==================================================================
BUG: KASAN: use-after-free in hlist_move_list include/linux/list.h:1014 [inline]
BUG: KASAN: use-after-free in collect_expired_timers kernel/time/timer.c:1576 [inline]
BUG: KASAN: use-after-free in __run_timers+0x34a/0xa10 kernel/time/timer.c:1812
Write of size 8 at addr ffff88811ca00a00 by task syz.2.51/522

CPU: 1 PID: 522 Comm: syz.2.51 Not tainted 6.1.118-syzkaller-00074-g3e3f2b9e9fca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x158/0x4e0 mm/kasan/report.c:427
 kasan_report+0x13c/0x170 mm/kasan/report.c:531
 __asan_report_store8_noabort+0x17/0x20 mm/kasan/report_generic.c:356
 hlist_move_list include/linux/list.h:1014 [inline]
 collect_expired_timers kernel/time/timer.c:1576 [inline]
 __run_timers+0x34a/0xa10 kernel/time/timer.c:1812
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:617
 __do_softirq kernel/softirq.c:655 [inline]
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5294
Code: 74 08 4c 89 ff e8 01 78 6c 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 79 6c d1 03 fb 49 8d 9d 48 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc90010f37320 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888100947088 RCX: 0000000000000002
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc90010f37370 R08: dffffc0000000000 R09: ffffed102148228e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6f37c80
R13: ffff888100946540 R14: 0000000000000000 R15: 1ffff1103ede4e65
 context_switch kernel/sched/core.c:5420 [inline]
 __schedule+0xcbd/0x1560 kernel/sched/core.c:6747
 schedule+0xc3/0x180 kernel/sched/core.c:6823
 schedule_timeout+0xa9/0x380 kernel/time/timer.c:1947
 unix_wait_for_peer+0x24b/0x330 net/unix/af_unix.c:1445
 unix_dgram_sendmsg+0x1348/0x2050 net/unix/af_unix.c:2024
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 ____sys_sendmsg+0x5d3/0x9a0 net/socket.c:2509
 ___sys_sendmsg net/socket.c:2563 [inline]
 __sys_sendmmsg+0x3b9/0x6f0 net/socket.c:2649
 __do_sys_sendmmsg net/socket.c:2678 [inline]
 __se_sys_sendmmsg net/socket.c:2675 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2675
 x64_sys_call+0x81d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:308
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff59d985d29
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:00007ff59e78e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007ff59db75fa0 RCX: 00007ff59d985d29
RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007ff59da01aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff59db75fa0 R15: 00007fffd31b6028
 </TASK>

Allocated by task 480:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x9c/0xb0 mm/kasan/common.c:388
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 __do_kmalloc_node mm/slab_common.c:938 [inline]
 __kmalloc+0xb4/0x1e0 mm/slab_common.c:951
 kmalloc include/linux/slab.h:562 [inline]
 kzalloc include/linux/slab.h:693 [inline]
 hci_alloc_dev_priv+0x27/0x1c00 net/bluetooth/hci_core.c:2435
 hci_alloc_dev include/net/bluetooth/hci_core.h:1484 [inline]
 hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:636 [inline]
 hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:712 [inline]
 hci_uart_tty_ioctl+0x401/0xa70 drivers/bluetooth/hci_ldisc.c:765
 tty_ioctl+0x903/0xc50 drivers/tty/tty_io.c:2785
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Freed by task 481:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x131/0x180 mm/kasan/common.c:241
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1745 [inline]
 slab_free_freelist_hook mm/slub.c:1771 [inline]
 slab_free mm/slub.c:3686 [inline]
 __kmem_cache_free+0x21d/0x410 mm/slub.c:3702
 kfree+0x7a/0xf0 mm/slab_common.c:990
 hci_release_dev+0x14d3/0x1640 net/bluetooth/hci_core.c:2763
 bt_host_release+0x83/0xa0 net/bluetooth/hci_sysfs.c:92
 device_release+0x95/0x1c0
 kobject_cleanup lib/kobject.c:681 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x178/0x260 lib/kobject.c:729
