 8b 44 24 18 e9 00 fc ff ff <83> 7c 24 78 00 75 6b 48 83 7c 24 40 00 74 63 81 7c 24 2c 00 00 20
RSP: 0018:ffffc9000305fae0 EFLAGS: 00000246

RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81b25658
RDX: ffff8880289cd940 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000305fc50 R08: ffffffff81d965bd R09: 0000000067c528d4
R10: 0000000023bb002d R11: 0000000067c528d4 R12: ffff88807e542678
R13: ffff8880653c4d38 R14: 0000000074b82d01 R15: dffffc0000000000
 do_renameat2+0xe0f/0x1700 fs/namei.c:4985
 __do_sys_rename fs/namei.c:5031 [inline]
 __se_sys_rename fs/namei.c:5029 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5029
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2e1a4dc93b
Code: 48 8b 15 f0 64 15 00 83 c8 ff 64 83 3a 15 75 0e 48 8b 7c 24 08 e8 d5 d4 07 00 f7 d8 19 c0 48 83 c4 18 c3 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 be 64 15 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff254a9898 EFLAGS: 00000206
 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2e1a4dc93b
RDX: 0000558ae088dd03 RSI: 00007fff254a98b8 RDI: 00007fff254a9cb8
RBP: 0000558fb86fa4d0 R08: 0000000000000006 R09: 6a55c4b5401c4e57
R10: 00000000000001b6 R11: 0000000000000206 R12: 0000558fb87235a0
R13: 00007fff254a98b8 R14: 00007fff254a9cb8 R15: 0000558fafa7c160
 </TASK>
----------------
Code disassembly (best guess):
   0:	8b 44 24 38          	mov    0x38(%rsp),%eax
   4:	44 8b 4c 24 4c       	mov    0x4c(%rsp),%r9d
   9:	41 ff d2             	call   *%r10
   c:	89 c3                	mov    %eax,%ebx
   e:	31 ff                	xor    %edi,%edi
  10:	89 c6                	mov    %eax,%esi
  12:	e8 33 23 a7 ff       	call   0xffa7234a
  17:	85 db                	test   %ebx,%ebx
  19:	74 0f                	je     0x2a
  1b:	e8 ca 1f a7 ff       	call   0xffa71fea
  20:	48 8b 44 24 18       	mov    0x18(%rsp),%rax
  25:	e9 00 fc ff ff       	jmp    0xfffffc2a
* 2a:	83 7c 24 78 00       	cmpl   $0x0,0x78(%rsp) <-- trapping instruction
  2f:	75 6b                	jne    0x9c
  31:	48 83 7c 24 40 00    	cmpq   $0x0,0x40(%rsp)
  37:	74 63                	je     0x9c
  39:	81                   	.byte 0x81
  3a:	7c 24                	jl     0x60
  3c:	2c 00                	sub    $0x0,%al
  3e:	00 20                	add    %ah,(%rax)