 put_device+0x1f/0x30 drivers/base/core.c:3805
 hci_dev_put include/net/bluetooth/hci_core.h:1444 [inline]
 hci_dev_cmd+0x2be/0x9b0 net/bluetooth/hci_core.c:795
 hci_sock_ioctl+0x415/0x7f0 net/bluetooth/hci_sock.c:1096
 sock_do_ioctl+0x152/0x450 net/socket.c:1194
 sock_ioctl+0x455/0x740 net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb4/0xc0 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
 insert_work+0x56/0x310 kernel/workqueue.c:1368
 __queue_work+0x9b6/0xd70 kernel/workqueue.c:1527
 queue_work_on+0x105/0x170 kernel/workqueue.c:1555
 queue_work include/linux/workqueue.h:510 [inline]
 hci_cmd_sync_run net/bluetooth/hci_sync.c:140 [inline]
 __hci_cmd_sync_sk+0xc2a/0xf70 net/bluetooth/hci_sync.c:162
 __hci_cmd_sync_status_sk net/bluetooth/hci_sync.c:253 [inline]
 __hci_cmd_sync_status net/bluetooth/hci_sync.c:277 [inline]
 hci_cmd_sync_status+0x52/0x130 net/bluetooth/hci_sync.c:288
 hci_dev_cmd+0x39e/0x9b0 net/bluetooth/hci_core.c:749
 hci_sock_ioctl+0x415/0x7f0 net/bluetooth/hci_sock.c:1096
 sock_do_ioctl+0x152/0x450 net/socket.c:1194
 sock_ioctl+0x455/0x740 net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Second to last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb4/0xc0 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
 insert_work+0x56/0x310 kernel/workqueue.c:1368
 __queue_work+0x9b6/0xd70 kernel/workqueue.c:1527
 queue_work_on+0x105/0x170 kernel/workqueue.c:1555
 queue_work include/linux/workqueue.h:510 [inline]
 hci_cmd_timeout+0x199/0x200 net/bluetooth/hci_core.c:1468
 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299
 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the object at ffff88811ca00000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2560 bytes inside of
 8192-byte region [ffff88811ca00000, ffff88811ca02000)

The buggy address belongs to the physical page:
page:ffffea0004728000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11ca00
head:ffffea0004728000 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043500
raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd28c0(GFP_NOWAIT|__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 141, tgid 141 (dhcpcd), ts 5948168828, free_ts 0
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x213/0x220 mm/page_alloc.c:2590
 prep_new_page+0x1b/0x110 mm/page_alloc.c:2597
 get_page_from_freelist+0x2f41/0x2fc0 mm/page_alloc.c:4462
 __alloc_pages+0x234/0x610 mm/page_alloc.c:5759
 alloc_slab_page+0x6c/0xf0
 allocate_slab mm/slub.c:1962 [inline]
 new_slab+0x90/0x3e0 mm/slub.c:2015
 ___slab_alloc+0x6f9/0xb80 mm/slub.c:3203
 __slab_alloc+0x5d/0xa0 mm/slub.c:3302
 slab_alloc_node mm/slub.c:3387 [inline]
 __kmem_cache_alloc_node+0x207/0x2a0 mm/slub.c:3462
 __do_kmalloc_node mm/slab_common.c:937 [inline]
 __kmalloc_node_track_caller+0xa2/0x1e0 mm/slab_common.c:958
 kmalloc_reserve net/core/skbuff.c:446 [inline]
 __alloc_skb+0x125/0x2d0 net/core/skbuff.c:515
 alloc_skb include/linux/skbuff.h:1290 [inline]
 netlink_dump+0x1f0/0xd40 net/netlink/af_netlink.c:2210
 netlink_recvmsg+0x6ca/0x1180 net/netlink/af_netlink.c:1957
 ____sys_recvmsg+0x285/0x530
 ___sys_recvmsg net/socket.c:2770 [inline]
 __sys_recvmsg+0x2e9/0x3d0 net/socket.c:2800
 __do_sys_recvmsg net/socket.c:2810 [inline]
 __se_sys_recvmsg net/socket.c:2807 [inline]
 __x64_sys_recvmsg+0x7f/0x90 net/socket.c:2807
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88811ca00900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88811ca00980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88811ca00a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff88811ca00a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88811ca00b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 522 Comm: syz.2.51 Tainted: G    B              6.1.118-syzkaller-00074-g3e3f2b9e9fca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__queue_work+0x4f1/0xd70
Code: 39 03 0f 84 40 01 00 00 e8 fc 6b 2a 00 4c 89 e7 e8 e4 d3 d6 03 49 bd 00 00 00 00 00 fc ff df 4c 8b 65 d0 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 30 df 71 00 49 8b 3e e8 98 cc d6
RSP: 0018:ffffc900001b0c78 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff888100946540
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc900001b0d00 R08: ffffffff814b186b R09: 0000000000000007
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811ca009c8
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88811ca009e0
FS:  00007ff59e78e6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff59d969160 CR3: 0000000120363000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 delayed_work_timer_fn+0x61/0x80 kernel/workqueue.c:1653
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1550 [inline]
 __run_timers+0x756/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:617
 __do_softirq kernel/softirq.c:655 [inline]
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5294
Code: 74 08 4c 89 ff e8 01 78 6c 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 79 6c d1 03 fb 49 8d 9d 48 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc90010f37320 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888100947088 RCX: 0000000000000002
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc90010f37370 R08: dffffc0000000000 R09: ffffed102148228e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6f37c80
R13: ffff888100946540 R14: 0000000000000000 R15: 1ffff1103ede4e65
 context_switch kernel/sched/core.c:5420 [inline]
 __schedule+0xcbd/0x1560 kernel/sched/core.c:6747
 schedule+0xc3/0x180 kernel/sched/core.c:6823
 schedule_timeout+0xa9/0x380 kernel/time/timer.c:1947
 unix_wait_for_peer+0x24b/0x330 net/unix/af_unix.c:1445
 unix_dgram_sendmsg+0x1348/0x2050 net/unix/af_unix.c:2024
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 ____sys_sendmsg+0x5d3/0x9a0 net/socket.c:2509
 ___sys_sendmsg net/socket.c:2563 [inline]
 __sys_sendmmsg+0x3b9/0x6f0 net/socket.c:2649
 __do_sys_sendmmsg net/socket.c:2678 [inline]
 __se_sys_sendmmsg net/socket.c:2675 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2675
 x64_sys_call+0x81d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:308
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff59d985d29
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:00007ff59e78e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007ff59db75fa0 RCX: 00007ff59d985d29
RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007ff59da01aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff59db75fa0 R15: 00007fffd31b6028
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0x4f1/0xd70
Code: 39 03 0f 84 40 01 00 00 e8 fc 6b 2a 00 4c 89 e7 e8 e4 d3 d6 03 49 bd 00 00 00 00 00 fc ff df 4c 8b 65 d0 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 30 df 71 00 49 8b 3e e8 98 cc d6
RSP: 0018:ffffc900001b0c78 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff888100946540
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc900001b0d00 R08: ffffffff814b186b R09: 0000000000000007
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811ca009c8
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88811ca009e0
FS:  00007ff59e78e6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff59d969160 CR3: 0000000120363000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	74 08                	je     0xa
   2:	4c 89 ff             	mov    %r15,%rdi
   5:	e8 01 78 6c 00       	call   0x6c780b
   a:	49 8b 1f             	mov    (%r15),%rbx
   d:	48 85 db             	test   %rbx,%rbx
  10:	4c 8b 6d c0          	mov    -0x40(%rbp),%r13
  14:	0f 85 ce 00 00 00    	jne    0xe8
  1a:	4c 89 e7             	mov    %r12,%rdi
  1d:	e8 79 6c d1 03       	call   0x3d16c9b
  22:	fb                   	sti
  23:	49 8d 9d 48 0b 00 00 	lea    0xb48(%r13),%rbx
* 2a:	48 89 d8             	mov    %rbx,%rax <-- trapping instruction
  2d:	48 c1 e8 03          	shr    $0x3,%rax
  31:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  38:	fc ff df
  3b:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax